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Even the ancient astronomers were serious enough about their hobby.
June 2, 2010 on 9:56 am | In Science Fiction Technology, Technology | No CommentsIf you spend a day at an astonomy gathering, or go all out and attend a solar eclipse somewhere in the world, the one thing you will notice is how seriously amateur astonomers take their hobby. This is one pastime that can become a time consuming and all encompassing passion. On view will be telescopes and lens that come in all shapes, sizes and designs. Some that people even put together themselves, others that have paid a fortune for their equipment. And all for looking up at the stars.
Ancient man did all this but without the fancy rigging. And they knew a lot more about the stars than many of us know and learn’t it all the hard way. A stone formation, The Hurlers, on Bodmin Moor in England has been baffling visitors, and scientists, for many years. The Hurlers were placed in a pattern 1500 years ago and it seems an amateur astonomer has been the one person who has solved their mystery. The Hurlers are formed in a pattern that mirror the belt of Orion and it is believed it was used as a calendar by inhabitants of the area at the time.
This is when local people were going from being hunter-gatherers to being farmers and used the Hurlers as a way to monitor the changes in season.
Popularity: 30% [?]
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Time to stop polluting the universe.
June 2, 2010 on 9:35 am | In Science Fiction Technology, Technology | No CommentsThere is so much junk whizzing around Earth that any collision in space could now cause a knock-on effect that would destroy vital satellites, according to a Pentagon report. A crash between a satellite and a hunk of space junk could send thousands of pieces of debris spinning out, which could destroy other satellites. Television signals, weather forecasts, global-positioning navigation and international phone connections are just some of the services at risk.
The uncontrolled chain reaction could make some orbits unusable for both commercial or military satellites, according to the U.S Space Posture Review sent to Congress in March. Since the first object, Sputnik One, was launched into space 53 years ago, mankind have created a swarm of perhaps tens of millions of items of debris.
The rubbish circling the planet comes from old rockets, abandoned satellites and missile shrapnel.
Popularity: 19% [?]
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Listen Mr Dinosaur – chew your food or else your neck will grow!
May 15, 2010 on 9:39 pm | In Science Fiction Technology | No CommentsGulping down food might have helped plant-eating dinosaurs grow into giants. If they had stopped to chew, they would have run out of eating time, scientists say. But guzzling let them get food into their stomachs quickly. This may explain why dinosaurs such as ‘argentinosaurus’, which weighed up to 100 tons, had very long necks and such tiny heads.
Animals that eat a lot and chew, such as elephants, need big heads to accommodate jaw muscles and molars. But a large head would not be needed if it did not chew. Long necks would also have helped big dinosaurs get to food without moving from a particular spot. While elephants need to spend 18 hours eating to satisfy their appetites, a giant dinosaur would have needed an impossible 30 hours a day.
This has been a puzzle for scientists wondering how gigantic plant-eating dinosaurs known as sauropods got to be so big. Well now we know!
Popularity: 22% [?]
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