I totally wanted to reply to this, but there isn't enough space in 140 characters.

There's this idea in physics of the order of magnitude (OOM) calculation, sometimes also called a back-of-the-envelope calculation. The idea is that you can calculate a rough number (OOM) for a very abstract concept with just making a few assumptions at the beginning and doing a very small bit of math. The classic story is that Feynman calculated the number of piano tuners in Chicago on the back of an envelope.

So let's say that a typical Batman cartoon episode takes place over a single day of real time. Let's further presume that in a typical episode, a villain breaks one window, and Batman breaks a second. If a repairman takes a half day to replace a window, then Gotham would need exactly one glass repairperson to account for the city's villains and heroes. Any additional window breakage would require either overtime on the first glass repairperson's part, or else additional glass repairpersons.

Originally posted on Dreamwidth. comment count unavailable comments there. Comment here or there.
asterroc: (doll)
Ah, finally it is a comfy 75ºF. I got home around 7pm at 55º, and it's now 12am at 75º, so that's Δ20ºF/5hr = 4º/hr = 1º/15min ... and I could now go on and look at my 2 heaters' wattages and calculate the power that went into the room temperature and figure out how lossy my bedroom is, but I don't feel like it. Yay math! Yay laziness! If anyone else feels like it, go ahead and I'll check your results. :-P

Ugh.

May. 3rd, 2006 06:00 pm
How will he even get on a plane?!

[Maunal] Uribe [1,200 lbs] made an impassioned plea for help earlier this year on Mexican television, saying he weighed a more normal 290 pounds until age 22 and did not know what happened to him.
...
No one has managed to find suitable scales for Uribe in years and estimates of his weight are made partly by tape-measure.


He kept fucking eating, that's what! Yeah I know obesity is a problem, but it's not all biological folks, it's a mental problem as well.

On the flip side, I think it's awesome that they have to do an order-of-magnitude estimate to determine how much he weighs - I presume they measure an average circumference, assume a spherical cow and density equal to water, and calculate!

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