Its weird though, because the pattern, while strongest when the laser hits itself, appears even when the beam is not touching itself but still being reflected off of the mirror.
I have a strong green laser, about 200 mw. I discovered this a long time ago and have wondered why it does this ever since...
I shine my laser at a mirror. It bounces back, with a brighter beam. That's not what confuses me. What confuses me is when I try to aim the bounceback beam to...
Yes, Arch, I understand that... but that seems to contradict something that an astute reader in another forum pointed out: That whenever the density of the universe is higher due to the observable universe becoming smaller, then that density itself should slow down the expansion of the universe...
I have been grappling with a big rip scenario that I've read on a forum and then expanded on in my own mind. In my opinion, the big rip seems to be the likeliest end to the universe. Universal expansion is happening at an accelerating rate, and it seems inevitable that this expansion WILL be...