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None extreme enough or long lasting enough to be overly dangerous.
the extreme radiation
What?
the non-pressurized suits
What?
the 500 degree swing in tempertures from sunlight to shadow
No cardboard.
the cardboard taped sides of the lander
Um. Didn't you just say that the landing rocket blew the dust away?
but photos underneath the nozzle after landing show no disturbance
Source?
the fact that NASA says that now they have no affective means of shielding humans from the intensive radiation after 25,000 thousand miles out
c'mon person...do some real research.
c'mon people...deny ignorance
Originally posted by jimmyx
the extreme radiation,
the non-pressurized suits
the 500 degree swing in tempertures from sunlight to shadow
, the cardboard taped sides of the lander
the fact that the film shot out the window of the landing showed dust spewing all over, but photos underneath the nozzle after landing show no disturbance
the fact that NASA says that now they have no affective means of shielding humans from the intensive radiation after 25,000 thousand miles out, but fifty years ago they did
armstrong lived to 82 years old, with no radiation poisoning.
c'mon people...deny ignorance
Originally posted by TheDagDa
reply to post by DJW001
Just playin a little devil's advocate. I highly suggest you read his whole article, but here are a few more tidbits I like.
"To briefly recap then, in the twenty-first century, utilizing the most cutting-edge modern technology, the best manned spaceship the U.S. can build will only reach an altitude of 200 miles.
But in the 1960s, we built a half-dozen of them that flew almost 1,200 times further into space. And then flew back. And they were able to do that despite the fact that the Saturn V rockets that powered the Apollo flights weighed in at a paltry 3,000 tons, about .004% of the size that the principal designer of those very same Saturn rockets had previously said would be required to actually get to the Moon and back (primarily due to the unfathomably large load of fuel that would be required).
To put that into more Earthly terms, U.S. astronauts today travel no further into space than the distance between the San Fernando Valley and Fresno. The Apollo astronauts, on the other hand, traveled a distance equivalent to circumnavigating the planet around the equator nine-and-a-half times! And they did it with roughly the same amount of fuel that it now takes to make that 200 mile journey, which is why I want NASA to build my next car for me. I figure I’ll only have to fill up the tank once and it should last me for the rest of my life.
"Perhaps it’s not surprising then that NASA now takes the position that the original footage has been missing since “sometime in the late 1970s.”
Unfortunately, it isn’t just the video footage that is missing. Also allegedly beamed back from the Moon was voice data, biomedical monitoring data, and telemetry data to monitor the location and mechanical functioning of the spaceship. All of that data, the entire alleged record of the Moon landings, was on the 13,000+ reels that are said to be ‘missing.’ Also missing, according to NASA and its various subcontractors, are the original plans/blueprints for the lunar modules. And for the lunar rovers. And for the entire multi-sectioned Saturn V rockets.
There is, therefore, no way for the modern scientific community to determine whether all of that fancy 1960s technology was even close to being functional or whether it was all for show.
Originally posted by TheDagDa
reply to post by DJW001
Just playin a little devil's advocate. I highly suggest you read his whole article, but here are a few more tidbits I like.
"To briefly recap then, in the twenty-first century, utilizing the most cutting-edge modern technology, the best manned spaceship the U.S. can build will only reach an altitude of 200 miles. But in the 1960s, we built a half-dozen of them that flew almost 1,200 times further into space. And then flew back. And they were able to do that despite the fact that the Saturn V rockets that powered the Apollo flights weighed in at a paltry 3,000 tons, about .004% of the size that the principal designer of those very same Saturn rockets had previously said would be required to actually get to the Moon and back (primarily due to the unfathomably large load of fuel that would be required).
To put that into more Earthly terms, U.S. astronauts today travel no further into space than the distance between the San Fernando Valley and Fresno. The Apollo astronauts, on the other hand, traveled a distance equivalent to circumnavigating the planet around the equator nine-and-a-half times! And they did it with roughly the same amount of fuel that it now takes to make that 200 mile journey, which is why I want NASA to build my next car for me. I figure I’ll only have to fill up the tank once and it should last me for the rest of my life.
"Perhaps it’s not surprising then that NASA now takes the position that the original footage has been missing since “sometime in the late 1970s.”
Unfortunately, it isn’t just the video footage that is missing. Also allegedly beamed back from the Moon was voice data, biomedical monitoring data, and telemetry data to monitor the location and mechanical functioning of the spaceship. All of that data, the entire alleged record of the Moon landings, was on the 13,000+ reels that are said to be ‘missing.’ Also missing, according to NASA and its various subcontractors, are the original plans/blueprints for the lunar modules. And for the lunar rovers. And for the entire multi-sectioned Saturn V rockets.
There is, therefore, no way for the modern scientific community to determine whether all of that fancy 1960s technology was even close to being functional or whether it was all for show. Nor is there any way to review the physical record, so to speak, of the alleged flights. We cannot, for example, check the fuel consumption throughout the flights to determine what kind of magic trick NASA used to get the boys there and back with less than 1% of the required fuel. And we will never, it would appear, see the original, first-generation video footage.
You would think that someone at NASA would have thought to preserve such things. No wonder we haven’t given them the money to go back to the Moon; they’d probably just lose it."
Originally posted by DJW001
Let's see... the engineers who actually designed it, for starters. Then the machinists who read the blueprints and fabricated the parts to a demanding tolerance. The people who assembled the parts based the blueprints. the quality assurance people who made sure that the parts met the specifications, the people who tested all the sub-systems, the people who tested the assembled lander... pretty much everybody, actually.
Every component was tested and tested again. They would know everything worked. NASA did not design the lander, Grumman did. Everyone who participated in that design, construction and testing process would know that it worked.
Apparently more americans believe that there will be a zombie apocalypse than believe that we have actually been to the moon....
I mean seriously
The amazing photos of earth from the moon....? CGI was not even a thing then let alone at that level...
The laser mirror/reflectors on the moon?
The Apollo rockets went somewhere how many people witnessed the launch with their own eyes?
what they just went into orbit and stuck around for a few days and came back sat in quarantine and popped out and pretended they'd been to the moon?
If anythings suspect at all its why we stopped going?
Originally posted by turbonium1
It's now known that aluminum is worse than rice paper for radiation protection, because it actually splits it up into many more lethal particles. Not a good thing for humans.
Originally posted by turbonium1
The LM was untestable on Earth, and we can't build an Earth-version, even today.They hold 'lunar lander' contests, but so far no luck! Of course, the LM worked!
Originally posted by Zaphod58
Aluminum makes a better shield than a lot of other materials that could have been used. Aluminum makes a good shield because it's not nearly as dense as lead, or other metals. You don't want dense materials, you want ones that aren't going to have a lot of "spalling" from secondary effects.
Originally posted by captainpudding
Would you care to provide any proof that the known properties of bremsstrahlung (dense is worse when shielding against high energy particles) were proven wrong? Are you also claiming that x-ray machines, which use the established principles of bremsstrahlung don't actually work?
Originally posted by captainpudding
If the moon landing being a hoax is so obvious, why do the people who support it feel the need to lie so much?
Originally posted by Zaphod58
reply to post by turbonium1
You're comparing an x-ray machine to cosmic radiation? Nice try but try again. On earth aluminum makes a horrible afield, in space it's the perfect shield. Cosmic radiation is much different from an x-ray machine.
Originally posted by turbonium1
You said (from wiki answers which is a worse source than Wikipedia):
For the forms of radiation you are likely to encounter in the common medical and industrial settings you will find that most people talk about radiation shielding against x-ray and gamma. One of the best metals to shield against radiation is depleted Uranium, but this is expensive and hard to find, so the next best cheap, common metal is lead.
Cosmic rays attract great interest practically, due to the damage they inflict on microelectronics and life outside the protection of an atmosphere and magnetic field, and scientifically, because the energies of the most energetic ultra-high-energy cosmic rays (UHECRs) have been observed to approach 3 × 1020 eV,[5] about 40 million times the energy of particles accelerated by the Large Hadron Collider.[6] At 50 J,[7] the highest-energy ultra-high-energy cosmic rays have energies comparable to the kinetic energy of a 90-kilometre-per-hour (56 mph) baseball.
One problem is that x-rays and gamma come in different energy levels (like different colors of light). The energy is measured in keV or meV (1000 keV = 1 meV). A moderately strong medical x-ray machine might generate x-rays with energies around 80 to 100 keV.
Aluminum is a poor radiation shield - to be specific, in shielding the radiation beyond LEO.
Particle radiation consists of a stream of charged or neutral particles, both charged ions and subatomic elementary particles. This includes solar wind, cosmic radiation, and neutron flux in nuclear reactors.
Alpha particles (helium nuclei) are the least penetrating. Even very energetic alpha particles can be stopped by a single sheet of paper.
Beta particles (electrons) are more penetrating, but still can be absorbed by a few millimeters of aluminum. However, in cases where high energy beta particles are emitted shielding must be accomplished with low density materials, e.g. plastic, wood, water or acrylic glass (Plexiglas, Lucite) [2]. This is to reduce generation of Bremsstrahlung X-rays. In the case of beta+ radiation (positrons), the gamma radiation from the electron-positron annihilation reaction poses additional concern.