#2776: Crystal Ball

|< First < Prev Random Next > Last >|
They often use ball lenses to collect light at the ends of optical fibers, so when you look stuff up on the internet you're actually scrying through a crystal ball.
They often use ball lenses to collect light at the ends of optical fibers, so when you look stuff up on the internet you're actually scrying through a crystal ball.
Original on XKCD ExplainXKCD
Back to Index