The single idea that makes all of this make sense is that cold is not a thing being added but heat being taken away and put somewhere else. Everything below…
The useful distinction is between materials that store energy in their shape and materials that store it in their disorder. A spring does the first and rubber does the second,…
The whole subject is fluid control. Too little and nothing appears; too much and it blots; and the difference between the two is a matter of fractions of a drop.…
Almost every physical process runs the way intuition expects. Hot things cool. Cold things warm. Something that starts closer to a target reaches it first.
Which is why this particular…
There is a general expectation that pain corresponds to damage. A large injury should hurt more than a small one, and a deep wound more than a superficial one.
A…
The useful way to think about any bond is as a chain with three links - surface, adhesive, surface - and a chain fails at whichever link is weakest. Here…