The Flat Earth Society

Flat Earth Discussion Boards => Flat Earth Q&A => Topic started by: glober on May 27, 2008, 09:23:24 AM

Title: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 09:23:24 AM
Thanks to pasco's ever-expanding line of experimental equipment, we now have the ability to measure gravitational forces at home! A fairly good replica of Cavendish's torsion pendulum experiment can be bought at pasco's website here:

http://store.pasco.com/pascostore/showdetl.cfm?&DID=9&Product_ID=1655&groupID=563&Detail=1

You'll have to buy their laser module and a couple accessories as well, but when you're all done you have a device that not only show gravity at work, but can measure G within 5%! Just plot Force vs. Distance, admire the nice inverse-square relationship. Square the distance and plot again and admire the nice linear relationship. Measure the slope of the second plot and BAM! 6.6 +/- 0.3 m^3/(kg * s). The device will be right in front of you to scrutinize at your discretion.

Pasco. Converting FE'ers, one retard at a time.....
Title: Re: Finally, discover gravity in your own home
Post by: Kasroa Is Gone on May 27, 2008, 09:37:19 AM
Shame it's not a force!
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 09:51:07 AM
OK....if you want to get all non-classical on me...

The effects consistent with a gravitation force can be measured. As for there being a "force of gravity" GR theorizes there is no such force, only a local distortion in the space-time metric.

Doesn't matter.....just knowing that newtonian gravitation is an adequate model for the way gravitation behaves near a large mass (like the earth) is enough to refute many claims on this forum.
Title: Re: Finally, discover gravity in your own home
Post by: Colonel Gaydafi on May 27, 2008, 10:03:56 AM
Its not adequate if its wrong
Title: Re: Finally, discover gravity in your own home
Post by: lived_eht_asan on May 27, 2008, 10:05:58 AM
Also, acceleration works just fine, thank you.
Title: Re: Finally, discover gravity in your own home
Post by: Kasroa Is Gone on May 27, 2008, 10:11:23 AM
Job's a good'un guys. Same time tomorrow?
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 12:36:15 PM
Its not adequate if its wrong

This device can prove its adequacy. If the newtonian gravitation model can predict the perceived force on the torsion pendulum then it is adequate.

Also, acceleration works just fine, thank you.

The FE model only allows for a "downward" acceleration. This device will show gravity working in a variety of directions.
Title: Re: Finally, discover gravity in your own home
Post by: lived_eht_asan on May 27, 2008, 12:43:01 PM

The FE model only allows for a "downward" acceleration. This device will show gravity working in a variety of directions.

And which direction do you fall?  I do believe it is somewhere in the downward direction of this flat earth.
Title: Re: Finally, discover gravity in your own home
Post by: physics101 on May 27, 2008, 12:49:27 PM
$1600 for that damn thing?! There has to be an easier way, or less expensive thing to buy.
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 12:50:04 PM

The FE model only allows for a "downward" acceleration. This device will show gravity working in a variety of directions.

And which direction do you fall?  I do believe it is somewhere in the downward direction of this flat earth.

you may think that...until you experience a weighted ball "falling" sideways with this device
Title: Re: Finally, discover gravity in your own home
Post by: lived_eht_asan on May 27, 2008, 12:53:47 PM

you may think that...until you experience a weighted ball "falling" sideways with this device

I see, so somehow the device multiplies gravitons to a dangerous force causing the balls within to strike me?

Seriously though, just how does this prove flat earthers are "retards"?
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 01:05:18 PM

you may think that...until you experience a weighted ball "falling" sideways with this device

I see, so somehow the device multiplies gravitons to a dangerous force causing the balls within to strike me?

Seriously though, just how does this prove flat earthers are "retards"?

Almost correct......actually gravitons will strike your balls, multiplying them into a dangerous force. Two points for effort, though. As for the tard reference, I have nothing to do with that. It's just the Pasco motto.
Title: Re: Finally, discover gravity in your own home
Post by: lived_eht_asan on May 27, 2008, 01:08:42 PM
......actually gravitons will strike your balls

That is one helluva an odd statement.  For more reasons than three.

So we've established then that acceleration works just fine on our flat earth?  I'm sure I could dig up an acceleration kit demonstrating its efficacy at explaining attraction to an accelerating body like the Earth.  Or one could simpy step off a chair and observe the Earth accelerating upwards toward ones face.
Title: Re: Finally, discover gravity in your own home
Post by: Taters343 on May 27, 2008, 01:11:57 PM
Or one could simpy step off a chair and observe the Earth accelerating upwards

I remember some old thread where Tom claimed to do this.
Title: Re: Finally, discover gravity in your own home
Post by: physics101 on May 27, 2008, 01:14:59 PM
I remember that too, I was hoping he (Tom) would jump off a building for further tests.
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 01:16:44 PM
BTW, you can measure the mass of the earth with this device as well...although this requires an inertial frame of reference unlike that of an upwards-accelerating FE.
Title: Re: Finally, discover gravity in your own home
Post by: Taters343 on May 27, 2008, 01:18:12 PM
Mass of the earth is infinite, it has to be because the ice wall is infinite.
Title: Re: Finally, discover gravity in your own home
Post by: lived_eht_asan on May 27, 2008, 01:21:37 PM
That is one possibility, the infinite plane theory.
Title: Re: Finally, discover gravity in your own home
Post by: Colonel Gaydafi on May 27, 2008, 01:23:32 PM
I remember that too, I was hoping he (Tom) would jump off a building for further tests.

He did, thats when he discovered that he can fly. Flying robots are all the rage these days
Title: Re: Finally, discover gravity in your own home
Post by: physics101 on May 27, 2008, 01:24:16 PM
 I hope he flies into a power line.
Title: Re: Finally, discover gravity in your own home
Post by: Taters343 on May 27, 2008, 01:25:02 PM
I hope he doesn't crash in to my imaginary carrier pigeon!
Title: Re: Finally, discover gravity in your own home
Post by: physics101 on May 27, 2008, 01:25:51 PM
I hope it's a big ass pidgeon so Tom dies (and the pidgeon lives of course  ;D)
Title: Re: Finally, discover gravity in your own home
Post by: Taters343 on May 27, 2008, 01:29:53 PM
It weighs about 20 thousand pounds, but it is the size of the average canary.
Title: Re: Finally, discover gravity in your own home
Post by: Jeebs on May 27, 2008, 01:41:12 PM
Thanks to pasco's ever-expanding line of experimental equipment, we now have the ability to measure gravitational forces at home! A fairly good replica of Cavendish's torsion pendulum experiment can be bought at pasco's website here:

http://store.pasco.com/pascostore/showdetl.cfm?&DID=9&Product_ID=1655&groupID=563&Detail=1


Is this device accurate enough to show the difference in the gravity experienced between higher and lower altitudes?
Title: Re: Finally, discover gravity in your own home
Post by: glober on May 27, 2008, 01:46:13 PM
Thanks to pasco's ever-expanding line of experimental equipment, we now have the ability to measure gravitational forces at home! A fairly good replica of Cavendish's torsion pendulum experiment can be bought at pasco's website here:

http://store.pasco.com/pascostore/showdetl.cfm?&DID=9&Product_ID=1655&groupID=563&Detail=1


Is this device accurate enough to show the difference in the gravity experienced between higher and lower altitudes?


It measures gravity between two ball-shaped masses, not between the earth and a mass. To best answer your question, you CAN calculate the force on the torsion spring (that force is REAL, unlike the force on the mass itself) for different distances between the masses, which is analogous to measuring the earth's pull on an object at different altitudes.
Title: Re: Finally, discover gravity in your own home
Post by: TheEngineer on May 27, 2008, 03:17:59 PM
BTW, you can measure the mass of the earth with this device as well...although this requires an inertial frame of reference unlike that of an upwards-accelerating FE.
Where would you get this inertial frame of reference on the RE?
Title: Re: Finally, discover gravity in your own home
Post by: TheEngineer on May 27, 2008, 03:19:09 PM
It measures gravity between two ball-shaped masses
I'm pretty sure it does nothing of the kind.  I'd say it measures the torsion in the wire.
Title: Re: Finally, discover gravity in your own home
Post by: Ski on May 27, 2008, 04:18:16 PM
Mass of the earth is infinite, it has to be because the ice wall is infinite.

Maybe. I'm still not sold on the infinite plane model.
Title: Re: Finally, discover gravity in your own home
Post by: Space Cowgirl on May 27, 2008, 04:33:18 PM
They want $1600 for a device that measures the gravity between your balls?
Title: Re: Finally, discover gravity in your own home
Post by: Taters343 on May 27, 2008, 05:26:21 PM
They want $1600 for a device that measures the gravity between your balls?

I lol'ed
Title: Re: Finally, discover gravity in your own home
Post by: cmdshft on May 27, 2008, 09:39:30 PM
They want $1600 for a device that measures the gravity between your balls?

lol

You can do the same thing in your basement with a bucket, some wire, and some clear covering, on a shiny, flat leveled surface. Way cheaper.