e=mc**2 is not what uncle al wrote. He wrote m=e/c**2

the faster you go the more energy you have, so you mass more.

so its harder to go faster.

and faster.

I saw my kid's textbook, fifth grade. Two green balls

labelled H combine to make He. To power the Sun.

FAIL. Bethe explained that there is a carbon catalytic nuclear cycle

in our class of stars. And it takes 4 nucleons to make He.

He3 and trit/deut reactions are interesting too.