Gee everyone should have their own compressor. Even a little one. So many uses. Christmas is coming and some of us are really hard to buy for so put it on your list. I’ve got two already though.
I dunno though, the last time I had to get air in a tire on a trip, I had a screw in it. Something to check if you are losing air that fast.
Lucky me! I have no reason to know about pain killers at the dentist, and nor real interest in nitrous oxide as a recreational drug. I hope your dental issues are behind you aft that visit 3 weeks ago, @texases.
Actually, because of electron cloud contraction due to the positive charges in the nucleus, orbital configuration, etc., they aren’t nearly that different. The kinetic diameter of He is 260 pm (picometers), and 346 pm for O2.