A thing has mass in space.how we can measure mass in space?
We are provided with the mass of universe i.e. 1055 but the question is how do we measured that because we know that its mucn of the space so how can we measure it?
We studied in our earlier classes:
Anything that occupies space and has mass is called matter.
However light doesn't occupies space and do not have mass. Then why is it called Matter?
In the example of a perfectly rigid body, as the points are of same material then can we take another thing common in the points as mass?