joules

The units of power are Watts = Joules / second, the unit of energy is Joules.

Depending on how you calculate it might be a factor of a couple up (just based on price) to a couple dozen (joules to joules).

Although calories and joules are indeed two measures of the same physical quantity (energy), there is a conversion factor of 4 between them: 1 calorie = 4.18400 joules.

Money is arbitrary, joules are not, and you can't plug your computer to a stash of dollars and have it run.

Combustion is generally pretty lousy, compared to electric, at converting joules into useful newtons.

E = mass x 9.81 x height So a 10kg mass at 2 meters can (@ 100% efficiency) provide 196 joules of energy.

The bucket of molten salt has a much higher energy density for cooking purposes, although you're right that this only becomes an overwhelming factor if you consider joules per dollar instead of joules per kilogram.

There simply won't be the joules for everyone to get about that way.

Unless I messed up the calculations, the four batch impact is carrying about 2 million joules.

The kinetic energy on impact would be 1800 Joules give or take.

Why would you bother expending vast amounts of joules to get more atoms until after you've consumed all the ones surrounding you right now?

It would be cool to see a graph of the watts/lumen efficiency of light bulbs over the last 50 years and of the joules/operation of CPUs.

As a side note, the usual nutritional calorie (or "Calorie", with uppercase 'C'), is actually 1000 calories, or 4184 Joules.

Anything that has an energy can be turned into a temperature by dividing by the Boltzman constant k_b (units: Joules/Kelvin).

Of these 20 Joules, 10 will be absorbed by the atmosphere and heat the earth.