Even if the electricity used to charge an EV were 100% generated by fossil fuel power stations, it would still be more environmentally friendly to drive an EV than a conventional car. That's because … (View Post)

It's interesting that the improvements in the target and laser focussing have yielded the improvements that they have, but while the achievement of Q > 1 sounds a big deal, it's really just anothe… (View Post)

55% * 95% * 95% * 95% * 85% = 40% which is indeed not a million miles away for the 20% to 35% (according to Wikipedia) achieved by a petrol engine, but still better. And that would be for a 100% foss… (View Post)

Yes, it's just the same with computer stuff. ChatGTP has been banned from Stack Overflow for producing copious amounts of plausible-sounding, vaguely humorous, IT-flavoured bullshit. Only an idiot wo… (View Post)

For the sake of your sanity, don't do it. Six years ago, and bored with my current job, I did actually quit to start a teacher training course to become a Physics teacher. I have a PhD in Physics and… (View Post)