Uploaded August 2020 | Updated September 2026, 3 days ago

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Well, this is a series where I take a look at one of the Flat-earth flyer, and discuss/debunk one section at a time.

So far, we covered “Water is a natural level”, “Airplane level flights”, “Science says it’s stationary”, “Horizon is always Eye level”, “We see too far” and “Dome is Real”.

Today, Moonlight is Cold.

A laser thermometer proves moonlight is colder than in the shade. This fact indicates that the moon is not a reflector of the sun’s light, but rather a light source in-and-of itself.


Depending which flat-earther you are talking to, this can be a two pronged attack. First: if moon is not reflecting sunlight as we know in a heliocentric model, then it must mean that heliocentric Is incorrect and thus geocentric model is correct where earth is in centre.


Well let's look into it, shall we?


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Table of contents
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0:00 - Introduction
0:32 - Assumptions
2:10 - Problems with Flat-earther experiments
2:30 - Heat Capacity of materials
3:40 - Scientific method: control
4:13 - How cloud changes temperature
5:16 - D Marble tests with tin foil
6:16 - Thermometer explained
6:56 - How lase or infrared thermometer works
7:58 - EMissivity of different surfaces
8:48 - Reflected light is not same as original
9:47 - Why is it colder? Radiative cooling
10:23 - You can't cheat Thermodynamics