sophanarith (October 11, 2008 at 7:10 pm)

1 hour?!?!?!?

ME1GTAIVFAN (October 5, 2008 at 6:35 pm)

F**K u sun. U suk a**. U probably cheated on that test cuz u dont sound like u cared wat u were doin.

lteman1992 (October 3, 2008 at 1:03 am)

GEEEKS heheheheh SHIT SON i got an A* in scinece but I still HATE GEEKS

1961arnie (October 2, 2008 at 10:16 pm)

with star a large as canis major how far would a earth like planet have to be from the star to contain homospicial life like our

mcdade10 (October 1, 2008 at 10:36 am)

Great subject, but a fucking boring lecturer. The fast forward was much appreciated and much used to escape the drawl and dross of a bad communicator. It seems that currently to be a lecturer communication skills are not necessary.

Brando1274 (September 29, 2008 at 5:28 am)

If the Milky Way galaxy was 100 miles wide, our entire solar system would be smaller than 1/8 of an inch. A light year (which is traveling at 186,000 miles per second in a straight line for one year) is 5.8 trillion miles, the milky way galaxy is 100,000 light years across (= 5.8 trillion X 100,000!!) our solar system in 3.6 billion miles in length...unbelievable!!

FieryPhoenix7 (September 21, 2008 at 8:02 pm)

Nice lecture!

ypbohyn (September 21, 2008 at 8:37 am)

lmao!

BigB0b145 (September 17, 2008 at 7:15 pm)

is this Hebrew?

rocknum (September 2, 2008 at 1:35 pm)

this is common stuff on google video :)