My wife threw a surprise 40th birthday party because that me, a month early. Cake and also balloons were all over the place so i was having actually fun. As the Geeky dads stood around, us looked at the helium tank and also wondered how plenty of helium-filled balloons the would require to lift a toddler. Us were purely concerned <…>

My wife threw a surprise 40th date of birth party for me, a month early. Cake and balloons were anywhere the place so ns was having fun. As the Geeky dads was standing around, us looked at the helium tank and wondered how countless helium-filled balloons it would require to lift a toddler. We were completely concerned about their safety, of course.

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Helium (He) is the 2nd element on the periodic table, an inert noble gas and also a safer an option for balloons than highly flammable hydrogen (H). Helium is lighter than air and also able to lift about one gram every liter that gas. It has actually a number of industrial uses beyond being a typical at parties.

First, we should know just how much the boy weighs. Ours 2 year old is about 30 pounds (13,440g), clothed. Second, we should know exactly how much gas every balloon holds. Return the balloons room not perfect spheres, we'll consider 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 balloon.

The volume of a sphere is 4/3 * pi * r3, whereby r is the radius of the balloon. So very first determine the radius of the ball (the radius is half the diameter). Cube the radius (multiply that by chin twice: r*r*r), multiply by 4/3 and also then main point by Pi. If you space measuring her balloon in feet, that provides you the volume of the balloon in cubic feet.One cubic foot that helium will lift about 28.2 grams, so multiply the volume the the balloon by 28.2.Divide by 448 – the number of grams in a lb – to identify the number of pounds it deserve to lift.

Using the method above, each balloon include .524 cuft of helium will lift 14.77 grams, or 11.77 grams of payload. Phew, we carry out not have to be concerned about a boy lifting far from the party until we've fastened 1,143 balloons to your wrist.

We did have to keep the toddler away from the older kids who were setup a negative example by breath the helium native the balloons to raise the key of their voices. Maybe following time, we'll to fill Xenon balloons v gas to lower the pitch.

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(Do no breathe helium for much more than a couple of seconds, if at all. You don't want the contaminants from the tank in your lungs and you definitely don't desire to allow your mind seize increase for lack of oxygen. Never, ever before use the nozzle top top the tank for anything but filling balloons.)


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