The earthquake comes from an entire contential plate ramming into each other. ‘Sealing’ that fault (which is already mostly rock to rock) would do exactly nothing.

Force changes acceleration. So you need a force to accelerate an object from rest to a constant velocity. But at a constant velocity acceleration is zero and so is the force. There in energy in the object, energy from the initial force used to accelerate it, but it doesn't cost energy to keep moving.

Absence drag forces like air resistance an object can travel at constant velocity without any added force. It in fact it will take a force to slow it. Velocity is stored energy, but it doesn’t cost energy to keep moving (again absence drag forces). Think of something flying in space.

Because photons aren’t traveling through a medium of photons. It’s a propagating electromagnetic field.

Apparently the traces in the graph are fit high/mid/low countries, not individuals

High income here means like $30k per year.

I didn’t realize the integrated bracelet design on the left was that old. I thought it was ca. 1970s. Very cool. If anyone is interested in a modern version check out the Tissot PRX.

You might love the Tissot PRX. It’s a new version of this design. They make a smaller vintage style as well.

Sounds great that a technological solution was found, and then incentivized via world wide law. We would never give up refrigeration without an alternative, nor should we.