Is There Anything That Occupies Space but That is Without Mass?
Most recent answer: 10/08/2011
Q:
Is there anything in nature that occupies space but that is without mass?
- Udaybhanu Chitrakar (age 65)
Kolkata, West Bengal, India
- Udaybhanu Chitrakar (age 65)
Kolkata, West Bengal, India
A:
Not that I know of.
Even things that have zero rest mass, such as photons, have some energy and you can always define an 'equivalent mass' , mequiv=E/c2 which affects and is affected by gravitational fields. The bending of starlight that passes nearby the sun is a well measured and predicted by the theory of General Relativity.
LeeH
Even things that have zero rest mass, such as photons, have some energy and you can always define an 'equivalent mass' , mequiv=E/c2 which affects and is affected by gravitational fields. The bending of starlight that passes nearby the sun is a well measured and predicted by the theory of General Relativity.
LeeH
(published on 10/08/2011)