All Questions
8
questions
4
votes
4
answers
96
views
How does potential energy increase without increasing matter?
It's a philosopher here - not a physicist, so please bear with me.
When I increase the potential energy of a spring by compressing it, I increase its mass according to special relativity.
But mass is ...
- 41
0
votes
1
answer
137
views
Matter/energy conversion?
What known physical processes convert matter into energy?
What known physical processes convert energy into matter?
- 201
0
votes
1
answer
54
views
Is there scientific evidence that point towards the cause of differently distributed matter through out the Universe? [closed]
If we know from discoveries from cosmology prove that ordinary matter and dark matter are still not enough to explain the structure of the universe and its distribution of matter. There should be a ...
- 13
2
votes
1
answer
5k
views
Does fire have mass and weight? [duplicate]
What exactly is fire, why isn't it defined by the three states of matter, and does it have mass, weight?
- 121
2
votes
2
answers
330
views
What happens during mass-energy conversion?
A mass is another form of energy. When a mass ceases to exist as 'matter', it exists as energy - in the forms of energy we generally know (light, heat). But is this so simple? When a mass exists in ...
19
votes
2
answers
11k
views
What did Tesla mean by "there is no energy in matter"?
I was reading "THE ETERNAL SOURCE OF ENERGY OF THE UNIVERSE, ORIGIN AND INTENSITY OF COSMIC RAYS" by Nikola Tesla, and he states:
"There is no energy in matter except that absorbed from the medium....
- 449
1
vote
2
answers
613
views
Can matter be created from energy? [duplicate]
The small, hot, dense early universe the size of an atom was made up entirely of energy, it wasn't until after the expansion began and the universe cooled down some of that energy began converting ...
- 283
1
vote
1
answer
165
views
Analogues of mass, space, or time? [closed]
I began wondering about this when working through this question: is there anything analogous to spacetime or matter? Both spacetime (note: most of what I know of about the concept of spacetime comes ...
- 235