- #1
fsoica
- 10
- 0
Hello !
In an article (Einstein's mistakes) published in 2005 in "Physics Today" by Steven Weinberg,
he says:
""""""
even so, einstein would still probably be unhappy with today's theories, because they are not unified with gravitation and because matter - electrons, quarks and so on - still has to be put in by hand
""""""
Can anyone tell me what the physicist meant with "matter still has to be put in by hand" ?
I'm not a physicist.
Tks.
In an article (Einstein's mistakes) published in 2005 in "Physics Today" by Steven Weinberg,
he says:
""""""
even so, einstein would still probably be unhappy with today's theories, because they are not unified with gravitation and because matter - electrons, quarks and so on - still has to be put in by hand
""""""
Can anyone tell me what the physicist meant with "matter still has to be put in by hand" ?
I'm not a physicist.
Tks.