Showing posts with label radiation. Show all posts
Showing posts with label radiation. Show all posts

Monday, 5 June 2023

Back to the Moon

Very soon astronauts will be trying to revisit the moon. There is more than one reason why they didn't  go there for 50 years. It is very costly and there is a radiation problem. During the Apollo missions they didn't know that a solar flare from the sun would kill all the astronauts. I'm not sure how they will manage the dangers of deep space radiation. Perhaps the Artamis spaceships will have a giant water tank to shield the astronauts. NASA is now inviting private companies to bid for a contract to make the vehicles they will use to drive around on the moon surface. They will be different to the lunar rovers because they will continue to work on their own as a rover probes after the astronauts have returned to earth. I thought to myself, why don't they use bikes? Has anyone ever tried to ride a bike on the moon before? I don't know. 
The moon rotates very slowly, the day and the night both last for 2 weeks each, perhaps they will land on the night side of the moon. The moon has no tilt to its axis so the day and night on the moon are exactly 2 weeks throughout the year. The moon orbits the earth in 4 weeks so it always has one side of itself facing away from the earth. They call that the far side of the moon. We never see that side of the moon because the rotation of the moon is in sync with its orbit, I think they call that Tidal Locking. 

Perhaps they could get machines to build moon base and bury it in gravel from the moon. Perhaps that would shield them from deep space radiation and solar flares. 

Saturday, 3 September 2022

Over the Moon

According to the news I heard on my smart speaker, NASA has prepared the most powerful rocket in the world to take astronauts back to the moon. I think the rocket is called Artemis 1. I'm guessing there will be a family of Artemis rockets. 

I wonder what they will do about the Radiation problem. The Appollo astronauts in the 70's narrowly avoided death because they went to the moon when it wasn't being hit by solar flares, they didn't know at the time that the radiation from a solar flare would kill the crew if they were on the moon. I think the moon and the Earth are hit by Solar Flares quite often but the Earth's magnetic field is very powerful and deflects the flares away; the moon doesn't have a magnetic field so the surface of the moon gets bombarded by radiation. 

I was also wondering why train drivers are paid more than bus drivers in England, I think it is more difficult to drive a bus than a train. Is it because they have a better trade union or something like that? I don't know. I always see RMT on the news organising strike action. 

Sometimes the world doesn't make sense. 


Sunday, 12 April 2020

Radiation reality

A very common conversation I have with people is their concern about radio transmitters, they claim that radio transmitters cause cancer and alter our minds. They are very concerned about radiation and think that many diseases are connected to it including the Corona virus infections. 

I tell those people that most radiation you will receive in your life comes from your own body. The tissues in your body transmit infra red radiation in large amounts. Your body is literally shining like a super trooper stage lamp in a light that is slightly wider than the cells in your eyes so you can't see it, but it is there. 

Then they say radio waves are more dangerous than infra red waves and I say no, all frequencies of radio waves are much wider than infra red waves so they collide with your cells less often. Also ultra violet waves from the sun are about a third the width of your retina cells and they disintegrate as soon as they touch your cells so they release all their energy in just a few millimeters of tissue and that causes much more radiation so you should be more worried about sun light than radio waves. Turning a light bulb on in your home is more hazardous than all the radio waves that are around us. And no one worries about the sun which transmits radiation that is dangerous to our bodies. 

Think about it....

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