Today: a physics lesson.
In quantum mechanics, the zero-point energy is the energy of the ground state of a system. Interestingly, this energy is not zero. For example, in the case of a simple molecule with two atoms, these atoms never cease vibrating back and forth – i.e. they always have energy.
Why do I bring this up on a Sunday morning?
Because children are like this.
Even in the middle of the night, when they are sleeping in your bed because they had a bad dream, they still squirm. They never stop squirming.
Not that I’ve had any experience with that in the last few hours…
I wonder – at what age do we learn to hold still?
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