tumbledry

thermodynamics

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Chlorine

Mykala knows that, every single time I open a bottle of tap water that has been sealed for a while, I’ll comment how “isn’t it interesting that it smells like chlorine, it must have reached equilibrium between the chlorine in the water and the chlorine in the air.” Every single time.

Continued

A 128-bit storage can address a rather lot of memory

A 128-bit storage can address a rather lot of memory - I can’t explain the boiling oceans thing myself, so onwards with a quote:

To operate at the 10E31 bits/kg limit, however, the entire mass of the computer must be in the form of pure energy. By E=mc2, the rest energy of 136 billion kg is 1.2x10E28 J. The mass of the oceans is about 1.4x10E21 kg. It takes about 4,000 J to raise the temperature of 1 kg of water by 1 degree Celcius, and thus about 400,000 J to heat 1 kg of water from freezing to boiling. The latent heat of vaporization adds another 2 million J/kg. Thus the energy required to boil the oceans is about 2.4x10E6 J/kg * 1.4x10E21 kg = 3.4x10E27 J. Thus, fully populating a 128-bit storage pool would, literally, require more energy than boiling the oceans.