Wednesday, 16 December 2009
Tuesday, 15 December 2009
Monday, 14 December 2009
Incidentally the draw for the raffle is due to take place before the start of our Christmas entertainment tomorrow night in the BSR...and last minute tickets will be on sale. For more information about the Adopt a Bear programme, click here. Why not give the gift of an adopted animal to someone this Christmas. Click here to see the wide range of animals up for adoption. If you adopt an animal, you get a cuddly toy, frequent updates about how your animal is doing and "loads more fun stuff".
The Large Hadron Collider (LHC) is a particle accelerator used by physicists to study the smallest known particles – the fundamental building blocks of all things. The LHC lies in a tunnel 27 kilometres in circumference, as much as 175 metres beneath the Franco-Swiss border near Geneva, Switzerland. In the LHC experiment, two beams of subatomic particles called 'hadrons' – either protons or lead ions – will travel in opposite directions inside the circular accelerator, gaining energy with every lap. Physicists will use the LHC to recreate the conditions just after the Big Bang, by colliding the two beams head-on at very high energy. Teams of physicists from around the world will analyse the particles created in the collisions using special detectors in a number of experiments dedicated to the LHC. There are many theories as to what will result from these collisions, but what's for sure is that a brave new world of physics will emerge from the new accelerator, as knowledge in particle physics goes on to describe the workings of the Universe
Sunday, 13 December 2009
Saturday, 12 December 2009
Friday, 11 December 2009
Thursday, 10 December 2009
Wednesday, 9 December 2009
"What If" is curated by leading London based design duo Anthony Dunne and Fiona Raby. It's definitely worth checking out but some exhibits may not be suitable for young children. For more information on the Science Gallery click here or for details on the What If exhibits click here. Admission is free too!
Tuesday, 8 December 2009
Monday, 7 December 2009
The phenomenon of radioactivity was accidentally discovered in 1896 when Henri Becquerel put a rock in a drawer. The rock contained uranium, and the drawer contained a photographic plate, which was well-wrapped and shielded from the light. Some weeks later, when Becquerel unwrapped and developed the plate, he found rays of light on the photograph emanating exactly from the point of contact where the rock had been resting on it. Being a scientist, he was astounded. He could think of no possible way in which an inert rock could spontaneously be releasing energy -- especially such a penetrating form of energy. Moreover, the energy release had taken place in total darkness, in the absence of any external stimulation -- there was no chemical reaction, no exposure to sunlight, nor anything else. Becquerel had discovered radioactivity.
However, it took until 1938 to discover that uranium could be split to release energy, that is fission. This was accomplished by Otto Hahn and Fritz Strassman. In fact, one tonne of natural uranium can produce more than 40 million kilowatt-hours of electricity. This is equivalent to burning 16,000 tonnes of coal or 80,000 barrels of oil. There are currently 104 operating U.S. nuclear power plants that produce over 20 percent of U.S. electricity.
Saturday, 5 December 2009
Friday, 4 December 2009
Young are born in maternity colonies in late June or early July. If the colony is disturbed, the mother may carry her baby to a new roost. The young bat grows quickly and is independent after about five weeks.