Wow! Wow! Wow! Somebody found some more helium in Tanzania! We were running out of helium, you know. Childrens' birthday balloons all over the country were coming down from the ceiling with no chance to replace them. Balloons float, or rise, because the helium inside them is lighter than air. If that is a bit complicated, imagine filling a birthday balloon with water, and tossing it up to the ceiling. It wouldn't float up, but the floor might. Helium is not used just for birthday balloons: it is also used to make super-conducting magnets, for cooling the space station, and for MRI machines. Those are all useful things to do, and even interesting, but it is easier to make a buck blowing up balloons at the supermarket. Hydrogen gas is even lighter than helium, and there is a lot of hydrogen, but hydrogen burns like a mad banshee, and helium doesn't. That is why the Hindenburg burned a big hole in the sky in 1937, and why the Goodyear ...
Social commentary, political opinion, personal anecdotes, generally centered around values, how we form them, delude ourselves about them, and use them.