2006-07-25 17:53:58 · 20 answers · asked by likeitis 3 in Cars & Transportation ➔ Aircraft
One is sufficient, if it is big enough. You can calculate the amount of helium required to lift your weight easily enough: a standard volume (22.4 liters) of helium weighs four grams, while the same volume of air weighs 29 grams. So you get just over one gram of lift per liter of helium. If you weigh 70 kilos, you'll need about 70,000 liters. Which you can divide up between balloons any way you please -- but don't forget to add their weight to yours when doing the final calculation.
2006-07-26 09:28:02 · answer #1 · answered by Anonymous · 4⤊ 1⤋
Back in the 1970's a man tied a bunch of helium balloons to a lawn chair and lifted off. He carried a BB gun and was planning to shoot out some of the balloons to stop his accent. He became afraid to shoot out some of the balloons because he had risen so high and he didn't have a parachute.
He became an air traffic hazard for aircraft landing at LAX in Los Angles, CA. Several airline pilots reported seeing him. When he finally came down safely, the FAA and police arrested him. He was finally released with no fines because the FAA could not figure out what to charge him with.
I don't know about the myth buster attempt, but it was all over the news in the mid-late 1970's.
2006-07-27 01:17:10 · answer #2 · answered by pinelake302 6 · 0⤊ 0⤋
That study required appx 2000 balloons to lift a 50 lb person. Lawn chairs might be a little lighter than that.
2006-07-26 01:07:04 · answer #3 · answered by presidentrichardnixon 3 · 0⤊ 0⤋
Forget about the chair. Inflate 100. Hold 50 in each hand. Get onto the roof of a skyscraper and run as fast as you can. Jump off.
2006-07-26 00:58:10 · answer #4 · answered by ReneeF 2 · 0⤊ 0⤋
lift per balloon in pounds - (weight of chair + your weight) > 0
if the above formula answer is positive you have lift off. The more positive the greater the lift. The actual number of balloons depends on the lift provided by each balloon
2006-07-26 00:59:46 · answer #5 · answered by Daniel H 5 · 0⤊ 0⤋
**** myth busters their idiots just sit in your chair for about a 6 months with only consuming water take a couple of boxes of exlax by then u should have lost quite a lot of weight then sit a start filling your balloons and by the time u done ur either ******* dead or so high
2006-07-26 01:03:16 · answer #6 · answered by tiobaby2000 1 · 0⤊ 0⤋
Your weight
Multiply by The weight of the lawn chair
Multiply by
Volume of You+Lawn chair (Cm)
Multiply by 1 Balloon/cm
= ???
2006-07-26 00:57:39 · answer #7 · answered by Anonymous · 0⤊ 0⤋
An episode of mythbusters did it.
it took 50 giant weather balloons and about $2,000 of helium.
2006-07-26 00:56:51 · answer #8 · answered by Iomegan 4 · 0⤊ 0⤋
You should watch the show called MythBusters sometime....they tried it and it tooked hundreds and hundreds just to get a kid off the floor.
2006-07-26 00:56:04 · answer #9 · answered by Tammy O 4 · 0⤊ 0⤋
about 200 will do
2006-07-26 00:56:52 · answer #10 · answered by NeO Anderson 3 · 0⤊ 0⤋