Bernoulli's Principle

Demonstration of lift generated by air flow over a surface.
A quarter is placed on the edge of a table. By blowing sharply across the surface of the coin you can generate enough lift to cause the coin to lift off the table and fly into a cup placed a few inches behind the coin. High Speed Video capture (500 fps) reveals that the coin lifts straight up about 1/8 inch, tips back and fourth, and then gets caught up in the air stream. Bernoulli calculations indicate that air velocity must reach about 150 mph to lift a coin. For US coins, the surface area varies in similar proportion to the mass of the coin making the required speed about the same for any coin. Read: If you can't do it with a quarter, you won't be able to get a penny, dime, or nickel to work either.

Category:

Education

Tags:

• Physics
• Demonstration
• highspeed
• pinball
• wizard
• Bernoulli
• pressure
• differences

[haluguyz]

it didnt work to mine :/

[paulnord]

@haluguyz It requires a really short, quick blast of air.

[zaiasful]

how can i download this video ??

please reply as soon as possible.. i need this one.. thanks !! Ü

[paulnord]

@zaiasful Google the phrase "youtube video downloader". There are lots of methods out there. If you need a higher quality version for a class or something, let me know.

[aldarny]

you have to tell me who does this song!?

omg i cant find it anywhere. i saw this in my physics class today. i know the orignal is the Who. but who does this verison? thanks

[paulnord]

The Bates College Deansmen

[SobeDragon7]

That's what she said

[Raxerm]

Haha, epic blow-power.

[zaiasful]

haha

[Laurescence]

haha

[Laurescence]

very cool

[aldarny]

awesome! thanks man!