2006-08-13 13:03:55 · 15 answers · asked by harrislapiroff 1 in Science & Mathematics ➔ Physics
OK, just for fun, i''l answer this.
at sea level, one cubic foot of helium can lift 0.067 pounds. i weigh 150 pounds. i would need at least 2239 one cubic foot balloons full of helium to achieve buoyancy.
then i would need more one cubic foot balloons to lift the weight of the string.
http://howthingswork.virginia.edu/page1.php?QNum=1492
2006-08-13 13:31:05 · answer #1 · answered by warm soapy water 5 · 3⤊ 0⤋
This exact question was addressed in this forum not long ago. You get about one gram of lift per liter of helium, so to lift a typical person would requre balloon(s) with a capacity of 70,000 liters, plus additional capacity to lift the weight of the balloon(s).
2006-08-13 13:15:00 · answer #2 · answered by Anonymous · 1⤊ 0⤋
It takes about 50 balloon
2016-03-27 00:34:11 · answer #3 · answered by ? 4 · 0⤊ 0⤋
There are groups of people who actually do this. It takes a hell of a lot of balloons. And some good safety gear.
2006-08-13 13:27:39 · answer #4 · answered by iandanielx 3 · 1⤊ 0⤋
In 1982 a man attached weather baloons to a lawn chair and reached 16,000 feet. You can read it about it here:
http://www.odysseyballoons.com/pelicans/lawnchair.html
and here:
http://en.wikipedia.org/wiki/Larry_Walters
2006-08-13 13:28:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋
10 million
2006-08-13 13:05:41 · answer #6 · answered by Night visions 6 · 0⤊ 1⤋
It would depend on the person's weight... I actually saw it done on the Letterman Show.
2006-08-13 13:06:38 · answer #7 · answered by M L 5 · 0⤊ 1⤋
Two big hilarious handfuls, like what I see in cartoons and the movies.
2006-08-13 13:09:40 · answer #8 · answered by Richie D 3 · 0⤊ 1⤋
That would depend intirely on how heavy the person was.
2006-08-13 13:09:41 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Is this Eric the Midget??
When are you gonna fly, dude?
2006-08-13 13:07:04 · answer #10 · answered by Anonymous · 0⤊ 1⤋