Flat Earth Claim: "The Greatest Laser Experiment In History" - FECORE

Rodoxag

New Member
Hello all!

Recently I stumbled upon this video, which claims to be the most precise experiment performed with lasers to date, supposedly demonstrating that the Earth is effectively flat. Roughly speaking it consists of 2 experiments (one at Lake Balaton, and the other at Lake Ijssel) and a total of 7 observations conducted in 2018.


If anyone is interested, I post the timestamps below:

26:21 = Lake Balaton, first measurement. 12 km.
30:08 = Lake Balaton, second measurement. 12 km.
39:08 = Lake Ijssel, third measurement. 21.26 km.
43:12 = Lake Ijssel, fourth measurement. 28.68 km.
46:09 = Lake Ijssel, fifth measurement. 18.73 km.
48:09 = Lake Ijssel, sixth measurement. 40 km
51:45 = Lake Ijssel, seventh measurement. 40 km.

The highlight of this set of observations is that they observed a laser located 40 km away from the observer, being the height of laser 2.92 meters above the water, and the observer 1.5 meters above the water. They described the settings and the observations at 48:09 and 51:45 (6th and 7th measurements). Here I post the images of the reported observations:

1620669515571.png

1620669554620.png

They claim that refraction wasn't significative, but they method by which they arrived at that conclusion is fuzzy at best. Basically, they measured the temperature and humidity of the air above the lake (without specifying the height of measurement) both at the location of the laser and the observer, and then calculated the refractive index. Since they didn't find a significative difference in refractive index, they then concluded that refraction was negligible. The thing is, this method of comparing refractive indexes at two locations doesn't make sense to me at all. From the minute 31:30 onward you can find the description of this method

1620670243455.png

In my opinion, another huge problem is that they didn't measure the vertical temperature profile. They claim that the temperature descreased above the lake, and if this was true then the lapse rate would have been negative, but they didn't show these measurements.

1620671388009.png

I've been playing around with Mick's refraction simulator, and it seems to me that a pretty common temperature inversion lapse rate could easily explain these observations. I'd also expect this temperature inversion to be a common event given the extremely cold weather and the hour at which the measurements were carried out.

Observer height = 5 feet
Laser height = 9.6 feet
Distance = 25 miles

1620673137187.png
What do you think?
 

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Ravi

Active Member
I am thinking about a possible way of trying do this laser experiment correctly. I think the aim is to use large size diameter optics, and create a kind of auto-collimation setup. This setup involves 2 (or only 1) telescopes aimed and aligned with respect to each other , at x meter height. Let's say you then simultaneously (accurately) lower both of the telescopes, while maintaining the alignment, until alignment is lost due to curvature.

Of course this interesting experiment will not get any cheaper. :)
 

Ravi

Active Member
Thanks Mick, indeed this is of course completely true (that refraction screws it up). I was too focussed on the technical optical/hardware part, should have mentioned the refraction.

To get around the refraction problem, you would need to use wavelengths that are less affected by refraction. Thus, higher frequencies (smaller wavelengths.. X rays?)
 
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Mick West

Administrator
Staff member
To get around the refraction problem, you would need to use wavelengths that are less affected by refraction. Thus, higher frequencies (smaller wavelengths.. X rays?)
It's FAR simpler to just use visible light, and rise up above the worst of the refraction by using large objects like mountains. Or even just something like a Wallace experiment where refraction is accounted for by using multiple times and observations. Like this one:
http://walter.bislins.ch/bloge/index.asp?page=The+Rainy+Lake+Experiment
Lasers are utterly pointless. They just give you one light path, and it's trivial to sometimes squeeze it into a horizon skimming path. A daylight photo gives you ALL the light paths.
 

Ravi

Active Member
Lol. True, of course I would not recommend them to use them (or anyone).

@Mick, thanks, interesting read!
 

Mendel

Senior Member.
I'm thinking: is it possible to reverse the experiment? Use a laser and a small obstacle such that from behind the obstacle, you can't see the laser = the obstacle throws a "laser shadow"; and then use a quadcopter drone with a camera to track the path of that shadow. This eliminates any problems with scattering and diffraction: if these phenomena eliminate the shadow, measurements can no longer be taken = no errors. Over here, a drone can be flown to an altitude of 100m, which ought to give enough leeway for a horizontal path of ~30km.
 

Mick West

Administrator
Staff member
I'm thinking: is it possible to reverse the experiment? Use a laser and a small obstacle such that from behind the obstacle, you can't see the laser = the obstacle throws a "laser shadow"; and then use a quadcopter drone with a camera to track the path of that shadow. This eliminates any problems with scattering and diffraction: if these phenomena eliminate the shadow, measurements can no longer be taken = no errors. Over here, a drone can be flown to an altitude of 100m, which ought to give enough leeway for a horizontal path of ~30km.
Interesting idea. I don't think the laser shadow would work well, as the width of the beam increases to several feel after just a few km.

But I think it must be possible to devise an experiment along those lines that would allow you to trace the path of the laser with a drone. Possible equipment on the drone itself could detect the laser, and then attempt to generate a 3D model of the beam's path (and divergence) by flying in some kind of helical path, in and out of the beam, like a 3d scanner. It would record the beam intensity, allowing a 3d model to be later re-created.
 

FatPhil

Active Member
Interesting idea. I don't think the laser shadow would work well, as the width of the beam increases to several feel after just a few km.

But I think it must be possible to devise an experiment along those lines that would allow you to trace the path of the laser with a drone. Possible equipment on the drone itself could detect the laser, and then attempt to generate a 3D model of the beam's path (and divergence) by flying in some kind of helical path, in and out of the beam, like a 3d scanner. It would record the beam intensity, allowing a 3d model to be later re-created.

It would only be able to build a model based on the laws of geometry it was programmed with (such as trusting coordinates from GPS). Which are probably based on postulates FE-ers seem not to share. It's bootstrapping problems all the way down.
 

Mick West

Administrator
Staff member
It would only be able to build a model based on the laws of geometry it was programmed with (such as trusting coordinates from GPS). Which are probably based on postulates FE-ers seem not to share. It's bootstrapping problems all the way down.
I was thinking you could use sonar to measure the altitude,
 
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