Ian Morison, professor at Gresham College, explains, why we haven’t had visitors from the future yet.
This part is the funniest part of the lecture. However, if you want to watch the full program, visit Fora.TV.
The “bad astronomer”, Phil Plait, explains the Big Bang Theory to kids.
This physics teacher knows hot to spice up his lecture.
I must admit, I love it when Neil deGrasse Tyson talks about how the universe is trying to kill us.
The presentation contains graphic images between 3:30 and 4:00, so you might want to skip that part.
And again, Neil deGrasse Tyson talks about a doomsday scenario: Planet X.
Don’t you laugh! You were a sperm too! — Jeff Yalden, 2006 Mascenic Regional High School Graduation
Don’t you laugh! You were a sperm too!
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