If you believed they put a man on the moon....
Comments
-
-
-
-
-
-
Advertisement
-
-
-
-
-
-
Advertisement
-
Moderators, Science, Health & Environment Moderators, Society & Culture Moderators Posts: 60,111 Mod ✭✭✭✭
Join Date:Posts: 59040
I'm not debating the film technology of the 60s argument as it is nonsense.
Nope you're not debating film and video technology of the 1960's quite simply because you don't understand it and it ruins your daft theories.
What you are saying about the alpha and beta radiation is not true. NASA have already spent billions on the "Orion" programme, which is dedicated to solving the radiation problem:
It might help if you read a book and had a clue about, well pretty basic stuff.
Alpha radiation. Because of their charge and large mass, alpha particles are easily absorbed by materials, and they can travel only a few centimetres in air. They can be absorbed by tissue paper or by the outer layers of human skin. They typically penetrate skin about 40 micrometres, equivalent to a few cells deep.
Beta Radiation. Although the beta particles given off by different radioactive materials vary in energy, most beta particles can be stopped by a few millimeters of aluminium. However, this does not mean that beta-emitting isotopes can be completely shielded by such thin shields: as they decelerate in matter, beta electrons emit secondary gamma rays, which are more penetrating than betas per se. Shielding composed of materials with lower atomic weight generates gammas with lower energy, making such shields somewhat more effective per unit mass than ones made of high-Z materials such as lead.
Here's a watch you can go out and buy today:
It uses tritium gas encased in glass tubes emitting beta radiation that excites phosphor so it glows in the dark without external excitation. An everyday object worn next to the skin. Before this tech tritium was painted directly onto the dial and the case and plastic crystal stopped the radiation. At one time radium was used but it's a gamma emitter so way more penetrating, even so the danger was for watchmakers and those making the dials.
Cosmic rays and Xrays and gamma radiation are the risk factors, not beta or alpha. However it's down to exposure times and dose.
So what you're claiming is not true. Not even close to true. And note what yer man in the video said about the risk to delicate electronics. There are lots of satellites above us that have passed through these belts and didn't get fried. Same for the many space probes. Then again you probably don't believe in them either... We're more risk averse these days and NASA is much less the old style kick the tyres, light the fires test pilot driven entity than it was. Men and a society and NASA culture who came to terms(mostly) with other test pilots dying on the regular. Apollo 8 was the first all up test of the Apollo system and it was crewed and headed for the moon. No way would they chance something like that today, and they only chanced it because at that stage they were quite convinced the Soviets were nipping at their heels in the race.
Yesterday they scrubbed the Artemis launch because of some dodgy readings from an engine and an earlier possible hydrogen leak. In 69 on Apollo 11 they found a hydrogen leak, paused the countdown and sent a bloke in a hard hat with a spanner out to the pad and up the gantry on a fully fuelled pointy bomb with the explosive potential of a tactical nuke with three people sitting at the top of that to see if he could sort it.
And how they sorted it was by pouring water over the valve which froze solid and sealed it and then used another valve to take up the slack. Again, no way in hell would they risk that today.
Rejoice in the awareness of feeling stupid, for that’s how you end up learning new things. If you’re not aware you’re stupid, you probably are.
6 -
-
-
-
-
-
-
-
-
-
Advertisement
-
-
-
-
-
-
-
-
-
-
Advertisement
-
![[Deleted User]](/applications/dashboard/design/images/defaulticon.png)
