We have all seen an inflated balloon whizz off through the air, if you let go after inflating it, and before you have tied a knot in the neck.These balloons …
These unusual balloons turn into apples! Inflate the balloon a small amount, then use a pen or other blunt object to poke the neck of the balloon all the way …
The Professor shows us how liquid helium is recycled at his university – and comments on reports that party balloons are causing supply problems. Footage from Brady’s Large Hadron Collider …