My mam threw a surprise 40th date of birth party because that me, a month early. Cake and also balloons were all over the location so ns was having fun. Together the Geeky dads stand around, us looked in ~ the helium tank and wondered how plenty of helium-filled balloons the would require to lift a toddler. We were purely involved <…>

My wife threw a surprise 40th birthday party because that me, a month early. Cake and balloons were almost everywhere the location so ns was having fun. As the Geeky dads stood around, us looked at the helium tank and wondered how countless helium-filled balloons that would take to lift a toddler. Us were completely concerned about their safety, of course.

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Helium (He) is the second element on the regular table, one inert noble gas and also a safer an option for balloons than extremely flammable hydrogen (H). Helium is lighter 보다 air and also able come lift about one gram per liter that gas. It has a variety of industrial uses past being a standard at parties.

First, we must know how much the kid weighs. Our 2 year old is roughly 30 pounds (13,440g), clothed. Second, we must know exactly how much gas every balloon holds. Although the balloons are not perfect spheres, we'll think about them as tantamount to spheres v a one foot diameter. Subtract 3 grams from the lifting force of each balloon to allow for the weight of the string and also balloon.

The volume the a round is 4/3 * pi * r3, wherein r is the radius that the balloon. So first determine the radius the the ball (the radius is half the diameter). Cube the radius (multiply that by itself twice: r*r*r), multiply by 4/3 and also then main point by Pi. If you room measuring your balloon in feet, that provides you the volume of the balloon in cubic feet.One cubic foot of helium will certainly lift about 28.2 grams, so main point the volume of the balloon through 28.2.Divide by 448 – the variety of grams in a pound – to recognize the number of pounds it can lift.

Using the method above, each balloon containing .524 cuft the helium will certainly lift 14.77 grams, or 11.77 grams that payload. Phew, we do not must be concerned about a boy lifting away from the party until we've fastened 1,143 balloons to your wrist.

We did have to keep the toddler far from the older children who were setting a negative example by breath the helium from the balloons to raise the key of your voices. Maybe following time, we'll to fill Xenon balloons through gas to reduced the pitch.

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(Do not breathe helium for an ext than a couple of seconds, if at all. You don't want the contaminants indigenous the tank in her lungs and you absolutely don't want to allow your mind seize increase for absence of oxygen. Never, ever before use the nozzle on the tank for anything but filling balloons.)


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