How could you explain the Foucault Pendulum ?

How could you explain the observations of the Foucault pendulum slowly rotating with Earth's rotation, if you are on a flat non-rotating Earth ?

How does that pendulum continuously sway?

It doesn't need to swing continuously.  An unpowered pendulum can swing for 15-20 minutes or more, which is enough time to see measurable deflection.

How long does an unpowered pendulum swing, markjo?

A high-quality unpowered pendulum could swing for a few hours (the first one, at the Paris Panthéon, could swing for 6 hours). In only 5 minutes, the effect is already observable.

A frictionless string with a mass in a near perfect vacuum will swing for a very long time. Conservation of energy will let it swing untill every kalorie is transfered to the environment. Put it on the north pole and I bet it will swing continously and rotate 360 degree in 24 hours. Put it on the south pole and I bet it would rotate 360 degree the other way in 24h

This experiment was done by NTNU Norwegian Technology and Natural science Univercity. And I'd like to see how this works with the so called flat earth model.

How long does an unpowered pendulum swing, markjo?

Theoretically, in a vacuum and with no friction, for ever. The heavier the pendulum is, the harder it is for it to stop due to the friction from the string and the air resistance, so a very heavy pendulum, like the ones used for demonstration, can run for a very, very long time.

Flatguys c'mon this is a very interesting phenomenon, you can't just ignore it, will someone explain it with flat earth reason please?

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Just a correction, this has nothing to do with the coriolis effect.

Quote from: XaeXae on September 13, 2015, 01:23:26 PM

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Just a correction, this has nothing to do with the coriolis effect.

Yes, two different phenomenon but caused by the same thing, which is earth's shape and rotation.

Quote from: XaeXae on September 13, 2015, 01:23:26 PM

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Just a correction, this has nothing to do with the coriolis effect.

Both yes and no. It gives the same observational phenomenon but the reasons are different, except for one reason; the spin of the earth.

Quote from: Definitely Not Official on September 13, 2015, 01:44:49 PM

Quote from: XaeXae on September 13, 2015, 01:23:26 PM

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Just a correction, this has nothing to do with the coriolis effect.

Both yes and no. It gives the same observational phenomenon but the reasons are different, except for one reason; the spin of the earth.

It's not really the same observational phenomenon. One deflects objects changing latitude and the other "deflects" pendulums.

Quote from: Master_Evar on September 14, 2015, 01:58:26 AM

Quote from: Definitely Not Official on September 13, 2015, 01:44:49 PM

Quote from: XaeXae on September 13, 2015, 01:23:26 PM

Look, there is ALWAYS a Foucault Pendulum near where you live : https://en.wikipedia.org/wiki/List_of_Foucault_pendulums

So you can't contest by saying "this bullsh*t never existed" or "it's a conspiracy and the pictures are fake", it exists.

And in the South Hemisphere, they don't rotate the same way (isn't it the perfect proof of Coriolis effect ?)

So you flatearthers would have to explain it, and not only explaining all of this is fake

Just a correction, this has nothing to do with the coriolis effect.

Both yes and no. It gives the same observational phenomenon but the reasons are different, except for one reason; the spin of the earth.

It's not really the same observational phenomenon. One deflects objects changing latitude and the other "deflects" pendulums.

Yeah, not reaally the same phenomenon, but kinda similar. No direct connection between them in any case.

I suppose if you went with a model of a flat Earth where the flat "plate" of the Earth was turning like a record on a record player, with one rotation every 24 hours, you might get some similar effect with the pendulum floor moving under the pendulum bob...but it wouldn't be the same as what we'd see on a rotating sphere.

Of course, most Flat Earthers believe in a fixed Earth. But a flat plate Earth rotating like a record on a record player, turning once every 24 hours while the Sun and Moon where (at least somewhat) stationary would be indistinguishable from a fixed flay Earth with the Sun, Moon, and stars rotating above it. (And if you put the stars on a *sphere* as opposed to a dome, and that sphere also turned, you could explain the differences in the constellations that we see in the Summer as opposed to the Winter. (Though people like Jeranism will claim that the constellations *don't* change throughout the year, LOL.)

And as for Foucault's Pendulum, the FE folks will just claim that the pendulum is "rigged", which would add people who work at or volunteer at planetariums (like myself) in on the "conspiracy"..

But there is nothing stopping Flat Earther's from building their own Foucault's Pendulum, and testing the results for themselves...

Even in a perfect vacuum with a friction-free bearing at the top of the string/wire, would'nt the the gravitational force of the earth eventually bring the pendulum to a halt, so that the mass of the pendulum is pointing to the center of the earths gravitational mass?

Even in a perfect vacuum with a friction-free bearing at the top of the string/wire, would'nt the the gravitational force of the earth eventually bring the pendulum to a halt, so that the mass of the pendulum is pointing to the center of the earths gravitational mass?

I would have *thought* that eventually simply the pull of gravity would eventually slow it down or stop it - but from what I could find out online, no, that would not be the case, in a perfect vacuum, with a perfectly friction-less pivot, the pendulum would happily go on swinging forever, because the kinetic energy on the upswing would all be converted into gravitational potential energy at the top of the swing, and then back into kinetic energy on the down-swing.

However, if you tried to use this as a power source, even by just making the pendulum magnetic and passing it through a magnetic field, to generate a current, the pendulum would eventually slow down and finally stop, because some of the energy is being converted into work, and every time it passes through the magnetic field, it would be slowed down a little tiny bit.

Thanks for explaining and clearing that up for me.

How could you explain the observations of the Foucault pendulum slowly rotating with Earth's rotation, if you are on a flat non-rotating Earth ?

The trick in the whole con job , is the false hood promoted theory,  that a pendulum swings back & forth in a straight constant line. It dosen't. 

Quote from: XaeXae on September 10, 2015, 02:46:10 PM

How could you explain the observations of the Foucault pendulum slowly rotating with Earth's rotation, if you are on a flat non-rotating Earth ?

The trick in the whole con job , is the false hood promoted theory,  that a pendulum swings back & forth in a straight constant line. It dosen't.

Can you provide any evidence that a pendulum would not swing straight forth and back if no other forces was acting upon it?

Take a poll stand it up vertical balanced. Now lean it over a little . Is it going to stay balanced or topple over.
Their is your answer.  A pendulum does not swing back & forth in a straight line . That the true demonstrated  scientific finding of  foucault  pendulum . Not the earth rotating under it.

Here we go again. It took 43 pages of total snot for Charlie to shut up last time.

Take a poll stand it up vertical balanced. Now lean it over a little . Is it going to stay balanced or topple over.
Their is your answer.  A pendulum does not swing back & forth in a straight line . That the true demonstrated  scientific finding of  foucault  pendulum . Not the earth rotating under it.

A poll is not a physical object you can stand up, as far as I know. So I have no idea what you're talking about.

I think he means "pole" - still doesn't make any sense however.

I think he means "pole" - still doesn't make any sense however.

Ahh, true.

A pole falls straight in the direction it falls as long as no other forces affect it. So that only disproved your point.

Quote from: JimmyTheCrab on September 15, 2015, 03:10:05 AM

I think he means "pole" - still doesn't make any sense however.

Ahh, true.

A pole falls straight in the direction it falls as long as no other forces affect it. So that only disproved your point.

What it demonstrates is centre of gravity dictates.  A stationery plumb bob hangs to its centre of gravity. If you move it off its centre , then continues new centres of gravity are established in relationship to the bob & line supporting it whilst its in motion  . This motion & shifts in centre  establishes a resistance due to fall & directional momentum in the bob & line, which then transfers the created torque back to  the pivot point. A pendulum never swings back & forth in a straight line .

Quote from: Master_Evar on September 15, 2015, 04:41:44 AM

Quote from: JimmyTheCrab on September 15, 2015, 03:10:05 AM

I think he means "pole" - still doesn't make any sense however.

Ahh, true.

A pole falls straight in the direction it falls as long as no other forces affect it. So that only disproved your point.

What it demonstrates is centre of gravity dictates.  A stationery plumb bob hangs to its centre of gravity. If you move it off its centre , then continues new centres of gravity are established in relationship to the bob & line supporting it whilst its in motion  . This motion & shifts in centre  establishes a resistance due to fall & directional momentum in the bob & line, which then transfers the created torque back to  the pivot point. A pendulum never swings back & forth in a straight line .

Since the pole falls straight then the center of gravity (and mass) has to be stationary, otherwise it would change it's direction. And those centers don't just change like that at random. And it still falls straight, which shows that as long as no other forces are introduced then things will continue on straight. Such as pendulums.

Is this one example the globe people base the Earth spinning in space on, a pendulum swinging? When in fact the Earth could be stationary and the sun and the moon and the stars, could all be orbiting the Earth. I think you guys should drop this notion and use something else to show the Earth is spinning in space. Maybe a real picture of the Earth spinning taken from one of your satellites. Maybe they should have taken a real video when they went to the moon. I wonder why they didn't? They had real video cameras back then.

Is this one example the globe people base the Earth spinning in space on, a pendulum swinging? When in fact the Earth could be stationary and the sun and the moon and the stars, could all be orbiting the Earth. I think you guys should drop this notion and use something else to show the Earth is spinning in space. Maybe a real picture of the Earth spinning taken from one of your satellites. Maybe they should have taken a real video when they went to the moon. I wonder why they didn't? They had real video cameras back then.

The pendulum works fine and an image wouldn't since in the other thread you are claiming the picture of the earth from a satellite shows a flat earth.