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10:49 PM
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Which do you enjoy more, NASA forgetting to rake out the LEM landing blast crater, or the exploding, no thrust no dust take off?
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:LHP598:MV8zOTY5MzM0XzcxODIzMzc1XzY4REI2QThC] [quote:Drone#6:MV8zOTY5MzM0XzcxODIyMDQ0XzhFMEJEMEUy] [quote:Violetag:MV8zOTY5MzM0XzcxODIxODg1XzQ5MUY1MTJF]I liked the part where the Nasa guy explained it would be a problem to get outside the radiation belt now because they "destroyed" the tech they had to do that in the past. So they cant do anymore what they could do 50 years ago lol sounds legit. There was a post here awhile back linking to a guy from nasa explaining why the radiation belt would be a problem "now" when trying to go to mars. [/quote] Yes, the 'destroyed' 'tech' was some thin mylar and aluminium alloy. Ironically any heavy metal (which aluminium / aluminum is classed as for this purpose) has a nasty habit of creating showers of secondary radiation. For this reason the Orion team are looking at hydrogen rich plastics instead because when radiation hits hydrogen there isn't much secondary - i.e. no neutrons. This will reduce the X-rays and neutron showers inside the crafts.[/quote] the Apollo spacecraft also had polyethylene as part of its insulation for that purpose. [quote:Drone#6:MV8zOTY5MzM0XzcxODIyMDQ0XzhFMEJEMEUy] Additionally the Van Allen belt is just one (2 - 3) radiation speed-bump(s), the rest of space is also full of radiation from the sun, galaxy and cosmos. Some non solar radiation is shielded by the Sun's magnetic field (forming another speed-bump for later!) but enough still gets through to cook biological lifeforms. Then you get secondary radiation from the lunar surface itself, 2-3 days in open space is pretty damaging. There's even a NASA page about the perils of secondary radiation from the lunar surface.[/quote] Quantify it. Prove it was too much for the short time they went. Bet you can't. [quote:Drone#6:MV8zOTY5MzM0XzcxODIyMDQ0XzhFMEJEMEUy] NASA casually sums up the radiation exposure in Apollo to a 'few chest Xrays', forgetting of course that chest X-rays use film that gets 'fogged' by the X-ray radiation, turning blacks to clear areas away from bones etc. getting in the way. Also X-ray operators retreat to lead lined rooms for this procedure for a reason. [/quote] X-ray operators would be exposed to far more than a "few" even in a week if they didn't retreat. Failed analogy from you. [quote:Drone#6:MV8zOTY5MzM0XzcxODIyMDQ0XzhFMEJEMEUy] So even the X-ray lie fails because if I take all the 160 ASA Apollo film and put in inside an X-ray beam for a few chest X-rays I'd not get those perfect starless blacks that they get on every single roll for every single mission. Yes, every single black on every single Apollo image proves the photo was faked and never even went near space.[/quote] So prove the amount of x-rays the film was exposed to should have been too much. [quote:Drone#6:MV8zOTY5MzM0XzcxODIyMDQ0XzhFMEJEMEUy] Tnen there's the risk of solar flares, the time of the missions was a solar maxima and there actually was a huge solar flare between two trips, even if the rockets had worked it would have been solar flare roulette at best.[/quote] And there were none directed at Earth DURING a mission. [/quote]
Original Message
Shouldn't they have gradually lifted the model to simulate rocket thrust rather than blowing it up with explosives, and throw some dust under it?
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