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Originally posted by absente
Let's face it: We had the technology do do a live video stream from the moon 40 years ago, using a simple VHF transmitter powered by first generation solar panels. I am sure there are a lot of reasons, the US government didn't do this, yet I can't get this idea out of my head, because it is "managable".
We see stories from kids launching rockets into space, making photos of he earths orbit, even "pet funerals" in outer space - yet no one has ever launched a project to simply place a cam on the moon?
My work involves R&D and programming as well as traditional design, yet I am a total nut when it comes to physics. I have plenty of free time and over the past two years, me and two friends developed plans for a unit that could do the job - for now on paper.
Let's assume we created a minimalistic robotic machine, 8 cameras supporting 360 degree view angles, an independent moving/rotating mechanism, any kind of main + secondary transmitter, motion detectors and 4 infrared units among other things. Let's also assume that we figured out how to supply that whole thing with enough energy. Weight: 82kg. Dimensions: 64cm x 64cm x 64cm.
My two major problems are uplink/downlink (e.g. communications - transmitter/receiver) and transportation. Secondary problems would be frequency jamming, radiation, technical failures, collision, misplacement.
Before saying that I am crazy and that it can't be done, let's just explore possibilities, step by step. I remember years ago, ATS was a place where projects (well, not of this scale) became reality, even headlines.
Let's do a "How to send a 80kg package to the moon and land it safely for Dummies"
edit on 19/10/12 by absente because: headline
Originally posted by -PLB-
The biggest problem would be the rocket, which would cost billions to build and develop. I think the robot would be doable on a limited budget. But not getting it there would spoil the fun.
The three-stage Thor-Able vehicle consisted of a modified Air Force Thor IRBM (liquid propellant, thrust about 153,000 pounds) as the first stage. A liquid-propellant rocket engine powered the second stage (modified Vanguard second stage, thrust about 7500 pounds). The third stage was a solid-propellant unit based on Vanguard design, rated at 116,500 lb*sec total impulse.
Pioneer 1 was fabricated by Ramo-Wooldridge Corp.(TRW), and consisted of a thin cylindrical midsection with a squat truncated cone on each side. The cylinder was 74 cm (29 in) in diameter and the height from the top of one cone to the top of the opposite cone was 76 cm (30 in). Along the axis of the spacecraft and protruding from the end of the lower cone was an 11 kg solid propellant injection rocket and rocket case, which formed the main structural member of the spacecraft. Eight small low-thrust solid propellant velocity adjustment rockets were mounted on the end of the upper cone in a ring assembly which could be jettisoned after use. A magnetic dipole antenna also protruded from the top of the upper cone. The shell was composed of laminated plastic. The total mass of the spacecraft after vernier separation was 34.2 kg, after injection rocket firing it would have been 23.2 kg.
The scientific instrument package had a mass of 17.8 kg and consisted of an image scanning infrared television system to study the Moon's surface to a resolution of 0.5 degrees, an ionization chamber to measure radiation in space, a diaphragm/microphone assembly to detect micrometeorites, a spin-coil magnetometer to measure magnetic fields to 5 microgauss, and temperature-variable resistors to record the spacecraft's internal conditions. The spacecraft was powered by nickel-cadmium batteries for ignition of the rockets, silver cell batteries for the television system, and mercury batteries for the remaining circuits. Radio transmission was at on 108.06 MHz through an electric dipole antenna for telemetry and doppler information at 300 mW and a magnetic dipole antenna for the television system at 50 W. Ground commands were received through the electric dipole antenna at 115 MHz. The spacecraft was spin-stabilized at 1.8 rps, the spin direction was approximately perpendicular to the geomagnetic meridian planes of the trajectory.
The automatic lunar station that achieved the landing weighed 99 kilograms (220 lb). It used a landing bag to survive the impact speed of 54 kilometres per hour (34 mph)
Originally posted by 23432
Good idea .
Perhaps using a supergun type of launch is the solution .
Originally posted by SquirrelNutz
How come no one is asking the question why our own space program has never done so? We've landed multiple rovers on Mars now, for Chrissakes, why do we not have one on the moon just so people could explore history (old Apollo Landing sites, etc)
Originally posted by SquirrelNutz
reply to post by -PLB-
Why do travel I droves to Rome, Paris, the Pyramids of Giza, the Great Wall of China, The Grand Canyon?
No one has seen anything on the moon that isn't 40+ years old except a few scientists, and a handful of astronauts. I want to see the moon with Today's technology: Landing sites (close up), dark side, earth views, etc.