Welcome to the PF.Gil Lee said:
Yes. Do you believe the Apollo video shows the realistic way of human walking on the 1/6 gravity vacuum environment?berkeman said:Welcome to the PF.
Did you have a question?
Are you suggesting there is some problem with the videos of the moon landings and excursions?Gil Lee said:
What research have you done and what math/physics do you know? You can construct relatively simple scenarios and come up with a serviceable answer. Some structure, research direction to get you going:Gil Lee said:
When the gravity is 1/6, that means the friction between boot and the ground will be about 1/6. The walker feels it is very slippery. Do you know how to walk on the slippery surface? Like cheetah put their center of gravity much forward than the rear legs which are the thrust, you need to incline the human body forward before you start walking or running. When you stop, you need to incline your body backward to reduce the speed just like the man walking on ice. Think about it. Nasa's contracted out to Ph.D. to make the simulator and the video looks totally different from Apollo video.mfb said:
We have most of the parameter. Nasa said the astronaut weight is about 80lb, and the suit is 80 lb. The astronaut can jump up about one foot on the earth. Using the same muscle, how high can he jump up at 1/6 gravity? Mass is same on the moon, but the weight that counter the muscle is 1/6/russ_watters said:
This does not make any sense. Friction is also dependent on the material, and here we talk about sand. If your argument was true, and it is not, then kiddies couldn't walk on the beach, which is definitely wrong.Gil Lee said:
Neither of those are correct according to common sense and a 5 second Google. Please do better.Gil Lee said:
I gave you an approach to follow. We can help, but we don't spoon feed. This isn't an answer desk it is an educational forum. Make an effort and if you have specific issues following the approach, ask specific questions.
Queue the music...Gil Lee said:
You have an approach that seems to be wrong. Guess what. I calculated that astronaut can jump up at least 6 feet on the moon surface. Noen of them jumps that high in Apollo video.russ_watters said:
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