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Science

pokerfan

(27,677 posts)

8. It's also the time (in minutes)

Reply to Ichingcarpenter (Original post)

Thu Jul 26, 2012, 08:53 PM

Jul 2012

to fall through the center of the Earth and reappear on the other side (assuming a frictionless, airless tunnel, and a bunch of other things).

It was one of the first differential equations I was ever asked to solve. It also works for any straight tunnel not going through the center provided its still frictionless. And it would also be the time for half of the lowest possible Earth if the atmosphere (and mountains) weren't in the way.

http://www.physicscentral.com/explore/poster-earth.cfm

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Highlight:

The Reason why the answer to the Universe is 42 [View all] Ichingcarpenter Jul 2012 OP

I have noticed this when the Sun is behind me and I'm watering my garden. Lint Head Jul 2012 #1

I don't believe so- digonswine Jul 2012 #5

Thanks! Great explaination. Now when I talk about it will sound like I know what I'm talking about. Lint Head Jul 2012 #10

There is one "part" of every rainbow that remains forever constant. TheMadMonk Jul 2012 #12

Hey, thanks. That was a lot I didn't know about Rainbows. And why 42 is important. freshwest Jul 2012 #2

That particular question didn't occur to the mice... targetpractice Jul 2012 #3

The mice were merrily manifestations Ichingcarpenter Jul 2012 #4

Who are you who is so wise in the ways of science? lumberjack_jeff Jul 2012 #6

LOL deutsey Jul 2012 #11

The reason why the answer is 42 is because it's not something else ... zbdent Jul 2012 #7

It's also the time (in minutes) pokerfan Jul 2012 #8

Origin of Dark Matter longship Jul 2012 #9