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No resistance in wires means limitless power lines, phone lines, batteries charge instantly..

> batteries charge instantly

Correct me if I'm wrong, but wouldn't there still be a bottleneck on the battery chemistry itself?

The Superconductor would also store the Energy. It could instantly release and take in energy. So this would also be the battery

> It could instantly release and take in energy.

In that case, can it be used to create new type of explosives?

Now how about some practical implications rather than theoretical?

MRI machines will get much better/cheaper. They use superconductors already, but are very hard and expensive to keep at their super-cold operating temperature.

Hoverboards.

Is this a joke or are you serious?

https://www.youtube.com/watch?v=7KtzyZKSuls

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