schroedingershat, 11 months ago It’s a milligram of tungsten and a few grams of glass and steel. On the other hand they’re only on a few minutes a day. Not really something to be concerned about either way.
It’s a milligram of tungsten and a few grams of glass and steel.
On the other hand they’re only on a few minutes a day. Not really something to be concerned about either way.