Follow the reluctant adventures in the life of a Welsh astrophysicist sent around the world for some reason, wherein I photograph potatoes and destroy galaxies in the name of science. And don't forget about my website,

Sunday 13 December 2015

Ask An Astronomer Anything At All About Astronomy (XII)

Some very difficult questions this week. See the Q&A page for the complete list.

1) How tall does a building need to be for you to be weightless on the top of it ?

2) Was Giodarno Bruno a scientist ?

3) Will we ever see a naked-eye supernova ?

4) Will gravitational waves give us advance warning of a supernova ?

5) Would a supernova at the distance of Alpha Centauri be bad ?

6) Are the physical constants really constant ?

7) Does ordinary matter become repulsive at high velocities ?

8) What is white matter ?
Some brain thingy.

9) What would happen if a black hole collided with a white hole ?
They wouldn't.

10) What causes inertia ?
A wizard did it.

11) Could we ever see right back to the Big Bang ?
Probably not.

12) Would we feel the blast from a supernova at the same time as we saw the explosion ?

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