Conceptual Physics: Buoyancy of air

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Marshall Ellenstein

13 жыл бұрын

Paul Hewitt explains buoyancy of air and why a helium filled ballon goes up.

Пікірлер: 9

@nanabuuui 11 жыл бұрын

thank you! I really love your enthusiasm!

@jeethendrakumarpk6889 7 жыл бұрын

Nice demo

@LS8eighteen 2 жыл бұрын

You missed the boat - eh - the balloon by not including the buoyancy of warmer air created by contact to the ground which in turn the sun heated up. That convection is the cause of thermals that are evident when they condensate into clouds at the level when the dew point of the ascending air goes to 100% rel. humidity. I fly my glider using thermals to gain altitude for many hours and for hundreds of miles.

@h7opolo Жыл бұрын

so if we didnt compress our hot air that we're all full of, we could float.

@patrickbateman3440 11 жыл бұрын

i don't mean to discredit this guy he gave a great explanation of buoyancy however look at him move about at 100 miles per hour . the only physical explanation for this observation is crack addict

@MrSnuggelsworth 7 жыл бұрын

I'm assuming you had a professor of that nature, and flunked, which is where your sour opinion comes into play. I find his persona less "crack addict like," and more on the enthusiastically enriched like.

@Greg_Chase 4 жыл бұрын

@Patrick Bateman -- Good gawd dude, take some aspirin

@johnwikstrom9887 4 жыл бұрын

He was my physics instructor; that energy is related to good genes. Hewitt moved from boxing to animation to physics, and look at his instant artistic grace at the board! This teaching machine outperformed the web decades earlier, a true phenom. His demos are legend.

@johnnybrix717 4 ай бұрын

So doesn’t that kind of dispel the theory of gravity. Is gravity not really just density. We don’t float off the earth because of density, not gravity. We’re more dense than the air around us. Kind of 💩’s on the what goes up must come down theory.