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This is why halo effect
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American Moon

This is whyhalo effect, due to a phenomenonground retroreflection, around its shadow

This is why
halo effect, due to a phenomenon
ground retroreflection, around its shadow

Full Transcript

00:00:01.000 --> 00:00:03.023
This is why halo effect,
00:00:03.026 --> 00:00:06.087
due to a phenomenon ground retroreflection,
00:00:07.006 --> 00:00:09.002
around its shadow.
Duration
9 seconds
Views
22
Timestamp in Movie
02:48:12
Uploaded
Jun 29, 2025
Genres
documentary, history
Production
N/A

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Movie Summary

This documentary examines the authenticity of the photographic record of NASA's Apollo missions.
As we've seen, however, many of bright areas in the NASA photographs - American Moon 00:10
As we've seen, however, many of bright areas in the NAS...
Questions: given that the Sun - American Moon 00:14
Questions: given that the Sun
In this particular case, the shading occurs in the center of the frame, - American Moon 00:12
In this particular case, the shading occurs in the center of...
Can you explain why why the obvious shadows appear, - American Moon 00:09
Can you explain why why the obvious shadows appear,
UMBRE - American Moon 00:11
UMBRE
Instead, they are, inexplicably divergent. - American Moon 00:05
Instead, they are, inexplicably divergent.
Because of the enormous distance to the Sun, - American Moon 00:10
Because of the enormous distance to the Sun,
But we can see them as parallel, - American Moon 00:09
But we can see them as parallel,
If we take a photograph with the sun behind us, - American Moon 00:08
If we take a photograph with the sun behind us,
But if we take a photograph with the sun in front of us, - American Moon 00:07
But if we take a photograph with the sun in front of us,
It is an effect of the phenomenon called perspective. - American Moon 00:04
It is an effect of the phenomenon called perspective.
In reality, the shadows created by the Sun are always parallel to the ground. - American Moon 00:06
In reality, the shadows created by the Sun are always parall...
We can see them convergent or divergent, - American Moon 00:08
We can see them convergent or divergent,
If, instead, we take a photograph with the sun at 90 degrees, - American Moon 00:12
If, instead, we take a photograph with the sun at 90 degrees...
The same effect occurs on train tracks, - American Moon 00:12
The same effect occurs on train tracks,
But in a few photos of the Apollo missions - American Moon 00:11
But in a few photos of the Apollo missions
Judging by the shadow of the LEM, - American Moon 00:06
Judging by the shadow of the LEM,
However, the shadows of the rocks in the foreground - American Moon 00:10
However, the shadows of the rocks in the foreground
As we've seen, when the sun is sideways, - American Moon 00:08
As we've seen, when the sun is sideways,
If we use an artificial light instead of the sun, - American Moon 00:13
If we use an artificial light instead of the sun,