I wish I'd stayedd.. asleep todayyy..

Scientific conversions have got to be the most pointless thing in the world.

Question:
Convert 780 mmHg to atm.

1 atm = 760 mmHg

To perform the conversion, you divide 760 into 780.
My calculator says it's 1.026315789, but because of the rule of significant figures, this rounds off to approximately... 1.0 atm.
I decided to look further into this and it turns out that 1 atm can be any measurement of mmHg between 760 and 797. 798 mmHg converts to 1.05 atm, which would be rounded to 1.1 atm.

And I find all of this far more interesting than proving a gas law that half of the class already knows, a quarter of the class doesn't know, but will still do the experiment and continue not knowing, and that the rest of the class does not care about.

P.S. Total lives lost on Pacman due to internet lag: 1.