Moon Hoax Debate - The Radiation Issue

[Arouet]

[Misha]

[Arouet]

[Arouet]

[really?]

All good points you bring up Arouet. One can make a reasonable guess why White asks only questions that bring him back to his original premise.

[Arouet]

[Arouet]

Ok, so Part 7 ended on promising note of some real substance. White continues on the film theme in Part 8: http://www.youtube.com/watch?v=McEPM0Sccxk

He shows an expert who did some testing on what I presume to be similar film and showed how exposure to 5 rems fogged and diluted the negatives. So far so good. He brings in a counterpoint from clavius, critiquing the experiment, suggesting that the dosage applied in the experiment was more than the film would have received in space. So far, I like the way White is framing this issue.

White acknowledges a tiny bit of truth to the clavius position. but accuses Winderly (sp? the clavius guy) of misleading his readers. White notes that Winderly appears to be basing his numbers on the low range of space radiation but that the levels of radiation can be significantly higher. He notes that at the low end the film might be safe but not on the high end. He shows some information on lunar xrays, protons and the like.

He notes that clavius critiques Groves for not having used the film and camera that was used on the mission. Winderly in a video claims that he was using an identical camera to that used on Apollo. White says that he wrote to the company, and shows an email reply saying that the camera used on the mission was the only one made of its kind. White reasonably asks how then did Winderley get one?

The part ends there, so again I'll hold off any detailed analysis until the segment is concluded.

I note that this film argument is to this point noticeably better argued than the rest of the series to date. Notice, that it is now entering its third part, indicating the benefit of spending more time on a topic produces a more well rounded and substantive analysis.

I think White raises some good questions here that I would certainly like answered. Let's see how the next part goes.

[Arouet]

[SydneyPSIder]

There appears to be a lot NASA didn't know in the 60s:


December 31, 2012

As if space travel was not already filled with enough dangers, a new study out today in the journal PLOS ONE shows that cosmic radiation – which would bombard astronauts on deep space missions to places like Mars – could accelerate the onset of Alzheimer's disease.

For over 25 years, NASA has been funding research to determine the potential health risks of space travel in an effort to both develop countermeasures and determine whether or not the risks warranted sending men and women on extended missions in deep space

Since that time, several studies have demonstrated the potential cancer, cardiovascular, and musculoskeletal impact of galactic cosmic radiation. The study out today for the first time examines the potential impact of space radiation on neurodegeneration, in particular, the biological processes in the brain that contribute to the development of Alzheimer's disease. O'Banion – whose research focuses on how radiation affects the central nervous system – and his team have been working with NASA for over eight years.

The researchers studied the impact of a particular form of radiation called high-mass, high-charged (HZE) particles. These particles – which are propelled through space at very high speeds by the force of exploding stars – come in many different forms. For this study the researcher chose iron particles. Unlikely hydrogen protons, which are produced by solar flares, the mass of HZE particles like iron, combined with their speed, enable them to penetrate solid objects such as the wall and protective shielding of a spacecraft.

"Because iron particles pack a bigger wallop it is extremely difficult from an engineering perspective to effectively shield against them," said O'Banion.

A portion of the research was conducted at the NASA Space Radiation Laboratory at Brookhaven National Laboratory on Long Island. NASA located its research operation at Brookhaven to take advantage of the Lab's particle accelerators which – by colliding matter together at very high speeds – can reproduce the radioactive particles found in space.

The researchers specifically wanted to examine whether or not radiation exposure had the potential to accelerate the biological and cognitive indicators of Alzheimer's disease, particularly in individuals who may be predisposed to developing the disease. To accomplish this they chose study the impact on animal models of Alzheimer's disease. These particular models have been extensively studied and scientists understand the precise timeframe in which the disease progresses over time.

At Brookhaven, the animals were exposed to various doses of radiation, including levels comparable to what astronauts would be experience during a mission to Mars. Back in Rochester, a team of researchers – including URMC graduate student Jonathan Cherry, who was first author on the paper – evaluated the cognitive and biological impact of the exposure. The mice underwent a series of experiments during which they had to recall objects or specific locations. The researchers observed that mice exposed to radiation were far more likely to fail these tasks – suggesting neurological impairment – earlier than these symptoms would typically appear.

The brains of the mice also showed signs of vascular alterations and a greater than normal accumulation of beta amyloid, the protein "plaque" that accumulates in the brain and is one of the hallmarks of the disease. "These findings clearly suggest that exposure to radiation in space has the potential to accelerate the development of Alzheimer's disease," said O'Banion. "This is yet another factor that NASA, which is clearly concerned about the health risks to its astronauts, will need to take into account as it plans future missions."

Read more at: http://phys.org/news/2012-12-houston-pr ... n.html#jCp

Funny how well the Apollo astronauts seemed to survive with no such health problems! It's fortunate they haven't put anyone in harm's way yet!

[really?]

[Arouet]

[really?]

[SydneyPSIder]

[Misha]

Guys,

I see you folks have seen the Alzheimer's radiation article. A lot of lead or two meters of water surrounding the craft to protect from radiation. Galactic Cosmic radiation that is. If we want to go to Mars I would think we would have spent the years in between knowing definitively the effects of long term exposure of radiation by putting a base on the moon. Project Horizon was such a proposed endeavor but was cancelled.

http://abcnews.go.com/Health/astronauts ... OS7aLYQLUS

[Misha]