Does ANYONE have ANY evidence that we live on a spinning ball?

Quote from: rabinoz on September 04, 2016, 06:04:33 AM

I thought Silicon was looking for evidence of rotation.

I gave some in Does ANYONE have ANY evidence that we live on a spinning ball? « Reply #309 on: September 03, 2016, 12:47:47 AM »

asking him to look up Re: Laser level. « Reply #50 on: July 03, 2016, 05:04:24 PM »

Gyro-Theodolites are real and used in long tunnels and mining when GPS or celestial fixes are not possible.

Really?  Gyro-Theodolites are riddled with geographic restrictions, setup problems, and numerous errors they seem to have trouble counter acting. 

https://en.wikipedia.org/wiki/Gyrotheodolite

I would believe the above ground communication version with gps etc is used but I don't see how this below ground only one would ever be reliable.

You don't see! So Mr Silicon is now the expert on underground surveying.

You claim that "Gyro-Theodolites are riddled with geographic restrictions, setup problems, and numerous errors they seem to have trouble counter acting."

Then quote Wikipedia, Gyrotheodolite.

Where is this evidence of "riddled with geographic restrictions" and "numerous errors they seem to have trouble counter acting"?

Your reference has this to say

Limitations
Although a gyro-theodolite functions at the equator and in both the northern and southern hemispheres, it cannot be used at either the North Pole or South Pole, where the Earth's axis is precisely perpendicular to the horizontal axis of the spinner and the meridian is undefined. Gyro-theodolites are not normally used within about 15 degrees of the pole because the east-west component of the Earth’s rotation is insufficient to obtain reliable results.

Unlike an artificial horizon or inertial navigation system, a gyro-theodolite cannot be relocated while it is operating. It must be restarted again at each site.

When available, astronomical star sights are able to give the meridian bearing to better than one hundred times the accuracy of the gyro-theodolite. Where this extra precision is not required, the gyro-theodolite is able to produce a result quickly without the need for night observations.

Sure, they are "not normally used within about 15 degrees of the pole", but that's not a major limitation.

And of course "astronomical star sights are able to give the meridian bearing to better than one hundred times the accuracy of the gyro-theodolite."

But, neither "astronomical star sights" nor GPS can be used underground.

Whatever its limitations, the  gyro-theodolite is real and is in use.

...
Have you measured the speed of the sun across the sky towards dusk? Can you share your measurements with us?
...

It is 15 degrees per hour.

Quote from: Silicon on September 05, 2016, 10:16:19 PM

...
Have you measured the speed of the sun across the sky towards dusk? Can you share your measurements with us?
...

It is 15 degrees per hour.

Can't you share a little more with poor Silicon. I think he is not so mathematically challenged that he can't understand simple explanation. That sun speed is constant and it makes full circle (360 degree) in 24 hours and that makes its movement per hour -> 360/24 = 15 . Although it seems that he is unable to figure out so simple thing by himself...

Quote from: SpJunk on September 06, 2016, 06:32:29 AM

Quote from: Silicon on September 05, 2016, 10:16:19 PM

...
Have you measured the speed of the sun across the sky towards dusk? Can you share your measurements with us?
...

It is 15 degrees per hour.

Can't you share a little more with poor Silicon. I think he is not so mathematically challenged that he can't understand simple explanation. That sun speed is constant and it makes full circle (360 degree) in 24 hours and that makes its movement per hour -> 360/24 = 15 . Although it seems that he is unable to figure out so simple thing by himself...

At 5:25 the guy in the video shares exactly how he gets his angles. Are you saying timeanddate.com is wrong?

Quote from: zork on September 06, 2016, 07:04:48 AM

Quote from: SpJunk on September 06, 2016, 06:32:29 AM

Quote from: Silicon on September 05, 2016, 10:16:19 PM

...
Have you measured the speed of the sun across the sky towards dusk? Can you share your measurements with us?
...

It is 15 degrees per hour.

Can't you share a little more with poor Silicon. I think he is not so mathematically challenged that he can't understand simple explanation. That sun speed is constant and it makes full circle (360 degree) in 24 hours and that makes its movement per hour -> 360/24 = 15 . Although it seems that he is unable to figure out so simple thing by himself...

At 5:25 the guy in the video shares exactly how he gets his angles. Are you saying timeanddate.com is wrong?

timeanddate is not wrong. Guy who interprets this data is wrong.

Quote from: Silicon on September 05, 2016, 09:58:16 PM

Quote from: rabinoz on September 04, 2016, 06:04:33 AM

I thought Silicon was looking for evidence of rotation.

I gave some in Does ANYONE have ANY evidence that we live on a spinning ball? « Reply #309 on: September 03, 2016, 12:47:47 AM »

asking him to look up Re: Laser level. « Reply #50 on: July 03, 2016, 05:04:24 PM »

Gyro-Theodolites are real and used in long tunnels and mining when GPS or celestial fixes are not possible.

Really?  Gyro-Theodolites are riddled with geographic restrictions, setup problems, and numerous errors they seem to have trouble counter acting. 

https://en.wikipedia.org/wiki/Gyrotheodolite

I would believe the above ground communication version with gps etc is used but I don't see how this below ground only one would ever be reliable.

You don't see! So Mr Silicon is now the expert on underground surveying.

You claim that "Gyro-Theodolites are riddled with geographic restrictions, setup problems, and numerous errors they seem to have trouble counter acting."

Then quote Wikipedia, Gyrotheodolite.

Where is this evidence of "riddled with geographic restrictions" and "numerous errors they seem to have trouble counter acting"?

Your reference has this to say

Quote

Limitations
Although a gyro-theodolite functions at the equator and in both the northern and southern hemispheres, it cannot be used at either the North Pole or South Pole, where the Earth's axis is precisely perpendicular to the horizontal axis of the spinner and the meridian is undefined. Gyro-theodolites are not normally used within about 15 degrees of the pole because the east-west component of the Earth’s rotation is insufficient to obtain reliable results.

Unlike an artificial horizon or inertial navigation system, a gyro-theodolite cannot be relocated while it is operating. It must be restarted again at each site.

When available, astronomical star sights are able to give the meridian bearing to better than one hundred times the accuracy of the gyro-theodolite. Where this extra precision is not required, the gyro-theodolite is able to produce a result quickly without the need for night observations.

Sure, they are "not normally used within about 15 degrees of the pole", but that's not a major limitation.

And of course "astronomical star sights are able to give the meridian bearing to better than one hundred times the accuracy of the gyro-theodolite."

But, neither "astronomical star sights" nor GPS can be used underground.

Whatever its limitations, the  gyro-theodolite is real and is in use.

So, both the  gyro-theodolite and mains gyro-compass are very strong evidence the the earth does actually rotate.

Researched quite a few of these products for sale and I cannot find one that rely solely on earths rotation to obtain a measurement. If you can find one that does (one that we could actually buy) list it here....   

In my opinion, the best evidence on spinning Earth is TELECOMMUNICATION SATELLITES. You may imply that NASA's satellites don't exist cuz NASA lies. But telecommunication satellites don't lie. And that's not only that they relay and amplify radio telecommunications signals, it is also the knowledge HOW IS IT DONE, THAT THEY "HANG" OVER ONE POINT ON THE EARTH AND DON'T FALL.
Do you need an evidence? There is a lot. Try the Google first.

Here is a demonstration of how it works.  Do you understand what is being said here?

Wow. Ok, so there are a LOT of problems with this video.

Do you honestly believe this is the correct way to measure an angle? " class="bbc_link" target="_blank" rel="noopener noreferrer">19:11, " class="bbc_link" target="_blank" rel="noopener noreferrer">19:30, " class="bbc_link" target="_blank" rel="noopener noreferrer">19:50, " class="bbc_link" target="_blank" rel="noopener noreferrer">20:09, etc.

" class="bbc_link" target="_blank" rel="noopener noreferrer">1:00 (Horizon is not directly horizontal on a globe):
1. Someone 6 feet tall has to look "down" at the horizon a grand total of 0.04 degrees. Completely insignificant.
2. Modern surveyors don't rely on the horizon to level their equipment.

Explanation from " class="bbc_link" target="_blank" rel="noopener noreferrer">5:10 to 13:50 is wrong. He is hopelessly confusing how angles and perspective works. If you really don't understand why this part is wrong, I'll start a new thread dedicated to this video.

I haven't seen or don't remember that anyone mentioned such person as Giovanni Battista Guglielmini. Its interesting to know if there is exlpanation for results in his experiment and other similar experiment later (some of them are mentioned in https://books.google.com/books?id=VpFPDAAAQBAJ&pg=PA531&lpg=PA531#v=onepage&q&f=false ) on FE model. In short, balls were dropped straight down and most of them (as you can't totally eliminate balls own movement) landed not straight down but were deviated eastward. If the earth is still and doesn't rotate then balls dropping straight down should drop straight down not deviate to the east.
 EDIT: I thought that its useful to add reason why balls deviate. Its because place nearest to earth center moves slower than place farthest. The ball dropped at some high place (the top of tower or deep shaft) retains its velocity and should drop some distance at east of the drop site as lower place moves slower.

  Other things aside, does anyone really have no comments about it. Debunking it or finding other explanations than its because we live on a spinning ball.