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One of the first things I teach students on the first day of energy policy classes I have taught is how energy density works, and how a battery is a device to store energy at high densities. But at a certain point, when you increase the energy density enough, we don’t call it a battery any more. We call it a bomb.

> One of the first things I teach students on the first day of energy policy classes I have taught is how energy density works, and how a battery is a device to store energy at high densities. But at a certain point, when you increase the energy density enough, we don’t call it a battery any more. We call it a bomb.

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[–] • 2 pts

Electric vehicles are safe, effective and green. Electric vehicles are safe, effective and green. Electric vehicles are safe, effective and green. Electric vehicles are safe, effective and green.

[–] • 1 pt (edited )
[–] • 0 pt

I'm noticing a trend. Many things are no longer safe and effective or green.