Bohm: you are completely right the gravitational field [of the earth] is zero in the center
viviane: Utterly wrong on the gravity
viv, please explain what you mean. Show the math. What value is the gravitational field?
Posts by bohm
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280the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Viv: Your physics degee is worth less than the paper you wipe your arse with given your complete and apparent lack of understanding of basic physics.
lol too funny. Actually i was >90th percentile and it helped me get into a phd program lol.
Put up or shut up please. answer my above questions with something else than insults and tantrums
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
prologos: There is a lot of pressure at the very center of the Earth, no gravity.
Viv: Wrong. Show your math. If it was all pressure, why isn't it exploding?
...because the full system consists of a preasure gradient balanced by gravity, but obviously it is not well explained in simple terms since it is not stationary. I have no idea why this suggest the earth should explode, but i suspect you wont tell us the reasoning leading to that silly idea either Lol
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Bohm: you are completely right the gravitational field [of the earth] is zero in the center
viviane: Utterly wrong on the gravity
Bohm: meanwhile, in a textbook on relativity and cosmology: "the gravitational field inside a spherical homogeneous shell of matter is always zero."
Viv, you have been insisting other show you math throughout this thread. I have, and have quoted a textbook in support off my claim. Can you then tell me exactly what value the gravitational field of the earth is at the center? Please you for a change show us the math.
Btw, i did not selectively quote anything, please supply proof of this accusation.
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Bohm: you are completely right the gravitational field [of the earth] is zero in the center
viviane: Utterly wrong on the gravity
meanwhile, in a textbook on relativity and cosmology: "the gravitational field inside a spherical homogeneous shell of matter is always zero."
http://books.google.dk/books?id=BGYcivB1EtMC&printsec=frontcover#v=onepage&q&f=false
let me guess, they are moving the goalpost? Not showing the math? Just wrong? Only thinking in terms of math? Had their brains ruined by a degree in physics? lol
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Caedes, whops, misprint, i meant to write
a = -g r / R where a is the acceleration.
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Viv: yes i have been saying the same thing and moving the goalpost for three pages. Make as much sense as anything you have said lol.
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
prologos: the center of no gravity, or balanced gravity if you will.
Viv: Wrong again, prologos. Ask why the core is molten and hot.
if you ask me prologos, i would say it was mainly because of radioactive decay, and you are completely right the gravitational field* is zero in the center (in the idealized version).
* of the earth; not the moon, sun, mars or other dense elements present in this thread.
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
viv:You have said the same thing for three pages. You've been wrong for three pages, but consistently go
interesting how i can say the same thing for three pages yet you accuse me of moving the goalpost lol.
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280
the flood, mammoths, elphants, and food.
by Crazyguy inmy question is since it looks as though mammoths were alive after the flood and we know elephants are then how much food was needed to feed just these four animals for the time they were on the ark.
also was the ark, 500 feet long, big enough to hold the amount of food needed for just these 4 animals.. .
.
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bohm
Cades: this textbook discuss the shell therem and say the gravitational field is zero At p 24.
http://books.google.dk/books?id=BGYcivB1EtMC&printsec=frontcover#v=onepage&q&f=false
you can find a discussionon the difference with newtons and laplaces interpretation in most book on the history of science, iirc it is in b russels history of western phil. Great stuff.
Re. The terminal velocity, by the argument a few pages ago the magnitude of the acceleration fall linear By the shell theorem. Since we know the boundary conditions, 0 and g, the force F at r must scale as
F = -g r/R where R is the radius of earth. This is just hookes law so the properties follow from there.
the velociry at center is about 8000 m per s according to my pen an pencil addled computation. Sorry ipad version.