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Cough... conserveration of momentum... cough... splutter. |
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No we use energy to walk and that stop the earth producing heat, momentum is conserved when there is no force applied on the system |
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i think he's had one too many fish sandwiches... |
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one day you will understand haha
(go and check your physics again) |
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Surely a far more practical option is to have everyone in China jump off of a footstool simultaneously? If *practical* is the right word. |
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Fingerprints Of The Gods was a book I thoroughly enjoyed reading some years ago. Covers the 'ages' that have existed and are yet to come. Earth shifts, Pyramids, Atlantis and more are covered in this very interesting and thought-provoking weave. |
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Other than altering the length of the day, what would slowing the earths rotation actualy do? |
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The earth actually does slow it's rotation a second every year or two, because of wind blowing on mountainsides (I read this in the book "Faster" by James Gleick). Apparently, the people in charge of keeping time just tack an extra second on the clock. |
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I think a tanker ship sized atomic weapon would be a more spectacular idea. Actually halfbaked during the Cold War. |
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Since we're doing Ten Impossible Things Before Breakfast, I vote we switch rotational direction on a weekly basis and also move the north geomagnetic pole to Ethiopia. Ha! That'll put a spoke in their wheel, whoever 'they' are! |
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Robert one of the conditions of existence of life is a suitable lenght of day according to the living organisms. If this rotation slow in a considerably high rate, the difference in the temperatures of day and night would rise. Human race can only adopt this if this change takes very very long time. |
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And the guy who answered the question of jumping china could simply say that world and the things on it is a system and this system can only change its normal route if only a part of this system seperates from it. I guess nobody in china can jump so high. Think simple. |
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<google search think simple copy/paste>Hold her steady, tiller is balanced...NICE PRESSURE... Trim...TRIM!... If you can't pay attention, we'll get someone ELSE!!!... Now we're feeling fast... Lower and FASTER... boy, that new chute looks fine... There's the mark... we're almost making it on this jibe, and we've got a lane of clear air... Those boats on the other jibe are sailing away from the mark, and they're JIBING...I HEAR YOU... No, we're NOT at two boatlengths yet... All RIGHT! You've got it... Listen to that guy to leeward. He's LOSING it... DAMN it, that's three boats we've lost on this run. Must have been out of phase... One down, two to go, hold it steady... </google search think simple copy/paste> |
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...but I don't want the world to stop. Just the voices in my head. |
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I think what UnaBubba meant to say is that weather patterns generally move west to east, so even if wind on the mountains could have a measurable effect, it would be to accelerate the earth's rotation, not to slow it down. |
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can you wait till morning? |
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*ahem* a couple of points, which I have
numbered 1 to 3 for clarity:
(1) if everyone walks east, they will only
have an effect on the earth's rotation at
the moment they *start* walking. Once
we're all moving, we will have no
additional effect (ie, the earth will slow
a fraction at the start, but it won't keep
on slowing).
(B) When we stop
walking, we will have the opposite
effect, and the earth's rotation will be
restored to its former value. It is highly
likely that most people will, in fact,
want to stop walking as soon as they hit
a coast.
(iii) Even so, we can
figure out what would happen when we
all start walking. The angular
momentum of the earth is, by my
calculation, 7.1 x 10^33 kgm^2/s (this
assumes, for simplicity, that the earth is
of uniform density). The angular
momentum of a 70kg person walking at
1m/s on the earth's surface is 4.5x10^8
kgm^2/s. Assuming that there are 6
billion people and they all start walking
east along the equator, then their total
angular momentum will be 2.7x10^18
kgm^2/s. Hence, the earth's rotation
will slow by about 1 part in 2.6 million
billion. Hence, the earth's day will
increase by about 0.000000000033
seconds. |
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[thumbwax] that just sounds so horribly familiar... |
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[Basepair] you rock. That's why I love the HB. Even though it's a complete waste of your time to do so, you've done a few sums to show us the lunacy of the argument. I applaud you (very quietly so as to not lose energy to sound through hand clapping). |
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[neilp] - I am flattered :-) thank you. |
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I also like the idea that humans cannot live in an evironment with a drastically changing climate from day to night.
You underestimate your race. |
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I also like the idea that humans cannot live in an evironment with a drastically changing climate from day to night.
You underestimate us. |
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Besides, even if it stopped spinning that wouldn't be the end of the world, just all (or most) of the life inhabiting it. |
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FLASH: Here it (finally) is, the End Of The World! [link] |
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All Bakers are hereby encouraged to post all your as-yet
unposted ideas. This way, the next society to rise on Earth
will view our efforts en masse and give our organization the
respect it is due. |
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I always thought the end of the world happened about 4.53 billion years ago. The other end, of course, is less certain. |
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// view our efforts en masse and give our organization the respect it is due // |
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You need to take a bit more water with it, old boy ... |
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it's the full on caps that worries me! |
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it's the full on caps that worries me! |
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Any massive change in global zietgeist is the end of the world as humanity knows it. |
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We will bet a dollar you don't actually know what "zeitgeist" means, [wjt]. It's just a term you've heard, and you've been waiting desperately for a chance to use it in what you hope is a vaguely appropriate context. |
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It would be funny, if it wasn't so sad and pathetic. You need to get out more and meet people your own age. Or just people of any age. Or just homiothermic eukaryotes would be a start ... if you can't cope with that, what about trees? You could start by trying to make friends with a tree ... tgeir expectations are very low ... |
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He didn't say "zeitgeist", he said "zietgeist" - a natural misspelling of the Dutch "zietgeest", which would be something like "a spirit which sees". |
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