Subscribe Now: http://www.youtube.com/subscription_center?add_user=ehoweducation Watch More: http://www.youtube.com/ehoweducation The pressure of Earth's atmosphere at sea level has about 20 different answers, all of which are right. Find out about the pressure of Earth's atmosphere at sea level with help from an experienced educator in this free video clip. Expert: Eylene Pirez Filmmaker: bjorn wilde Series Description: The solar system is one of the most unique and interesting topics that we as humans have the pleasure of studying. Learn about astronomy and the stars with help from an experienced educator in this free video series.
Views: 4316 eHowEducation
This atmospheric hoax has been going on too long and needs to come to a stop. You are being pressurized into accepting pseudoscience as real science. The so called 'Earth' is flat and the sooner you can get you head around the idea the sooner you can move on.
Views: 471 THE LIGHT IS ON
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Views: 199 Question & Answer
Atmospheric pressure plays an essential role in respiration and the function of many devices, including water pumps, syringes and drinking straws. The video explains pascals and psi and includes a demonstration revealing the presence of atmospheric pressure.
Views: 354633 ScienceOnline
In this video we will be studying about the different pressure belts on Earth and the different kinds of winds. We will also study the different instruments to measure the atmospheric pressure like the mercury barometer , aneroid barometer, altimeter etc, We will also study the different instruments to measure the wind direction and wind speed which are wind vane and anemometer respectively. There are basically two types of winds: 1. Permanent Winds: Winds which blow throughout the year 2. Local winds: Winds which blow over a smaller area in a particular time Permanent winds include the Trade Winds and Westerlies which blow from the sub tropical high pressure belt to equatorial low pressure belt and sub polar low pressure belt respectively. Must buy book for GK test preparation: http://amzn.to/2IsK6JT If you feel that this video was in way helpful to you and you want to support us financially to make more such videos then you can contribute to us on Paytm. Our Paytm no. 9852108896 You can also visit our website: www.thevedicacademy.com You can also like our facebook page: The Vedic Academy Thank you for watching this video
Views: 42071 THE VEDIC ACADEMY
NCAR Global General Circulation Model of the Atmosphere showing sea-level pressure distribution on a polar equidistant projection of the Northern Hemisphere. The NCAR General Circulation Model was developed by Warren Washington and Akira Kasahara in the 1960s. Copyright University Corporation for Atmospheric Research (UCAR). This work is licensed under a Creative Commons Attribution-Non Commercial 4.0 International License. NCAR is sponsored by the National Science Foundation.
Views: 13 NCAR Archives
Learn about the highest possible amount of vacuum pressure and what causes it. Learn how it changes at different elevations. See this and over 140+ engineering technology simulation videos at http://www.engineertech.org. Simulations provided free under a Department of Labor grant awarded Eastern Iowa Community Colleges. To learn more visit http://www.eicc.edu.
Chinese researchers manage to collect sea water samples from a depth of more than 10km while retaining the pressure which is more than 1,000 times the standard atmospheric pressure at sea level.
Views: 386 New China TV
Atmospheric pressure, sometimes also calledbarometric pressure, is the pressure within the atmosphere of Earth (or that of another planet). In most circumstances atmospheric pressure is closely approximated by thehydrostatic pressure caused by the weight ofair above the measurement point. Aselevation increases, there is less overlying atmospheric mass, so that atmospheric pressure decreases with increasing elevation. Pressure measures force per unit area, with SI units of Pascals (1 pascal = 1 newton per square metre, 1 N/m2). On average, a column of air with a cross-sectional area of 1 squarecentimetre (cm2), measured from mean (average) sea level to the top of Earth's atmosphere, has a mass of about 1.03kilogram and exerts a force or "weight" of about 10.1 newtons or 2.37 lbf, resulting in a pressure at sea level of about 10.1 N/cm2 or 101 kN/m2 (101 kilopascals, kPa). A column of air with a cross-sectional area of 1 in2 (6.45 cm2) would have a mass of about 6.65 kg and a weight of about 65.4 N or 14.7 lbf, resulting in a pressure of 10.1 N/cm2 or 14.7 lbf/in2. In the United States, atmospheric pressure near sea level is commonly rounded to 15 lbf/in2, and expressed as "15 psi" (15 pounds per square inch.) https://youtu.be/_0rqRMm_Eew https://youtu.be/Ngz6wFPtKvI https://youtu.be/xUp-X0jAvCc
Views: 14943 Study Lovers
The hypsometric equation, also known as the thickness equation, relates an atmospheric pressure ratio to the equivalent thickness of an atmospheric layer under the assumptions of constant temperature and gravity. It is derived from the hydrostatic equation and the ideal gas law. Pascal's law (also Pascal's principle or the principle of transmission of fluid-pressure ) is a principle in fluid mechanics that states that pressure at a point, has infinite direction, and thus a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere. The law was established by French mathematician Blaise Pascal in 1647–48. What is the value for atmospheric pressure? Standard sea-level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103dynes per square centimetre,1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals. What is atmospheric pressure on human body? Yes, to some extent we are also carrying a huge amount of pressure. At sea level, the atmospheric pressure is about14.7 psi. This means that the atmosphere is exerting 14.7 pounds of force on every square inch of our body which is really huge. What is considered low atmospheric pressure? When the air pressure drops, so does the mercury level."Atmospheric pressure can also be measured in millibars (mb), with a "bar" being roughly equivalent to one atmosphere ofpressure (one atmosphereequals 1.01325 bars). One bar is equivalent to 29.6 in. Hg.A barometer reading of 30 inches (Hg) is considered normal. What is the definition of pressure in science? Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid. ... Absolute pressure of a gas or liquid is the total pressure it exerts, including the effect of atmospheric pressure. An absolute pressure of zero corresponds to empty space or a complete vacuum. What is the simple definition of pressure? Pressure means how much something is pushing on something else. It is expressed as force per unit area: P=F/A. In technology, pressure is often specified in multiples of atmospheric pressure. It can also be defined as the thrust [compressive force acting perpendicularly to the surface of a body] acting per unit area. What is called pressure? pressure. Posted by: Margaret Rouse. Pressure is an expression of force exerted on a surface per unit area. The standard unit of pressure is the pascal (Pa), equivalent to one newton per meter squared (N/m 2 or N. What are 5 units of pressure? pascalpound per square inchPapsi1 atm1.01325 ×10514.6961 Torr133.32219.337×10−31 psi6.895×103≡ 1 lbf/in2 How do you calculate the pressure? Pressure and force are related, and so you cancalculate one if you know the other by using the physics equation, P = F/A. Becausepressure is force divided by area, its meter-kilogram-second (MKS) units are newtons per square meter, or N/m2. What is a pressure in science? Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid. ... Absolutepressure of a gas or liquid is the total pressure it exerts, including the effect of atmospheric pressure. What are some examples of pressure? Examples of fluid motion because of pressure include breathing, and air currents (weather). When you breathe in, you move a diaphragm that lowers the pressure inside your lungs. Higher pressureair outside your body is sucked into the lungs to fill the gap. Sea and land breezes work similarly. How do you calculate water pressure? Find Water Pressure of Upright Cylinder. Determine the water pressure at the bottom of a full, upright cylinder by dividing the volume by the product of pi (?) multiplied by radius squared (R^2): V = ?R^2. This gives the height. If the height is in feet, then multiply by 0.4333 to get pounds per square inch (PSI). How do you calculate hydrostatic pressure? The pressure in a liquid at a given depth is called the hydrostatic pressure. This can be calculatedusing the hydrostatic equation: P = rho * g * d, where P is thepressure, rho is the density of the liquid, g is gravity (9.8 m/s^2) and d is the depth (or height) of the liquid. ######################### DiscoverPhysics is a Collection of Best Videos of ... CREATIVE COMMONS VIDEOS (reuse allowed) FROM YOUTUBE.COM. DiscoverPhysics is an Educational Non-Profit with a Mission to expand free Education, access to Scientific Research. Your Advice & Suggestions will be much Appreciated and Welcomed. [email protected] For details please visit the following site's. https://physics.uchicago.edu/ https://en.m.wikipedia.org/wiki/Physics https://www.britannica.com/physics Will update soon. https://m.facebook.com/DiscoverPhysics https://www.quora.com/profile/Amir-Khan-2092/ https://DiscoverPhysics
Views: 1 DiscoverPhysics
@19:22 Pressure at sea level is 29.92 inches Dr. Manishika Jain explains the concept of pressure in climatology along with the vertical and horizontal distribution of pressure. The lecture also explains the various instruments used to measure pressure like barometer and manometer. Climatology Pressure @0:11 Vertical Distribution @4:36 Horizontal Distribution (at Sea Level) @6:49 Aneroid Barometer @16:22 Mercury Barometer @17:44 #Mercury #Barometer #Aneroid #Horizontal #Distribution #Vertical #Pressure #Climatology #Manishika #Examrace Join our fully evaluated UPSC Geography optional test series at - https://www.doorsteptutor.com/Exams/IAS/Mains/Optional/Geography/Test-Series/, Post evaluation get personalized feedback & improvement call for each test. IAS Mains Geography optional postal course visit - http://www.examrace.com/IAS/IAS-FlexiPrep-Program/Postal-Courses/Examrace-IAS-Geography-Series.htm For Maps and locations books click here - http://www.examrace.com/IAS/IAS-FlexiPrep-Program/Postal-Courses/Examrace-IAS-Geography-Maps-Series.htm CBSE NET Geography optional postal course visit - http://www.examrace.com/CBSE-UGC-NET/CBSE-UGC-NET-FlexiPrep-Program/Postal-Courses/Examrace-CBSE-UGC-NET-Geography-Series.htm Lectures organised in topics and subtopics: https://www.doorsteptutor.com/Exams/IAS/Mains/Optional/Geography/ For IAS Prelims visit https://www.doorsteptutor.com/Exams/IAS/Prelims/ For Lecure Handouts visit http://www.examrace.com/Study-Material/Geography/ or do google search "Youtube Lecture Handouts Examrace Climatology Pressure" Have a doubt? No worries. We promptly respond to queries asked as comments.
Views: 63007 Examrace
This video explains the basic concepts of Atmospheric Pressure! To view the entire course for free, visit our website here: https://dontmemorise.com/course/index.php?categoryid=52 Don’t Memorise brings learning to life through its captivating FREE educational videos. To Know More, visit https://DontMemorise.com New videos every week. To stay updated, subscribe to our YouTube channel : http://bit.ly/DontMemoriseYouTube Register on our website to gain access to all videos and quizzes: http://bit.ly/DontMemoriseRegister Subscribe to our Newsletter: http://bit.ly/DontMemoriseNewsLetter Join us on Facebook: http://bit.ly/DontMemoriseFacebook Follow us on Twitter: https://twitter.com/dontmemorise Follow us : http://bit.ly/DontMemoriseBlog
Views: 166868 Don't Memorise
In this video, I show how a gas - a bunch of particles bouncing in a chamber - forms a density gradient if there is a force pulling them in one direction. The force is to the right but you should have no problems imagining that it points downwards. There is no voice-over – the animation seems sufficiently self-explanatory.
Views: 4953 Dekmiak
Za srpski titl uključite cc, captions. Any connection between the mean sea level pressure and a domed flat Earth? Or winds are doing their job? Anyway, graphs are making more sense on a flat Earth... https://en.wikipedia.org/wiki/Atmospheric_pressure https://earth.nullschool.net/#current/wind/surface/level/overlay=mean_sea_level_pressure/winkel3 https://iridl.ldeo.columbia.edu/maproom/Global/Atm_Circulation/Sea_Level_Pres.html Research flat Earth...even if it sounds stupid.
Views: 470 Užasnuti :: Horrified
"Atmospheric pressure" is the pressure exerted by the weight of air in the atmosphere of Earth . In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. On a given plane, low-pressure areas have less atmospheric mass above their location, whereas high-pressure areas have more atmospheric mass above their location. Likewise, as elevation increases, there is less overlying atmospheric mass, so that atmospheric pressure decreases with increasing elevation. On average, a column of air one square centimeter in cross-section, measured from sea level to the top of the atmosphere, has a mass of about 1.03 kg and weight of about 10.1 N . Atmospheric pressure is sometimes called barometric pressure. The standard atmosphere is a unit of pressure equal to 101325 Pa or 1013.25 hectopascals or millibars. Equivalent to 760 mmHg , 29.92 inHg, 14.696 psi. The mean sea level pressure is the atmospheric pressure at sea level or the station pressure adjusted to sea level assuming that the temperature falls at a lapse rate of 6.5 K per km in the fictive layer of air between the station and sea level. This is the atmospheric pressure normally given in weather reports on radio, television, and newspapers or on the Internet. When barometers in the home are set to match the local weather reports, they measure pressure adjusted to sea level, not the actual local atmospheric pressure. Wiz Science™ is "the" learning channel for children and all ages. SUBSCRIBE TODAY Disclaimer: This video is for your information only. The author or publisher does not guarantee the accuracy of the content presented in this video. USE AT YOUR OWN RISK. Background Music: "The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library. This video uses material/images from https://en.wikipedia.org/wiki/Atmospheric+pressure, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . To reuse/adapt the content in your own work, you must comply with the license terms.
Views: 2158 Wiz Science™
FREE FACT: An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size. A special thanks to our Subbable.com supporters: Robby Weisenfeld Gustav Delius Ike https://www.youtube.com/TheNilFacts And to Audible.com - FREE audiobook at http://www.audible.com/minutephysics MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions. Created by Henry Reich
Views: 3082953 minutephysics
Topic: Atmospheric Pressure Why don't we get crushed by atmospheric pressure? Hey. Did you hear that? His ears popped. Is this related to atmospheric pressure? Yes. We know that our earth is surrounded by a layer of air called the atmosphere. The gravitational force of earth constantly pulls this atmosphere towards itself. Due to this, the atmosphere exerts a pressure on the surface of the earth as well as on the objects present on its surface. This pressure exerted by the atmosphere is called the atmospheric pressure. This atmospheric pressure outside our body is balanced by the air pressure present inside our body. When the atmospheric pressure decreases, it becomes less than the air pressure inside us. Now, to balance the pressure inside and outside our ears, the air present inside rushes out. Whereas, when the atmospheric pressure increases, it becomes more than the air pressure inside us. So, to balance the pressure inside and outside our ears, the outside air rushes in. This movement of air results in that sudden pop. Have you noticed this before? Has your water bottle ever got crushed once your airplane landed? This happens because of changes in the atmospheric pressure. Generally, the atmospheric pressure in the bottle is equal to that on the surface of the earth. Whereas, in an airplane the atmospheric pressure is low as compared to that on the surface of the earth. During the flight, when you open the bottle and drink some water in the airplane, the atmospheric pressure in the bottle becomes low. This is because the low pressure air present in the airplane occupies the place of water which you just drank. However, when the airplane lands and you come out of the plane, the pressure outside the bottle, that is, the atmospheric pressure on the surface of earth is high as compared to the pressure inside the bottle. Hence, the outside air exerts a greater pressure on the surface of the bottle than the inside air. As a result, the bottle gets crushed. Wow. How is he able to lift such a heavy car? Are we also powerful enough to handle such a huge amount of pressure? Yes, to some extent we are also carrying a huge amount of pressure. At sea level, the atmospheric pressure is about 14.7 psi. This means that the atmosphere is exerting 14.7 pounds of force on every square inch of our body which is really huge. So, why don't we feel this immense pressure? This is because various parts of our body such as ears, nose, lungs and stomach also contain air which exerts pressure on the atmosphere which is equal to the atmospheric pressure. In this way, the atmospheric pressure and the air pressure present inside our body cancel each other. As a result, we don't get crushed by the atmospheric pressure.
Views: 202623 It's AumSum Time
Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to calculate the change in air pressure from the bottom to the top of a mountain.
Views: 11904 Michel van Biezen
Pilot Training Film playlist: https://www.youtube.com/playlist?list=PLCA6387BA013F9A4D more at http://scitech.quickfound.net/aviation_news_and_search.html "Pilots as a group know the atmosphere far better than the average layman. However, high altitude flying demands an even greater knowledge, for it becomes simply a matter of life and death." World War II War Department US Army Air Corps training film TF1-313 Originally a public domain film from the US Army, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). https://en.wikipedia.org/wiki/Cabin_pressurization Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft, in order to create a safe and comfortable environment... Pressurization becomes increasingly necessary at altitudes above 12,500 to 14,000 feet (3,800 to 4,300 m) above sea level to protect crew and passengers from the risk of a number of physiological problems caused by the low outside air pressure above that altitude. It also serves to generally increase passenger comfort and is a regulatory requirement above 15,000 feet (4,600 m) in the U.S. The principal physiological problems are listed below. Pressurization of the cargo hold is also required to prevent damage to pressure-sensitive goods that might leak, expand, burst or be crushed on re-pressurization. Hypoxia The lower partial pressure of oxygen at altitude reduces the alveolar oxygen tension in the lungs and subsequently in the brain, leading to sluggish thinking, dimmed vision, loss of consciousness, and ultimately death. In some individuals, particularly those with heart or lung disease, symptoms may begin as low as 5,000 feet (1,500 m), although most passengers can tolerate altitudes of 8,000 feet (2,400 m) without ill effect. At this altitude, there is about 25% less oxygen than there is at sea level. Hypoxia may be addressed by the administration of supplemental oxygen, either through an oxygen mask or through a nasal cannula. Without pressurization, sufficient oxygen can be delivered up to an altitude of about 40,000 feet (12,000 m). This is because a person who is used to living at sea level needs about 0.20 bar partial oxygen pressure to function normally and that pressure can be maintained up to about 40,000 feet (12,000 m) by increasing the mole fraction of oxygen in the air that is being breathed. At 40,000 feet (12,000 m), the ambient air pressure falls to about 0.2 bar, at which maintaining a minimum partial pressure of oxygen of 0.2 bar requires breathing 100% oxygen using an oxygen mask. Emergency oxygen supply masks in the passenger compartment of airliners do not need to be pressure-demand masks because most flights stay below 40,000 feet (12,000 m). Above that altitude the partial pressure of oxygen will fall below 0.2 bar even at 100% oxygen and some degree of cabin pressurization or rapid descent will be essential to avoid the risk of hypoxia. Altitude sickness Hyperventilation, the body’s most common response to hypoxia, does help to partially restore the partial pressure of oxygen in the blood, but it also causes carbon dioxide (CO2) to out-gas, raising the blood pH and inducing alkalosis. Passengers may experience fatigue, nausea, headaches, sleeplessness, and (on extended flights) even pulmonary oedema. These are the same symptoms that mountain climbers experience, but the limited duration of powered flight makes the development of pulmonary oedema unlikely. Altitude sickness may be controlled by a full pressure suit with helmet and faceplate... Decompression sickness The low partial pressure of gases, principally nitrogen (N2) but including all other gases, may cause dissolved gases in the bloodstream to precipitate out, resulting in gas embolism, or bubbles in the bloodstream. The mechanism is the same as that of compressed-air divers on ascent from depth. Symptoms may include the early symptoms of "the bends"—tiredness, forgetfulness, headache, stroke, thrombosis, and subcutaneous itching—but rarely the full symptoms thereof... Barotrauma As the aircraft climbs or descends, passengers may experience discomfort or acute pain as gases trapped within their bodies expand or contract. The most common problems occur with air trapped in the middle ear (aerotitus) or paranasal sinuses by a blocked Eustachian tube or sinuses. Pain may also be experienced in the gastrointestinal tract or even the teeth (barodontalgia)...
Views: 7581 Jeff Quitney
To see all my Chemistry videos, check out http://socratic.org/chemistry We'll learn about the amount of pressure that the air around us exerts, and we'll see how to measure pressure using a U tube barometer or a manometer with a vacuum. The units that we get are in mmH2O and mmHg. The amount of pressure changes depending on the altitude above or below sea level.
Views: 156840 Tyler DeWitt
1. On the surface of the earth, there is a thick layer of gas called the atmosphere. The atmosphere consists of various types of gas called the atmospheric gas. 2. The atmospheric gases collide on the surface of the earth and hence exert a pressure on the surface of the earth, called the atmospheric pressure. 3. The atmospheric pressure can be measured in the unit of atm, mmHg or Pa. The atmospheric pressure at sea level is taken to be 1 atm, which is approximately 760 mmHg or 101,000 Pa. This video is created by http://www.onlinetuition.com.my/ More videos and free notes are available at http://spmphysics.onlinetuition.com.my/
Views: 1620 myhometuition
Learn complete Physics for IIT JEE for free. Browse through topics and tons of solved examples to practice solving easy and tough problems.
Views: 4638 Physics Galaxy
Created to visually identify atmospheric rivers on the west coast of North America using sea level pressure and precipitable water content. For example, days 17 through 19 show a clear atmospheric river being funneled between low and high pressure systems. Another good example are days 83 - 85. Sea level pressure - shown by contour lines. Dashed = low pressure and solid = high pressure. Precipitable water content - shown by filled contours. White represents values under 2 cm and the color scale shows values greater than 2 cm according to the color bar. Movie created by Sol Kim for an honors thesis as an undergraduate student at UC Berkeley. Collaboration by Professor Norman Miller and graduate student Hoseok Lee (both UC Berkeley). Program: MATLAB. Data: NCEP/NCAR Reanalysis I. Contact: [email protected]
Views: 227 Sol Kim
in this video i will describe about atmospheric pressure of class 8 from the chapter force and pressure hope you learn something from the video pressure exerted by liquids and gases - https://youtu.be/UC26vzMzq_I for more videos click here-#BlazingScience
Views: 7093 Blazing Science
The molecules leaving a liquid through evaporation create an upward pressure as they collide with air molecules. This upward push is called the vapor pressure. Different substances have different vapor pressures and therefore different boiling points. This is due to differing intermolecular forces between molecules. The vapor pressure of a liquid lowers the amount of pressure exerted on the liquid by the atmosphere. As a result, liquids with high vapor pressures have lower boiling points. Vapor pressure can be increased by heating a liquid and causing more molecules to enter the atmosphere. At the point where the vapor pressure is equal to the atmospheric pressure boiling will begin. In effect, without any external pressure the liquid molecules will be able to spread out and change from a liquid to a gaseous phase. The gas, as bubbles in the liquid, will rise to the surface and be released into the atmosphere. See: http://chemwiki.ucdavis.edu/Core/Physical_Chemistry/Physical_Properties_of_Matter/States_of_Matter/Phase_Transitions/Boiling
Views: 138013 Wayne Breslyn
This chemistry video tutorial provides a basic introduction to pressure. Pressure is defined as force per unit area. 1 Pascal equals 1 Newton of Force per square meter of area. This tutorial gives you an example of calculating the pressure exerted by a book on the table using the weight force of the book and its cross sectional area. This lecture also discusses the inverse relationship between elevation and atmospheric pressure. As the elevation increases, the atmospheric pressure decreases and the boiling point of water decreases. It's easier to boil water on a mountain since the air pressure is so low but it's harder to boil in a valley that is below sea level. This video also considers the gases that make up the atmosphere. Heavy gases tend to sink down and lighter gases rise. In addition, hot air rises and cold air descends. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Views: 6950 The Organic Chemistry Tutor
This physics video tutorial provides a basic introduction into atmospheric pressure. it explains how to calculate the force exerted by the atmospheric over a given surface area. It discusses how to calculate the pressure exerted by the air and how to calculate the mass of air in a vertical column. It contains plenty of practice problems for you to work on. New Physics Video Playlist: https://www.youtube.com/playlist?list=PL0o_zxa4K1BU6wPPLDsoTj1_wEf0LSNeR Access to Premium Videos: https://www.patreon.com/MathScienceTutor https://www.facebook.com/MathScienceTutoring/
Views: 20936 The Organic Chemistry Tutor
This video describe changes in air pressure and temperature with altitude, as well as, the composition of the atmosphere. This video screencast was created with Doceri on an iPad. Doceri is free in the iTunes app store. Learn more at http://www.doceri.com
Views: 2244 Amanda Eye
Put out your open hand - grab hold of a handful of air - there is NOTHING there! Or so it seems! But there is - there's a powerful lot of STUFF there -an enormous array of it! The ATMOSPHERE is a massive thing. The pressure of the air is about 15 pounds per square inch at sea level. On every square inch of everything there is a load of 15 pounds - very nearly. The average human being bears a load of some TWENTY TONS! The whole blanket of atmosphere which envelops the Earth weighs some 5000 million million tons! Fantastic! We show an array of enchanting DEMONSTRATIONS on THE PUSH OF THE AIR. A - We boil water in a tin can. We drive out all the air. We now stopper up the can. The water vapor in the can condenses - that is - it goes back into the liquid state. The pressure in the can is reduced. The atmosphere squeezes the can! The PUSH of the air is terrific. B - We do the same thing with another can but in this case we evacuate the can - we take out SOME of the air - with a vacuum pump. Again the great push of the air squeezes the can. C - A funnel has its open end covered with a stout rubber sheet. We take out some of the air. The atmosphere PUSHES the sheet in — the more air we take out the more it pushes in - and suddenly BANG - the sheet is burst apart by the PUSH of the air. D - "Suction" cups! This is bad language! There is NO SUCTION! We squeeze the "suction" cups together; we drive out the air between them. Then what? The atmosphere OUTSIDE pushes them together! And very strongly. E - We do the classic experiment of Otto von Guericke with the Magdeburg Hemispheres. In the original demonstration in the Public Square SIXTEEN HORSES pulled the hemispheres apart. But only eight were really necessary. See why? F - On a sheet of newspaper about 20" by 30" - that is - on an area of 600 square inches - there rests a load of atmosphere of some 9000 pounds. Fantastic! Now we wish to put this enormous load - this massive MASS - into motion by a short-lived impulsive blow. Remember the Sack of Bricks in Inertia? Newton said: "A body at rest wishes to remain at rest". And 9000 pounds - over FOUR TONS - has just too much inertia to be put into motion suddenly. So BANG! The board is broken because the great load of air does not wish to move. When the air is quiet the PUSH of the air is something to think about. Imagine what happens when this massive air is on the move - as in a hurricane or in a tornado. Cities are destroyed!
Views: 13111 Matthew Bryant
Download the Density Altitude Chart used in this video: http://bit.ly/2xhY2Rc Watch the previous video in this series: https://youtu.be/cssf-ksnMlQ For the best prices on the latest drones, visit B&H online at: https://bhpho.to/2tNu7m6 In this episode, the Roswell Flight Test Crew helps you prepare for your Part 107 pilot's test by teaching you how to calculate pressure altitude: the altitude your aircraft “feels” like it's flying at, based on its elevation above sea level as well as the local atmospheric pressure. Atmospheric pressure drops as altitude increases, making airfoils, like wings and propellers, less efficient. However, atmospheric pressure is also affected by high pressure and low pressure weather systems. This is reflected in the local barometric pressure reading, measured in inches of mercury and also referred to as the altimeter setting. By reference the local altimeter setting and the density altitude chart, you can determine your pressure altitude.
Views: 8982 Roswell Flight Test Crew
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Views: 1468 Question & Answer
1. On the surface of the earth, there is a thick layer of gas called the atmosphere. The atmosphere consists of various types of gas called the atmospheric gas. 2. The atmospheric gases collide on the surface of the earth and hence exert a pressure on the surface of the earth, called the atmospheric pressure. 3. The atmospheric pressure can be measured in the unit of atm, mmHg or Pa. The atmospheric pressure at sea level is taken to be 1 atm, which is approximately 760 mmHg or 101,000 Pa. This video is created by http://www.onlinetuition.com.my/ More videos are available at http://spmphysics.onlinetuition.com.my/
Views: 3310 myhometuition
The pressure of gas above a liquid affects the boiling point. In an open system this is called atmospheric pressure. The greater the pressure, the more energy required for liquids to boil, and the higher the boiling point. Higher Pressure = More Energy Required to Boil = Higher Boiling Point In an open system this can be visualized as air molecules colliding with the surface of the liquid and creating pressure. This pressure is transmitted throughout the liquid and makes it more difficult for bubbles to form and for boiling to take place. If the pressure is reduced, the liquid requires less energy to change to a gaseous phase, and boiling occurs at a lower temperature. See http://chemwiki.ucdavis.edu/Core/Physical_Chemistry/Physical_Properties_of_Matter/States_of_Matter/Phase_Transitions/Boiling
Views: 47459 Wayne Breslyn
In this context "ATM" is short for atmospheres, where 1 atmosphere is the normal pressure at sea level. It is a rating for water resistance. So 10 atmospheres means the watch can withstand 10 times the pressure at sea level without allowing water in. This is equivalent to being 100m underwater, but moving water exerts more pressure than still, so you couldn't literally dive to 100 meters with it. Swimming at the surface of a swimming pool could subject a watch to 3 atmospheres of pressure, and jumping or diving in would add more. A 10-atmosphere (or 10-bar) rating is good enough for swimming at the surface or snorkeling at a shallow depth, but not enough for SCUBA diving.
Views: 94 Thalian Demon
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Views: 26 Question & Answer
Forecast until April 28. Western Hemisphere; Atlantic Ocean. Provided direction and intensity of winds, atmospheric pressure at sea level and temperatures readings until April 28. Using data from NOAA GFS forecast model. The wind speeds indicated in knots (nautical miles per hour) according to the scale on the right of each map predicted; direction with arrows. Predicted air temperatures are in degrees celsius with its numerical value directly on the map. In the top left box the date and time indicated. The time is expressed in UTC Coordinated Universal Time.
Views: 114 Gabriel Labrador
Atmospheric pressure is the pressure of air on the inside of it and the objects on the Earth's surface. At each point of the atmosphere and atmospheric pressure is equal to the weight of the overlying column of air base equal to the unit area. In 1643, Evangelista Torricelli showed that air has weight. Together with V. Viviane, Torricelli held the first attempt to measure the atmospheric pressure, Torricelli invented the tube - glass tube, in which there is no air.
Views: 313 ChipDipvideo
The ocean is a deep, dark, and mysterious place. We might think we know a lot about it, but in fact only about five percent of the ocean's seafloor has been mapped. You won't believe what we actually found in the deep sea! Interested? You can also check out other amazing stories about our world and subscribe to the channel! ► http://bit.ly/Subscribe-to-Richest ◄ Like Mysterious Rooms You Should Never Visit https://www.youtube.com/watch?v=a40nuYaG9Us Or 20 Terrifying Facts About The Deep Web - Why It Isn’t Safe https://www.youtube.com/watch?v=8ZM3aRw0Wf8 When you take into consideration that the ocean occupies around 70 percent of the earth's surface, that leaves a huge 65 percent of the world that we're still unsure about. More men have stepped on the surface of the moon than have dived into the depths of the Mariana Trench in the Pacific Ocean. But luckily, most of our experiences with the ocean are positive ones. We can swim in the sea, wander across the shore, or sunbathe on the beach and watch the waves lap against the sand. Or, we can take exploratory trips into the water to look for special animals, we can use jet skis and speedboats to make the most of the water's free spirit, or we can simply go for a relaxing paddle. But there's a darker side to the ocean that we try not to think about. The further down into the water you go, the less we know about what to expect down there. With conditions unlike anywhere else on earth, only the toughest creatures can survive. Some of them are harmless, but some of them are dangerous. Scientists have dedicated years of research into discovering this previously-unknown portion of the world but not all of it has been successful. But some of what they have found over the years has forced them to think twice about everything we know. Before you start thinking that these experts are just lazy, you need to take into account just how severely different the pressure and atmosphere is once you're below sea level. Surroundings can be incredibly dangerous so only the bravest venture down into the unknown. For copyright matters please contact us at: [email protected] Our Social Media: Facebook: https://facebook.com/TheRichest.org Twitter: https://twitter.com/TheRichest_Com Instagram: http://instagram.com/therichest For more videos and articles visit: http://therichest.com/
Views: 68393 TheRichest
Video lecture, lesson summary, revision notes and solutions of CBSE NCERT Geography Class 11 Chapter 10 Atmospheric Circulation and Weather Systems. This educational video is important and forms foundation for UPSC / IAS, SSC CGL, CDS, NDA and other school examinations. ***Time Stamp*** 1. Atmospheric Pressure @ 0:55 2. Vertical Variation of Pressure @ 3:22 3. Horizontal Distribution of Pressure @ 4:37 4. Isobars @ 5:00 5. Isotherms @ 5:12 6. World Distribution of Sea Level Pressure @ 6:11 7. Forces Affecting the Velocity and Direction of Wind @ 7:08 8. Pressure Gradient Force @ 7:32 9. Frictional Forces @ 7:47 10. General circulation of the atmosphere @ 9:11 11. ENSO El Nino Southern Oscillation @ 12:20 12. Seasonal winds @ 18:39 13. Local Winds @ 19:52 14. Land and Sea Breezes @ 20:14 15. Mountain and Valley Winds @ 21:51 16. Air Masses @ 24:08 17. Fronts @ 25:58 Video link of Subtropical high, Subpolar low, Easterlies, Westerlies | Atmospheric circulation | Pressure belts https://goo.gl/EhShG2 Questions & answers can be found here https://goo.gl/LDKDKY Fill this feedback form for a better learning experience https://goo.gl/vrYPBw Click here if you want to subscribe https://www.youtube.com/user/TheRealSengupta Maps and sketches can be found on the Instagram account search for "geographysimple" Check the other playlists of CBSE NCERT Geography videos Class 6 - https://goo.gl/DDFtIF Class 7 - https://goo.gl/ppPK05 Class 8 - https://goo.gl/OD3Gwh Class 9 - https://goo.gl/AIEXxQ Class 10 - https://goo.gl/inWIAR Class 11 (Part 1) - https://goo.gl/Pn5EIE Class 11 (Part 2) - https://goo.gl/X4zY9K Class 12 - https://goo.gl/Kszpz5
Views: 123100 Amit Sengupta
Neptune holds many mysteries but thanks to an old spacecraft and scientists using ground based telescopes we have an idea of what lurks inside of the strange ice giant. So lets put on our super science fiction space suits and dive directly into Neptune! But what will we find???? *****Check out our NEW Amazon store! Just click on the link below to find loads of awesome gifts just in time for Christmas!***** https://www.amazon.com/shop/v101science (US Version) https://www.amazon.co.uk/shop/v101science (UK Version) **REMEMBER TO SUBSCRIBE FOR MUCH MORE TO COME** Subscribe - https://www.youtube.com/c/V101Science Facebook - https://www.facebook.com/V101Science Twitter - https://twitter.com/V101Science Instagram - https://www.instagram.com/v101__science/ Falling into Neptune description - As you fall towards Neptune you would have an incredible view of the planets immense storms raging below you. You would be descending at a similar speed to if you were falling towards Earth, as Neptune's Gravity is only 14% stronger than our own planets. Because you are so far away from the sun, very little light reaches this distant part of the solar system, resembling a dim twilight back on Earth. You would first fall through high white, cirrus clouds made of methane ice crystals, at about 0.5 atmospheres, which is half the atmospheric pressure at sea level on Earth. At this altitude it is incredibly cold, dropping to below -200 degrees Celsius (-350degrees Fahrenheit). Around 30 miles down you would enter into the ammonia and hydrogen sulphide cloud decks at about 5 atmospheres. Hear the clouds move faster than the speed of sound on Earth, as Neptune experiences the fastest wind in the solar system, reaching speeds of up to 1500 miles per hour. But because of your super science fiction space suit, you are kept steady and continue on your descent. Because of Neptune's thick clouds and distance from the sun, no light can penetrate this deep and you would find yourself in a pitch black, cold, lonely environment, with violent winds whipping past your helmet. After falling for a long time you would be 100 miles into Neptune, when huge flashes of lightning illuminate your dark surroundings, revealing towering white water ice clouds that are causing rumbling thunderstorms to occur. As you pass through this cloud stage the pressure would increase to well above 50 atmospheres and the temperature would be around 26 degrees Celsius. Using your hi tech science fiction helmet you can now see whats around you, but you would quickly realise that the cloud layers where the easy part of the adventure. As you emerge from the bottom of the water ice clouds the pressure would become intense and the temperature would drastically increase to above 1000 degrees Celsius. After a very long time of sinking you would be around 4000 miles in to Neptune and within the planets mysterious mantle layer. Hear your suit would have to withstand pressures greater than 10,000 atmospheres and increasing temperatures higher than 4000 degrees Celsius. This strange super heated layer is composed of water, methane and ammonia ices that behave as a hot dense fluid under immense pressures. Because of these extreme pressures carbon atoms might also crystallise and form diamonds. As you descend ever closer towards Neptune's core, these diamonds would rain down around you like glittering hailstone, as they slowly sink through the liquid mantle. After a long time of sinking through this thick region, with the pressures and temperatures continuing to drastically increase, your adventure would come to an end. Thousands of miles into the planet you would be standing on Neptune's core, a surface roughly the same mass as Earth and made of rock, iron and exotic ices, possibly with a layer of nestled diamonds. In this region you would be stranded, unable to travel further and unable to escape. You would be doomed to spend the rest of your life in a scorching environment with your science fiction suit having to withstands temperature of above 5000 degrees Celsius and pressures of above 7 million atmospheres. Attribution (Music) Erokia Sound Design - Ambient Wave 9 Hiding Your Reality - Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ DISCLAIMER: This video description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. This helps support the channel and allows us to continue to make videos like this. Thank you for the support!
Views: 1274450 V101 Science