The first question was, how many generations before the glider recreates itself in the same

orientation, but one cell down and to the right?

We can see this just by

clicking Go 1, 2, 3, 4. So 4 was the correct answer.

And notice if you have the

Edit button clicked, you can

keep clicking Go and it skips

the step where it shows you

the green highlighted cells.

The second question is, what happens when two gliders in this pattern collide?

Let's see, let's just click

through it.

And you can see in five time steps,

they annihilate each other.