00:00The Apollo astronauts walking on the moon took pictures of their lunar module showing no blast crater underneath the spacecraft,
00:08which means it's a model on a soundstage.
00:10And the astronauts didn't have it on full throttle when they were making the actual physical landing.
00:15Even though the engine had a maximum thrust of 10,500 pounds, it was only at about 3,000 pounds
00:21at the moment of touchdown.
00:23Add to that the alien environment of the moon.
00:25The moon only has about one-sixth the amount of gravity that we have on Earth.
00:30So 3,000 pounds of thrust coming out of that engine will actually feel like less on the moon.
00:35And the moon has no atmosphere.
00:37So the thrust of that engine can actually spread out and dissipate away from the engine more than it could
00:43on Earth.
00:43Instead of the thrust being directed straight downwards, it has a chance to actually billow out to the sides a
00:49little bit more.
00:50So even though the astronauts are landing with 3,000 pounds of thrust,
00:54the force of that thrust is actually dispersed well enough that it disturbed the dust, but didn't leave a massive
01:00crater.
01:16And in some cases, the descent stage engine was cut before the actual landing.
01:216,000 pounds of thrust, 60 seconds, right's on, down 2 1ā2, forward, forward, 30 feet down 2 1ā2, picking
01:42up some dust, 30 feet 2 1ā2 down, straight shadow, 4 forward, 4 forward, drift into the right leg.
01:513 1ā2, 30 feet, forward, drift into the right leg.
02:02Contact light.
02:05Okay, engine stop, APA at a descent.
02:09Out a descent.
02:10Out control, both auto, decent engine command over, right off.
02:13Engine arm off.
02:15413 is in.
02:19We copy you down, Eagle
02:25Houston, Tranquility Base here, the Eagle has landed
02:28Roger, Twink
02:29Tranquility, we copy you on the ground
02:31You got a bunch of guys about to turn blue
02:33We're breathing again, thanks a lot
02:36Meaning that the thrust of the rocket engine
02:38Wouldn't have had as much time or as much proximity to the moon
02:42To make any kind of impact
02:43So does this help explain why there are no blast craters underneath the lunar modules?
02:47If you still need a bit more convincing
02:49Or want to see a bit more of the work that went into figuring this out
02:52I've got links below to people who actually did and can do the math
02:55To explain why the force is not as strong when landing on the moon
03:00And not strong enough to make a blast crater
03:16So have you ever been convinced by this argument?
03:18Let me know in the comments below
03:19And also, what are your favorite moon landing conspiracy theories?
03:43Let me know in the comments below
03:47Let me know in the comments below
03:48Let me know in the comments below
03:48Let me know in the comments below
03:50Let me know in the comments below
03:50Let me know in the comments below
03:50Let me know in the comments below
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