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Can you actually do this?(laser shooting to moon)

by supernova1203
Tags: moon, shooting, thislaser
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supernova1203
#1
Jan7-12, 07:47 PM
P: 209
Found this on youtube, wasnt sure if this is actually possible, i never heard of the astronauts actually leaving stuff on the moon.

http://www.youtube.com/watch?v=-e5CtbbZL-k
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Jimmy
#2
Jan7-12, 08:02 PM
P: 672
Yes, it's possible- and it's been done.

http://funphysics.jpl.nasa.gov/techn...nar-laser.html
http://en.wikipedia.org/wiki/Lunar_L...ing_experiment
turbo
#3
Jan7-12, 08:06 PM
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Yes. If you leave a mirrored target shaped like the intersection of 3 walls of a cube, the light will come directly back to the area from which the pulse was fired.

Drakkith
#4
Jan8-12, 05:41 AM
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Can you actually do this?(laser shooting to moon)

Quote Quote by supernova1203 View Post
Found this on youtube, wasnt sure if this is actually possible, i never heard of the astronauts actually leaving stuff on the moon.

http://www.youtube.com/watch?v=-e5CtbbZL-k
Look up the apollo missions on wikipedia. You can find plenty of info on the experiments left behind.
Jobrag
#5
Jan8-12, 06:42 AM
P: 477
It's a good point to mention to Apollo hoax believers, they tend to start mumbling when you point out that there is proof that stuff was left behind.
cuad
#6
Jan13-12, 01:31 AM
P: 2
Jobrag, they'd respond with this:

http://www.youtube.com/watch?v=1rvmBEsTcoU&t=05m59s

Summary: National Geographic and the New York Times both report, years before apollo 11, that the US and the Soviet Union were bouncing lasers off the moon.
leprechaun0
#7
Jan13-12, 02:34 AM
P: 12
Yes it is incredible, even 40 years later. As a consequence Nasa can measure the moon's distance to millimeter resolution( maybe more , not sure). They also use it to help calculate the orbit of the Lunar Reconnaissance Orbiter. I have to assume it has been used to impress a woman at one point in time also.
Chronos
#8
Jan13-12, 02:34 AM
Sci Advisor
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But, not with the precision achievable with LLRE. It's been nailed down to a matter of millimeters now.


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