And this was on the radio this week, where all earth's water came from. http://www.bbc.co.uk/news/science-environment-24488604
Za, Come to think of it, I think it must have been. I first saw this experiment on a Open University program. Shirley Bassey provided the soundtrack.
good day dbf.today,11:18am.re:diamonds aren't forever on Saturn and Jupiter.it was very interesting as a story.but lets face it.its pure conjecture.if there was any truth in what they say.the diamond industry would be breaking there necks to get there before the melted.i don't think it will happen.thanks for an enjoyable story.regards bernard85
Quite the opposite, the diamond industry is very much interested in keeping the outer planets at a long arms length. Think of rhe consequences of a diamond glut on the market Now we need to find another planet for rubis, another for emeralds, another for topaz, etc, etc
http://www.bbc.co.uk/news/science-environment-27688511 One mystery replaced by another: Traces of Theia have been found on the Moon but its composition is very similar to that of the Earth? Researchers have found evidence of the world that crashed into the Earth billions of years ago to form the Moon. Analysis of lunar rock brought back by Apollo astronauts shows traces of the "planet" called Theia. The researchers claim that their discovery confirms the theory that the Moon was created by just such a cataclysmic collision. The study has been published in the journal Science. The accepted theory since the 1980s is that the Moon arose as a result of a collision between the Earth and Theia 4.5bn years ago. Theia was named after a goddess in Greek mythology who was said to be the mother Selene the goddess of the Moon. It is thought to have disintegrated on impact with the resulting debris mingling with that from the Earth and coalescing into the Moon. It is the simplest explanation, and fits in well with computer simulations. The main drawback with the theory is that no one had found any evidence of Theia in lunar rock samples. Earlier analyses had shown Moon rock to have originated entirely from the Earth whereas computer simulations had shown that the Moon ought to have been mostly derived from Theia Alien origin Now a more refined analysis of Moon rock has found evidence of material thought to have an alien origin. According to the lead researcher, Dr Daniel Herwartz, from the University of Goettingen, no one has found definitive evidence for the collision theory, until now. "It was getting to the stage where some people were suggesting that the collision had not taken place," he told BBC News. "But we have now discovered small differences between the Earth and the Moon. This confirms the giant impact hypothesis." But the difference, some say, could be explained by material absorbed by the Earth after the Moon formed. And Prof Alex Halliday of Oxford University, is among many scientists who are surprised at the difference between the Theian material found in the Moon rock and the Earth is so small. "What you are looking for is a much bigger difference, because that is what the rest of the Solar System looks like based on meteorite measurements," he said. Dr Herwartz measured the difference in what is called the isotopic composition of the oxygen contained in rocks on Earth and Moon rock. This is the ratio of different forms of oxygen. Studies of meteorites from Mars and the outer solar system show that these ratios are markedly different -rather like a fingerprint. So Prof Halliday and others are puzzled by the fact that the fingerprints of Earth and Theia seem almost identical. Similar composition One possibility is that Theia was formed very close the Earth and so had a similar composition. If that was the case it raises the possibility that the assumption that each planet in the current Solar System has a markedly different fingerprint that needs to be revisited, according to Prof Halliday. "It raises the question of how well the meteorites from Mars and the asteroid belt in the outer Solar System is representative of the inner Solar System? We do not have samples from Mercury or Venus. "They may well be similar to the Earth. If that is the case then all the arguments over the similarities of the Earth and the Moon fall away," he told BBC News. Dr Mahesh Anand from The Open University described the research as "exciting" but noted that the data was from just three lunar rock samples. "We have to be cautious about representativeness of these rocks of the entire Moon, and so further analysis of a variety of lunar rocks is required for further confirmation," he said. Other theories have been proposed to explain why the composition of the Earth and Moon are so similar: one is that the Earth spun much faster before impact, another is that Theia was much larger than current models suggest. An alternative, controversial, theory proposed by Prof Rob de Meijer of Groningen University in the Netherlands was that the Earth's crust and mantle was blown into space by an accumulation of nuclear material 2,900km (1,800 miles) below the surface. It was this debris that clumped together to form the Moon. He told BBC News that the new finding - demonstrating that there was a difference in the composition of the Earth and the Moon - did not change his view. "The difference is too small," he said. "We don't know how the Moon was formed. What we need are manned missions to the Moon and a search for rocks deeper under the lunar surface, that have not been polluted by meteorite impacts and the solar wind." Rock and roll: it's taken more than 40 years to discover traces of Theia in samples collected by the Apollo astronauts
http://www.telegraph.co.uk/travel/picturegalleries/11103709/Astronomy-Photographer-of-the-Year-2014-winners-announced.html http://www.bbc.co.uk/news/science-environment-29245828 Astronomy Photographer of the Year 2014 From a close up look at the swirling angry gases on the Sun, to a serene night sky filled with a shimmering green aurora - the annual competition showcasing the cosmos beyond our planet has produced some stunning photographs. There were hundreds of entries from 51 countries. But which ones made the winners' list? Take a look with astronomer judges - Maggie Aderin-Pocock and Marek Kukula.
good day dbf.m.yesterday.12:10pm.re:astronomy photographer of the year.great link.brilliant photo's.thanks for sharing regards bernard85 :mad111:
got a good shot of the moon early doors Blood Moon in pictures: Total 'supermoon' lunar eclipse seen around the world http://www.telegraph.co.uk/news/picturegalleries/worldnews/11894255/Blood-Moon-in-pictures-Total-supermoon-lunar-eclipse-seen-around-the-world.html http://www.telegraph.co.uk/news/11895052/Supermoon-lunar-eclipse-2015-Amazing-pictures-of-once-in-a-generation-event-live.html
The last one was 38 years ago....... http://www.newser.com/story/217365/something-special-will-happen-to-the-moon-on-christmas-day.html?utm_source=fastcompany.com&utm_medium=referral&utm_campaign=pubexchange_module
I wish I understood more about this http://www.bbc.co.uk/news/science-environment-35524440 videos in link
To find out how a mechanical clock works you take two of them and bash them into each other at a very high speed and watch very closely as all the cogs and springs fall out. Then you try and work out what makes them tick. That's an explanation of how a giant collider works. Or say it is the year 1935 when Schrodinger suggested that you put a cat in a box containing a radioactive source, a detector that records the presence of radioactive particles ( say, a Geiger counter ), a glass bottle containing a poison such as cyanide, and a live cat. Einstein said this was the "prettiest way" to show that the wave representation of matter is an incomplete representation, but I maintain that neither of them knew anything about cats. On the other hand, if you understood how pretty this was you could probably try to make an atomic bomb, and ten years later... Photons that travel for 15 thousand million years and think it is the same time as the Big Bang...why, of course ! Why didn't I think of that ? Gravitational waves and black holes, hmm, that's a three pipe problem.... It's very interesting and I'm glad people are trying to find out but I can't explain anything about it.