Re: Tesla scams.
Did you explain to him that, in effect, EVs DO have alternators in the wheels?
Vehemently no; we wanted him to get out of our hair (and lair) as quickly as possible without resorting to violence, so any info that he could have misinterpreted as "See, it can work (and thus, it will)" was out of the question.
We stuck with demoing a bike dynamo, and that even with no load but the dynamo engaged the bike wheel stopped quicker after giving it a shove, and that the dynamo got warm when actually loaded. "That is energy that has been put into the dynamo, but is not coming out as electricity. That bit is what's called conversion losses, and every bloody process that converts energy from one form into another suffers such losses. Hence, a perpetuum mobile is impossible"
This also reminded me of someone on a computer forum who had tried to get his UPS to provide longer runtimes by plugging its input into one of its outputs during a power cut. Alas, the UPS runtime got abruptly and markedly shorter instead.
Biting the hand that feeds IT
