Are you, really you ?

Are you, really you ?

Admin medical, people, Science 0 Comments

The painting “Nude, Green Leaves and Bust” by Pablo Picasso became the most expensive in the world when it sold for $106M at Christie’s in New York in 2010. However, if you had a copy, a fake, one that looked identical but was not the original, it would be worth a tiny fraction of that, maybe the cost of the materials required to make it plus a bit for it aesthetic value. But what if you took all the atoms of the original and changed them for identical new atoms so that it looked exactly the same. Would it still the …

Why is the sun hot ?

Why is the Sun hot ?

Admin Science, space 0 Comments

Why is the sun hot?,  now before you jump on the comments and say “because it’s the sun, stupid” think about it, our sun is basically a giant nuclear reactor at the centre of our solar system but not like the ones on earth. They create energy by nuclear fission, that is they split large atoms like uranium into smaller lighter ones and in the process it releases large amount of energy. Atomic bombs also work in the same way which is why they are so destructive. The sun creates its energy by nuclear fusion, the most efficient way to …

Why cant you fly a plane into space?

Why can’t we fly a plane into space ?

Admin planes, space, Technology 0 Comments

  Why can’t we fly a plane into space, what stops it from just flying higher and higher until we are in space? Well, there a several issues but assuming we are in something like a normal jet airliner, then one of the main problems is the air or lack of it as we get closer to space. A plane flies because as it is propelled forward, the wings, which are shaped to make the air flow faster over the top of them than the bottom, generate lift. As the plane goes faster the wings creates more lift and when the …

Apollo, the Lunar Dust and NASA's Dirty Problem

Apollo, the Lunar Dust and NASA’s Dirty Problem

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Sometimes the smallest things can be one of the biggest headaches. During the Apollo missions of 1969 to 72,  the tiny particles of lunar dust turned out to be a major issue. Described as being as fine as talc but as rough as sandpaper, it also has properties that make it dangerous for both men and machines and has been cited as a bigger problem for future astronauts than radiation by some scientists. The lunar surface is covered in a thin layer of dust which has been created by the bombardment of meteorites and micrometeorites over millions of years. These …

How did Apollo deal with the Van Allen radiation belts ?

How did Apollo deal with the Van Allen radiation belts ?

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One of the most hotly contested procedures during the Apollo missions was the how NASA dealt with the issue of the Van Allen belts, the naturally occurring belts of radiation that surround the earth, both on the journey to the moon and returning from it. To some this just proves the point that NASA never went to the moon because they contest that if the crew went through the Van Allen belts they would have received a lethal dose of radiation and died during or shortly afterwards but as we know that didn’t happen, so how did they achieve this. …