Weather: Measuring Air Pressure

Jared shows us how to make a barometer, and explains air pressure.

Jared teaches us about air pressure and how to make our own barometer.

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[laurettecousins]

My teacher sent me to watch this video. This is a very good video.

[pixlized]

Thanks for making this video! I needed to understand them better for Physical Science.

[crustyHO]

Don't forget thermal expansion and contraction of air. Holding the glass warms it up, which expands the glass, and warms the air, which expands that as well. You seal it with a balloon and lay it down, the glass cools and contracts, along with the air, and it reduces volume, causing a vacuum. The same thing is done when sealing mason jars. You can see the same thing sealing hot food in a container and letting it cool, a lot of times it will pop the lid off from the amount of vacuum it pulls after it cools down.

[SN-znqd]

A good application of this is the air pressure inside the airplane. Your explanation reminded me about the ear pop. Very interesting demos and I really liked the passion you exhibit to explain these difficult concepts.

[BlueGravity]

Toothpick is not long enough to give alot of movement. Better to use a longer stick.

[barackbuloso]

Thank God tomorrow is school if I don't complete this I will be in detention

[indikapushpa]

I love this video.because it helps to my project

[amberchisholm]

i just saw this today and it was so cool

[kouchuujin]

This explains my barometric pressure mirgaines visually. Lol

[rogue]

It is the force exerted on a surface by the air above it as gravity pulls it to Earth

[duaymeri]

Hi i know its late
but can we put straws instead of toothpick.

[bhargaviindora]

hello sir
what can we use instead of a ballon?

[shaguftaparween]

please can you tell the required materials

[robertreal]

Air pressure is held on by the curvature of spacetime?

[grahamstudley]

him: blue is cool

also him: *uses a red balloon*

[TVTimes-nxfz]

Thanks sir. Can I know more about weather from you.

[randomstuffwithkori]

So I have a question .... if we say air pressure exerts force on all direction y can't we jump from a very high building or mountain then wait for the air pressure to hold us there....I know the effect of gravity but what happens to air pressure here

[wavyy_and_kudos]

bro am I the only one watching this for homework