Calling All Globulists! Debunk This Or Take Your Pear Oblate Ball and Go Home!

Quote from: TotesReptilian on January 10, 2017, 10:47:00 PM

I didn't watch most of this section, since it is extremely long, and you didn't seem to be in any hurry to make your point...

So I decided to bite the bullet and watch the rest of the video.

Your entire premise is based on the assumption that your heading indicator is sensitive enough to detect the rotation of the earth. The Navy training video indicates that it can be a problem, but that certainly isn't a guarantee that the one you have is sensitive enough.

If you want to prove that something (the rotation of the earth) doesn't exist, you need to first prove that your instrument is sensitive enough to measure it if it theoretically does exist. Since you don't do this, your experiment doesn't prove anything.

Also, the sensitivity of the indicator might be different depending on if it is in motion or not. If the indicator is perfectly still (as in your experiment), static friction might be stronger than the force imparted by the rotation of the earth. If the indicator is constantly turning, you can eliminate static friction, but then you have to deal with mechanical drift. You might be able to eliminate both mechanical drift and static friction from the equation by performing numerous trials while slowly rotating the indicator for 15 minutes, and then measuring the total drift. Make sure to do trials rotating the indicator in both directions. Combine the data and look for patterns.

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56:15 - "If an aircraft flies straight and level, and makes no adjustments at all, then no mechanical drift can occur"

Since when do aircrafts fly perfectly straight and level? There will always be turbulence, vibration, and small course corrections.

56:25 - "From personal experience, witnessing the directional gyro drifting in both directions in the same flight in the same hemisphere, I can say with absolute certainty that there is no bias in one direction that would absolutely be necessary if gyroscopes were remaining rigid in space with the earth spinning under them."

Wow. That is an incredibly bold claim to make based on a small amount of anecdotal evidence under uncontrolled and vague conditions.

Jeranism, i think that you can take your flat disk plate home and eat in it because you got scienced 

i dont get this who thread.
it seems that jeranism has made a vid of a gyscope (which proves re) and thinks this proves fe, and wants someone to debunk it, but he done that himself in his own video.
is that what its about?

i dont get this who thread.
it seems that jeranism has made a vid of a gyscope (which proves re) and thinks this proves fe, and wants someone to debunk it, but he done that himself in his own video.
is that what its about?

It seems that at the end he has a video of a gyroscope which shows it to be stationary rather than moving.
The problem for him is that he doesn't just have a gyroscope. Instead he has an apparatus which is designed to correct for that error.

i dont get this who thread.
it seems that jeranism has made a vid of a gyscope (which proves re) and thinks this proves fe, and wants someone to debunk it, but he done that himself in his own video.
is that what its about?

He didn't make the video, some Durham guy did. Jeranism isn't that competent.

As i recall Reds rhetoric pretty much debunked in great detail ALL your points or is this something really new ?

As i suspected an OLD argument about heading indicators and gyroscopes, already covered in great details, here:

https://www.metabunk.org/debunked-gyro-experiment-proves-motionless-earth.t7413/

https://www.metabunk.org/gyroscopes-as-evidence-for-a-spherical-and-rotating-earth.t7555/

So do you have something new ? Like can you point out in your video the part when you checked your results with gyro theory and estimated the acting forces and calculated predictions to test ?

All I can see is a small gyro suffer from friction, because of which they cannot follow very slow changes in orientation.

And gyros are for detecting rate of change of an angle, not a position. So next time test your gyros with a 24h period turning table and see if they can detect it.

i dont get this who thread.
it seems that jeranism has made a vid of a gyscope (which proves re) and thinks this proves fe, and wants someone to debunk it, but he done that himself in his own video.
is that what its about?

Gyroscopes by themselves don't prove the earth is round. But detecting a specific precession in a gyroscope can prove that it is rotating. He was unable to detect this small precession, therefore he concludes the earth isn't rotating. The problem is, he never proves that his gyroscope is sensitive enough to detect such a small rotation.

It's like claiming that atoms don't exist because he can't see them with a magnifying glass.

...The problem for him is that he doesn't just have a gyroscope. Instead he has an apparatus which is designed to correct for that error.

There is nothing to correct for the rotation of the earth in his heading indicator. Just friction.

Quote from: totallackey on January 10, 2017, 01:58:55 PM

Quote from: JackBlack on January 10, 2017, 12:28:40 AM

I am a lazy _ _ _ _ _ _ _  _ _ _ _ _ _ _ that claims to do math but cannot understand what is the video, therefore I will post this.

The video communicates his point.

Why would he feel the need to "condense," what he wants to communicate for the benefit of someone exhibiting such laziness?

Either watch the vid or don't.

Possibly "The video communicates his point" but he does take a long, long time to say that:

(1) He does not understand how aircraft Attitude Indicators work and

(2) He understands nothing about bearing friction and how it prevents cheapy gyroscopes like his from showing the earth's rotation.

You might read a bit from someone who knows what they are talking about:
High-Accuracy Ring Laser Gyroscopes: Earth Rotation Rate and Relativistic Effects.

Here is a "Ring Laser Gyroscope" that will certainly measure the earth's rotation, but if you don't have a Bill Gates budget, forget it!
Honeywell, GG1320AN Digital Ring Laser Gyroscope

This one has a "drift" that would do very well: Angular Random Walk (ARW) 0.0035 deg/hour (typical).

Angular Random Walk means that in the absence of any movement,  after an hour it will typically show 0.0035°.

But this gyro is a bit up-market for Rob Durham! This sort of ring-laser Gyro is intended for aircraft inertial navigation systems.

But, the point is that there are ring laser gyroscopes that far more stable than needed to measure the Earth's rotation.

Tell Rob Durham and Geranium (or whatever) to take their toys and go home.

Hey I love that your working to disprove these guys but a few things.

1) That is not an attitude indicator. It is a Directional Gyro, or Heading Indicator. It does not show what your Attitude is it shows you what your direction or heading is.
2) in small GA aircraft, the directional gyro must be Reset according to the magnetic compass to account for the rotation of earth, friction, and leveling errors. Also aircraft movement will create drift either adding or subtracting from the drift caused by the rotation of the earth.

Honestly I have no idea how a real pilot could get around without knowing these things. The DG is usually Reset every ten to fifteen minutes during flight and is a common problem for new pilots to navigate.