why?

[Robbo]

Who you calling fat Sukka? I may be plus-size, and I may be big-boned, but the last guy that called me 'fat' got a fore-arm smash to the neck. Are you just annoyed that I mentioned Loco found my remote?
Don't be like that Pete - There's more than enough Missy to go around.

Yeh apologies Missy, I hadn't taken into account the total absence of political correctness in my description of you as 'fat'.
Far be it from me to chance copping a forearm smash from your good lady self and so in future, I won't describe you as fat .... I'll describe you as 'delicately challenged'...how's that sound mama ?

 

[Tom37]

answer from a scientist


Would you fall all the way through a theoretical hole in the earth?
T. Fowler
Snohomish, Wash.

Mark Shegelski, an associate professor of physics at the University of Northern British Columbia, explains.

The simple answer is, theoretically, yes. First, let us ignore friction, the rotation of the earth, and other complications, and focus on the case of a hole or tunnel entering the earth at one point, going straight through its center, and coming back to the surface at the opposite side of the planet. If we treat the mass distribution in the earth as uniform, one would fall into the tunnel and then come back up to the surface on the other side in a manner much like the motion of a pendulum swinging down and up again. Assuming that the journey began with zero initial speed (simply dropping into the hole), your speed would increase and reach a maximum at the center of the earth, and then decrease until you reached the surface, at which point the speed would again be zero. The gravitational force exerted on the traveler would be proportional to his distance from the center of the earth: it's at a maximum at the surface and zero at the center. The total time required for this trip would be about 42 minutes. The speed of our traveler at the center of the Earth would be 7,900 meters a second. If there were no friction, there would be no energy loss so our traveler could oscillate into and out of the tunnel.

This trip could not take place in the real world for a number of reasons, including the implausibility of building a tunnel 12,756 kilometers long, displacing all of the material in the tunnel's proposed path, and having the tunnel go through both the earth's molten outer core and its inner core, where the temperature is about 6,000 degrees! It would be much easier to build such a tunnel in a small asteroid. Interestingly enough, for a tunnel that reaches from one point to another point on the earth's surface but does not pass through the center of the planet, the travel time would still be about 42 minutes. The reason for this is that although the tunnel is shorter, the gravitational force along its path is also decreased as compared to that of a tunnel that goes through the center of the planet, which means you would travel more slowly. Because the distance and the component of gravity decrease by the same factor, the travel time ends up being the same.

since objects are attracted to objects of a larger mass, you would probably fall for a while, then move to the side of your tunnel and have a very bumpy ride down the wall, until you reached the middle, where the earth is thickest... my theory anyway, would be interesting what you felt at the exact center, possibly an outward force from your core toward the walls of the tunnel.

heres a few more:

• do i see blue as the same colour as you do? because what i see as blue, you might see as yellow, for example
• do i percieve time the same as you? if i speeded up my reactions, would i infact be seeing things slower? and for some of the "slow" people, does time pass faster for them?

ps, if anyones said any of this before i appologise, i didnt read the last two pages

 

[MissyQ]

Yeh apologies Missy, I hadn't taken into account the total absence of political correctness in my description of you as 'fat'.
Far be it from me to chance copping a forearm smash from your good lady self and so in future, I won't describe you as fat .... I'll describe you as 'delicately challenged'...how's that sound mama ?

Yes, that sounds much better, thankyou. Good manners cost nothing, after all.

 

[Robbo]

since objects are attracted to objects of a larger mass, you would probably fall for a while, then move to the side of your tunnel and have a very bumpy ride down the wall, until you reached the middle, where the earth is thickest... my theory anyway...

Tom.....Tom..think about what you've just done, you have just rebutted Mark Shegelski, an associate professor of physics at the University of Northern British Columbia..........penny dropped yet?

 

[Tom37]

looks like cookie has it... the forces on atoms are dependant on quite a few things... but generally its the size of the neucleus... size matters

its all about the van der waals forces

 

[Tom37]

Tom.....Tom..think about what you've just done, you have just rebutted Mark Shegelski, an associate professor of physics at the University of Northern British Columbia..........penny dropped yet?

hey! i have a physics a/s level

 

[Robbo]

Yes, that sounds much better, thankyou. Good manners cost nothing, after all.

Thankyou Missy, your acknowledgemnt of my good manners is appreciated...you still putting on your belts with the aid of a boomerang ?

 

[Robbo]

hey! i have a physics a/s level

Hey Tom, then utilise it mate

 

[Fish]

ok, your two questions are great, and ones that i do know about... have you done NLP? my mum runs a company that teaches this sort of thing along with a load of others. its really really interesting. it may take a while to write the answers tom, so i thought id let you know theyre coming anyways

 

[MissyQ]

I gave up belts when Wall-Mart extended their range of elasticated-waist pants.
Basically, a 300lb woman has no need of belts. If I squeeze into something a belt is tha last thing I need...