Posts by bohm

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Viv: i dont understand why you are so rude. yes, wikipedia use the word gravity (accurately) and i expressed the same using the word acceleration. Now you seem to claim i am wrong, or wikipedia, or both. why? I am very puzzled. You insist other should support their every claim with math, but you refuse to substantiate your point with anything but a snarl.

this is not the behaviour of an intelligent person pointing out a mistake, but of someone who cannot admit a mistake.

Viv: And you yourself brought up the shell theorem and talked about the radius of objects. Why do you have the expectation that I would explain it to you when you brought it up and pretended you knew what you were talking about?

i only expect you to tell me what you think i have done wrong. You hinted this had something to do with a radius and i asked the radius of what? I asked because as you are hopefully aware the shell theorem is independent of the radius of the object, that is, the acceleration of an object inside a hollow sphere is zero Independent of the radius of the sphere.

80

" Do not ask permission, just play the video--" service meeting instructions.

by prologos in

jw
friends

this statement startled me out of the pleasant mental absence during this week's "service" meeting.. pushing the org.

explanation: "the listener has time to interrupt, if they want--" .

together with an incredible boring "study" of an hand held device, or it's stored content, i will be a totally new crop of orgies at the halls,.

bohm

Jgnat: really? guess i blew my chance to be married to an unfamiliar japanese chick..

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Viv: did i write gravity? try and read my post. Where do you think i am wrong? Be specific. What was your point about the radius?

The lady doth protest to much...

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Viv: BTW, for those about to say "B-b-b-but Shell Theorem!", it's got a LOT to do with the radius of the objet under questions. It's not as simple as reading Wikipedia.

the radius of which object? what part of wikipedia is wrong?

Please dont shift the goal post by introducing qm or gr.

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Viv: So, even using classical mechanics, it's not, as you said, "no acceleration in a hollow sphere". Yeah, I did some gravitational math earlier on the thread. It's not very complicated.

we agree the shell theorem is correct right? We also agree the shell theorem sayes there is no acceleration of an object inside a hollow sphere? ( point 2)

I got no idea what you object to to be honest....

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Update: I tried to work it out and it does seem like the difference in density of the earth when one compares the mantle with the inner parts. So the correct answer is the acceleration of an object will properly increase slightly as one pass down a mineshaft and then begin to decrease at some depth; This does not affect my two previous comments since they were made on the assumption of uniform density, specifically, the shell theorem still holds which was the point of my comment.

This is not to say the shell theorem support the idea of a "water canopy" for several reasons:

1) If we assume the canopy is hard sphere around the earth it would need to be very strong indeed to withstand the gravitational pull and the tidal effects from the moon and sun. Assuming this, it would be in the unfortunate situation not to be gravitationally stable, that is, any small change in velocity of the shell (by e.g. a meteor impact) would cause it to drift into the earth.

2) If it was instead not rigid and rotating, it would eventually collapse to something resembling the rings around saturn or a new small moon, depending on it's height above the surface.

80

" Do not ask permission, just play the video--" service meeting instructions.

by prologos in

jw
friends

this statement startled me out of the pleasant mental absence during this week's "service" meeting.. pushing the org.

explanation: "the listener has time to interrupt, if they want--" .

together with an incredible boring "study" of an hand held device, or it's stored content, i will be a totally new crop of orgies at the halls,.

bohm

Darksilver: Except for now, two years later (almost a lifetime in digital years) we've reached (and passed!) the 'critical mass' needed for acceptance of viewing vids on cells

The problem is not if the videos are "hip", the problem is it is a very unusual situation. If a person walk up to you and ask you: "Do you wonder what happends when you die?" then you might be inclined to discuss the point with him supposing one find the question interesting. On the other hand, if he proceed to read from a magacine (which I find equivalent), you are obviously no longer having a conversation and I think many people would then think: "Why do i have to hear what SOME people obviously WANT this guy to tell me?". The "read-from-your-magasine"-witnessing has been discussed several times here and many thought it was a bad way to do it even when in.

Then again i could be wrong. I can only say I thought it was very odd when the asian couple did it, and worse, they kept shaking the screen and the sound was hard to hear. I completely lost interest at that point.

280

the flood, mammoths, elphants, and food.

by Crazyguy in

my 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.. .

.

bohm

Bohm: in other words no acceleratin in the center of earth and less acceleration in a mineshaft. Also no acceleration inside a hollow sphere. Hope that clears something up.

Viviane: That's not true. You yourself just proved it by saying "less acceleration ina mineshaft".

Well actually it is true (It is known as the "shell theorem" which I was not aware of when I wrote my post) and you can find a proof in any elementary book on classical mechanics, c.f. wikipedia. I will be happy to help you with the required integration if neccesary:

http://en.wikipedia.org/wiki/Shell_theorem

Isaac Newton proved the shell theorem [1] and said that:

A spherically symmetric body affects external objects gravitationally as though all of its mass were concentrated at a point at its centre.
If the body is a spherically symmetric shell (i.e., a hollow ball), no net gravitational force is exerted by the shell on any object inside, regardless of the object's location within the shell.

Now, so returning to the mineshaft, if we assume the earth is a body of uniform density the gravitational pull at a radius r will (per 1 of the shell theorem) scale as the mass (proportional to r^3) divided by square of distance (newtons low of gravitation) and so scale as r. Ofcourse if you make assumptions on the density of earth this may affect the result, however my comment was discussing the idealized situation and at any rate I wont look up the density of the mantle compared with the inner parts of the earth now.

34

Is truth relative?

by Pinku in

seeing various/changing laws on the same action, some may feel truth is relative, and there is no such thing as right and wrong.. yet a closer look at beneath the details would show that truth is not relative, and everyone knows what is right and wrong.. driving in the night by putting the head-light off is wrong, but right when country is in war with another country.

behind both the conflicting laws, the truth is same: safety and welfare of the people.

this is true of notion about what is right and wrong:.

bohm

Pinku:

Whatever contributes to the welfare of all is right.
Whatever contributes to the harm to person/s is wrong.

If these are inborn in humans, and if we for a moment entertain the thought the spirit world may only be the imagination of humans, would it not follow the ideas from the spirit world would reflect the inborn ideas in humans, namely the above two ideas?

80

" Do not ask permission, just play the video--" service meeting instructions.

by prologos in

jw
friends

this statement startled me out of the pleasant mental absence during this week's "service" meeting.. pushing the org.

explanation: "the listener has time to interrupt, if they want--" .

together with an incredible boring "study" of an hand held device, or it's stored content, i will be a totally new crop of orgies at the halls,.

bohm

it is as if jehovahs chariot just had video for the kids build into the seats!

By the way, there is nothing new to this. About two years ago I was approached by an asian looking couple who peddled some strange version of christianity where god was a women or somesuch. When I turned out to be a hard sell, they tried to pacify me with a video on an ipad. I can't see how this will work well, the situation of looking at a video on a small screen someone is shaking is just so out of place..