Hydrogen was the future 50 years ago. It is the future now, it may be the future 50 years from now. It will never be the present. I have followed the...
Not very precise. The easiest way is to switch off everything electric except the stove and then read the meter. No cost and very precise, though not...
Yes, it happens. Sometimes intentional, like with that pallet of batteries. Sometimes by accident, when an astronaut at EVA activities loses a tool....