Quote# 134212

if i tie a string to a tree branch it hangs straight down. vertically. why is this? if the earth is rotating at 1,000mph, the rope should have a slight pitch caused by the earths rotation. if i take that same rope and hang it from my arm and hold still.. the rope also stays still... but if i try to move my arm at any speed, the rope is no longer vertical.

the end of the rope in my hand leads, the end closes to the ground trails behind it. theres no movement. simple as that. how about a helium baloon.. but one thats lost some of its helium so that it sits buoyant instead of rising...

if you have a string hanging from a helium baloon thats just floating. it stays in the same place... you cant observe the earths movement below it.. yet its not attached to anything. it just sits there... yet globers will use a pendulum as proof for the spinning ball earth.

Shawn Mcdonald, Facebook 12 Comments [11/14/2017 2:15:45 PM]
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Submitted By: Katie

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checkmate

yet globers will use a pendulum as proof for the spinning ball earth.


Right! It's called a Foucault pendulum, and I've visited a number of them at different places around the world, including many childhood visits to the one at the Boston Museum of Science.

Read up on it before you make more of an ass of yourself: https://en.wikipedia.org/wiki/Foucault_pendulum


11/14/2017 2:26:31 PM

Adey

Now board a train or bus and repeat the "experiments". Exactly the same things happen!

So your conclusion must be the train/bus isn't moving, then it is impossible to use transport to get anywhere but where you started.

QED

11/14/2017 2:56:14 PM

Kanna

Gravity, and the fact that the atmosphere at the surface is traveling at the same speed as the rest of the earth.

If you are in a car going 50 mph with the windows closed, the air in the car is going 50 mph and so are the passengers. You don't really feel the forward motion except when the car speeds up or slows down.

11/14/2017 3:20:53 PM

creativerealms

Gravity.

11/15/2017 2:49:31 AM

gimel

The interesting fact is that the string IS TILTED!
But the tilt is negligible. Basically, Earth's geoid formed while our planet was rotating at a different rate than today. As a consequence, the sum of gravitational and centrifugal forces is not exactly perpendicular to Earth's surface, not always, not everywhere.

11/15/2017 6:01:52 AM



Gravity. This is something you should know well before even middle school.

11/15/2017 6:08:55 AM

Philbert McAdamia

A gravity denier.
Pffft! It's just a theory.

11/15/2017 6:10:39 AM

Azereaux

I'm guessing "inertia" and "relative velocity" are alien concepts to you, then. Go study elementary school physics again.

11/15/2017 7:13:28 AM

Timjer

Except that, you know, a proper, precise pendulumm can prove that the earth spins. As checkmate said, it's called a Foucault pendulum. Hell, when I was a kid I saw one in a science museum with a very clear explanation on how it works. And I saw it working it my very eyes.

P.S.: Thanks by the way, checkmate, for beating me to it. Because I had honestly forgotten what it was called, exactly.

11/15/2017 7:23:35 AM

keith

When we shoot missiles from a submarine, they hit the target IF and ONLY if we take the Earth's movements into account. Among other calculations, globe's rotation, the wobble in the rotation, the daily variations in the change of rotation. We adjust for the submarine's velocity with respect to Earth's rotation AND the fact that the target moves during the duration of missile flight and warhead ballistic return. None of this would be necessary on a flat Earth with the sun orbiting it. In fact, the corrections would be inserting error and decreasing accuracy, if the model was unsound.

Soooooo, bullshit.


ETA: Oh! And I forgot, we actually measure the missile's alignment in the tube by the way it detects the Earth's spin. We have a reference system and the missile's guidance system. We discount the detection of gravity, the movement of the tides, the waves rocking the sub, and what's left is the effect of Earth's rotation.

Yes, we can actually measure the motion with inertial components, and it's consistent with the globe model. Feel free to explain that observation within the flat, fixed earth framework.

11/15/2017 7:28:08 AM

agentCDE

"lol wut iz inurtas"

11/15/2017 6:59:54 PM

dxdydz

@checkmate

including many childhood visits to the one at the Boston Museum of Science.




Some friends and I went there over thanksgiving break a few years ago, tons of fun! A few of the presenters were really happy to have a bunch of crazy college STEMies there too! I can definitely say I had as much fun as my childhood visits there, but I think the presenters had more fun than me!

11/15/2017 8:55:44 PM

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