If one was to compress all the space between atoms and its particles in the earth what would the volume be?

Question

and what about the Universe how small would it schrink?

Answer 1

the density would reach about that of a neutron star, ie the density of an atomic nucleus, i.e. about 8E13 to 2E15 tons per cubic meter.

which compares to mean Earth density of 5.5 tons per cubic meter!

taking the average of the two values above, i.e. 1.04E15, gives a factor of 1.89E14 higher density than that of the Earth.

Take the Earth's radius 6.378E6 meters, this gives you a volume of 1.64E20 cubic meters.

Divide this by 1.89E14, you get 8.7E5 cubic meters for the volume of the very dense Earth. Multiply by (3/4ths), divide by pi, take the cube root.

That condensed Earth would have a radius of just 59.2 meters (194ft).


For the universe i'm not sure you can do the same, because a lot of it is the distances between the objects. But if you did apply the same ratios, you'd still end up with a universe about 2'600 light-years across - much smaller than the estimated 150 million light years, but still very, very large by human standards.

Hope this helps

Answer 2

The earth would be compressed to a size smaller than the head of a pin...

for the universe to be compacted that small would be taking us back to the 'big bang' where the entire universe was compressed into a point more than a millionth of the size of the head of a pin...

Answer 3

The volume would be about the size of 50,000,000 compacted garbonzo beans but you may not believe this but I am not a real scientist so I wouldn't know. Although I do wear white coats once in a while...ever so often I escape them

Answer 4

U would have fusion as a star and it would be very large .