rmarion
Stop The Steal
- Joined
- Mar 14, 2008
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uumm really??
ohh OK
Thanks! I forgot how bad special effects used to be. That’s like watching a 1950’s movie naval battle.They left in it too.
Unfortunately the poor bastard that filmed their departure is still on the moon.
Is that real?
Both of you should explore the stunning revelation that aerodynamic forces do not exist in the vacuum of space.
yesIs that real?
It's real because some incel in a basement produced the meme. You should ask if it's factual.Is that real?
or maybe listen to the 2nd man who supposedly walked on the moon??It's real because some incel in a basement produced the meme. You should ask if it's factual.
See, If you had watched the videos I linked above about Apollo communications, you'd know the technology limitations of sending color video from the moon to the Earth during the period of the missions, 1968-1972.Thanks! I forgot how bad special effects used to be. That’s like watching a 1950’s movie naval battle.![]()
Actually the video from the moon landing was high def. None of the networks had the capability to record that so they set up a pos TV and pointed a camera at it. We all know how well that works.See, If you had watched the videos I linked above about Apollo communications, you'd know the technology limitations of sending color video from the moon to the Earth during the period of the missions, 1968-1972.
Apollo used cameras that didn't have very good resolution because of weight and physical size constraints, and clear transmission of the analog progressive scan NTSC television signal over 240,000 miles was prevented because of dB losses during the conversion of the camera's optical lens capture to radio signals and bandwidth limitations of the Unified S-Band comm link used by the space agency.
The Unified S-Band scheme used by NASA allowed deep space communications through the use of a single carrier frequency in the 2 GHz band to facilitate voice, telemetry, and TV signals via discrete modulated frequencies on the carrier. It's quite simple, if you have a basic understanding of radio waves and how phase and frequency modulation work.
A single carrier frequency is utilized in each direction for the transmission of all tracking and communications data between the spacecraft and ground. The voice and update data are modulated onto subcarriers and then combined with the ranging data.This composite information is used to phase-modulate the transmitted carrier frequency. The received and transmitted carrier frequencies are coherently related. This allows measurements of the carrier doppler frequency by the ground station for determination of the radial velocity of the spacecraft.
In the transponder, the subcarriers are extracted from the RF carrier and detected to produce the voice and command information. The binary ranging signals, modulated directly onto the carrier, are detected by the wide-band phase detector and translated to a video signal.
The voice and telemetry data to be transmitted from the spacecraft are modulated onto subcarriers, combined with the video ranging signals, and used to phase-modulate the downlink carrier frequency. The transponder transmitter can also be frequency modulated for the transmission of television information or recorded data instead of ranging signals.
The Unified S-Band System used the 2025-2120 MHz band for uplinks (earth to space transmissions) and the 2200-2290 MHz band for downlinks (space to earth transmissions).
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Unified S-band
Template:Copy-paste The Unified S-band (USB) system was a tracking and communication system developed for the Apollo program by NASA and the Jet Propulsion Laboratory (JPL). It operated in the S band portion of the microwave spectrum, unifying voice communications, television, telemetry...nasa.fandom.com
More information about Apollo communications systems are available. Here's a link to a PDF that explores the subject thoroughly:
Apollo experience report: S-band system signal design and analysis - NASA Technical Reports Server (NTRS)
A description is given of the Apollo communications-system engineering-analysis effort that ensured the adequacy, performance, and interface compatibility of the unified S-band system elements for a successful lunar-landing mission. The evolution and conceptual design of the unified S-band...ntrs.nasa.gov
Besides all that technical mumbo-jumbo, the quality of broadcast color TV of the time sucked. Watch a YouTube video of Archie Bunker on All in the Family filmed in 1972, and you'll see the same blurry images.
High definition video wasn't produced in the 70s, at that time in the United States it all used the NTSC 525 line interlaced scan. Higher resolution standards weren't adopted until the 1980s. The quality of the 525i depended on the camera and the transmitted signal. The lunar missions presented a significant problem, the lack of bandwidth used to transport the video feed. I had forgotten that to overcome this, NASA developed cameras that filmed with a 320 line progressive scan, which used much less bandwidth. That signal was converted to the NTSC standard upon reception on Earth.Actually the video from the moon landing was high def. None of the networks had the capability to record that so they set up a pos TV and pointed a camera at it. We all know how well that works.
And just WTF are you thinking, that the space shuttle just launched itself to those speeds
I use hi def because people understand its quality in a statement. I agree with your definition. The news network pointed their news cameras at the monitor and broadcasted that grainy quality footage to the American public as if that was what NASA was seeing. Infact, you could see the feed from the moon very clear with much detail if you were at mission control. It's a long explanation why a camera pointed at TV tube with three color guns shows up grainy and has horizontal lines through it.High definition video wasn't produced in the 70s, a that time in the United States it all used the NTSC 525 line progressive scan. Higher resolution standards weren't adopted until the 1980s. The quality of the 520p depended on the camera and the transmitted signal. The lunar missions presented a significant problem, the lack of bandwidth used to transport the video feed. I had forgotten that to overcome this, NASA developed cameras that filmed with a 320 line interlaced scan, which used much less bandwidth. That signal was converted to the NTSC standard upon reception on Earth.
Your comment about cameras pointing at the video feed may be confused with the system NASA tracking stations on Earth used to convert the 320 interlaced signal to the NSTC 525 progressive standard. That's pretty much what the equipment did, and that signal was sent to satellites for transmission or via analog electrical signals on land line and undersea cable to NASA. It was also recorded on equipment that used 2" magnetic reel to reel tape and made available to TV networks worldwide for live broadcast via microwave transmission.
I understand what you're saying. But I've read in multiple places that the 320p Apollo 11 TV transmission from the moon converted to 525i at the ground tracking stations around the world was fed directly to networks across the globe. I had to do a few searches to find confirmation of my memory.I use hi def because people understand its quality in a statement. I agree with your definition. The news network pointed their news cameras at the monitor and broadcasted that grainy quality footage to the American public as if that was what NASA was seeing. Infact, you could see the feed from the moon very clear with much detail if you were at mission control. It's a long explanation why a camera pointed at TV tube with three color guns shows up grainy and has horizontal lines through it.
Good questions. I've never questioned the moon landing or gave it any thought really. But seriously, this thing looks like something made in your backyard. Looks like cellophane, aluminum foil & sheets of paper used to insulate inside buildings. Zoom in on it. HmmmmI’ve always questioned the go kart but never thought about the ridiculous contraption they landed in
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Joseph Gillespie on Instagram
533K likes, 22K comments - joe_gillespie_the_great on December 7, 2023www.instagram.com
Good questions. I've never questioned the moon landing or gave it any thought really. But seriously, this thing looks like something made in your backyard. Looks like cellophane, aluminum foil & sheets of paper used to insulate inside buildings. Zoom in on it. Hmmmm View attachment 1313314
Like This ?Cool. Now can you do the garage for the lunar speed car?![]()
I was glued to the TV watching Neil Armstrong exiting the lunar module live. I don't see a camera mounting/position on your picture of the LM to extend like the Canada arm on the space shuttle. To take a video of Armstrong stepping down from the ladder onto the Moon's surface, it must have been some extending arm with the video camera to record the event. I've searched and can't find anythng on the camera's operation. I'm not a denier, but am curious about this. Video from inside of the modular, I get it. And videos outside with camera mounted on a tripod.Like This ?
LRV (Rover) Compartment
View attachment 1313464
LRV photo showing it folded up and mounted on the backside of the Rover Hatch in it's stored position. The Hatch itself, becomes the floor of the Rover, since that Decent section remains on the Moon after the Accent section (With crew) returns to Command Module upon mission completion.
View attachment 1313465
LRV deployment sketch
View attachment 1313466
I was glued to the TV watching Neil Armstrong exiting the lunar module live. I don't see a camera mounting/position on your picture of the LM to extend like the Canada arm on the space shuttle. To take a video of Armstrong stepping down from the ladder onto the Moon's surface, it must have been some extending arm with the video camera to record the event. I've searched and can't find anythng on the camera's operation. I'm not a denier, but am curious about this. Video from inside of the modular, I get it. And videos outside with camera mounted on a tripod.
I was a camera technician for decades, working on all the cameras produced from the 50's to the digital age cameras. The Hassleblads were the best in the 70's, rated operation temperatures from -20 to 45 C. the camera used on the Moon , 500EL was motorized using battery. Neil said the Moon surface was 200F at the time of the landing.
The 500 series are all mechanical, no electrics so no problems with batteries going off due to the cold.
The 500EL motorized 500 series rely on batteries for film advance,
The camera was mounted inside the Modularized Equipment Stowage Assembly (MESA) in Quad 4 of the Lunar Module (LM) Descent Stage. This gave the capability of broadcasting the first steps of the astronauts as they climbed down the ladder of the LM at the start of the first EVA.
The Cameras of Apollo
www.ninfinger.org
You're losing me a bit here --- So you're stating that Westinghouse used a Hasselblad Camera ?The MESA is located to the left of the ladder. If my memory is correct, I saw Neil backing down on the ladder, climbing down, shown his right side.. I have pretty good memory, dating back some events in my life in early 50's. However, not claiming all 100%,lol.
The Hasselblad cameras had a leaf shutter in the lenses. The shutter mechanism was lubricated, maybe all lubricants were removed for the program to deal with extreme cold. Pictures shown the standard and 500mm lenses on the training cameras. I assume the actual cameras on the Moon had heat shields for Neil be able to use it in 200 F he had claimed. Heat would have made the lubricant melt on to the leaves, oil vapor on the first group of optics, make the shutter leaves stick together. That was the weak link of all Compur shutter's design.
Why does weight matter with the absence of gravity?There is no wind in space, and weight is everything, the foil you see keeps the direct sunlight off everything exposed under the surface, it is not part of the pressure structure. It keeps wires and plumbing from being overheated by direct sun exposure.
Lift off from earth.Why does weight matter with the absence of gravity?
i understand that, have yous seen the shuttle?Lift off from earth.
GM engineers say that shoebox chevys aerodynamically can't go over 200mph. Well, this guy (Tony Scott) with this car said hold my beer.
The Westinghouse unit was a video camera. The Hasselblad was a motorized camera for film advance, still shots.
Found the old footage of Neil stepping down on the ladder, showing his left side. correction on my initial observation.
Interestingly, comments are turned off for the conference on YT.
The weight of the Apollo LEM was 33,000 with fuel. The moon isn't absent gravity, it's 16.6% that of earth's. As you stated, weight was obviously a consideration as it had to be initially launched from Earth's gravity.Lift off from earth.
I could only guess how much that Hasselblad would fetch on auction if NASA recovers it in their next mission to the Moon.Quote from Digital Trends from an Apollo Hasselblad Camera article --- " Like the 500C on earlier missions, the HDC camera was adapted to withstand the rigors of space, using silver paint to help the camera move between -85 degrees and 248 degrees Fahrenheit. "
Very interesting article regarding the modifications made to these 500C cameras for these missions.
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50 years later, the first camera on the moon is still collecting lunar dust
Buzz Aldrin and Neil Armstrong weren't alone when they first stepped foot on the moon -- they had a Hasselblad camera in tow. Here, we look back at the camera that captured some of history's most iconic images, including our first steps on the moon and one of the best selfies to date.www.digitaltrends.com
1/10th the cost to go get it...I could only guess how much that Hasselblad would fetch on auction if NASA recovers it in their next mission to the Moon.![]()
Didn't even consider that, but hopefully it would be donated to the Smithsonian.I could only guess how much that Hasselblad would fetch on auction if NASA recovers it in their next mission to the Moon.![]()
That would be epic watching ballers biddingDidn't even consider that, but hopefully it would be donated to the Smithsonian.
Pick up the LRV, Barrett Jackson would love to wheel that baby across their stage![]()
Soviet Union crashed on it.I'm not a conspiracy theorist, but I think this one has always seemed to be a bit of a stretch.......
You mean to tell me, no other nation would follow suit to be in the "moon club" ? 50+ years later and we're the only ones. We're bad ass, but .........in the words of our fearless leader....."Cmon Man"![]()