Thanks to quantum - mechanical effects, below a certain critical temperature some materials become superconducting: electrons flow through them unhindered by
the usual electrical resistance.
Not exact matches
Superconductivity holds great promise for delivering energy without the
usual losses due to heat and
electrical resistance that we find with regular power lines, but it is notoriously tricky to achieve.
If you BIA test after eating a large meal,
electrical resistance will be lower than
usual and thus you'll register leaner than you actually are.