
No Sleep, No New Brain Cells
No sleep means no new brain cells
They also produced significantly fewer new brain cells in a particular region of the hippocampus. When the animals’ corticosterone levels were kept at a constant level, the reduction in cell proliferation was abolished. The results suggest that elevated stress hormone levels resulting from sleep deprivation could explain the reduction in cell production in the adult brain.
Sleep patterns were restored to normal within a week. However levels of nerve cell production (neurogenesis) were not restored for two weeks, and the brain appears to boost its efforts in order to counteract the shortage.
Related: Feed your Newborn Neurons – Can Brain Exercises Prevent Mental Decline? – How The Brain Rewires Itself
Light to Matter to Light
Light and Matter United (includes videos) by William J. Cromie:
Two years later, she brought light to a complete halt in a cloud of ultracold atoms. Next, she restarted the stalled light without changing any of its characteristics, and sent it on its way. These highly successful experiments brought her a tenured professorship at Harvard University and a $500,000 MacArthur Foundation award to spend as she pleased.
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Now Mallinckrodt Professor of Physics and of Applied Physics, Hau has done it again. She and her team made a light pulse disappear from one cold cloud then retrieved it from another cloud nearby. In the process, light was converted into matter then back into light. For the first time in history, this gives science a way to control light with matter and vice versa.
Related: 2006 MacArthur Fellows – 2005 MacArthur Fellows – Slowing Down Light
Arctic Seed Vault Design
‘Doomsday’ vault design unveiled
Dr Fowler said Svalbard, 1,000km (621 miles) north of mainland Norway, was chosen as the location for the vault because it was very remote and it also offered the level of stability required for the long-term project. “We looked very far into the future. We looked at radiation levels inside the mountain, and we looked at the area’s geological structure,” he told BBC News. “We also modelled climate change in a drastic form 200 years into future, which included the melting of ice sheets at the North and South Poles, and Greenland, to make sure that this site was above the resulting water level.”
Related: Arctic Seed Vault (June 2006) – How flowering plants beat the competition – Seeds, the book
Declining Science and Maths Degrees in UK
Report: Core science and mathematics degree courses in the UK 1998-2007
Related: Worldwide Science and Engineering Doctoral Degree Data – The World’s Best Research Universities – Science and maths degrees in ‘irreversible decline’ – Asia: Rising Stars of Science and Engineering – USA Under-counting Engineering Graduates
8 Year Old Math Prodigy Corrects Science Exhibit
Math prodigy corrects Discovery Place (Phb broke the link so I removed it):
Find the Error…
A jelly bean has a volume of about 1 cubic cm.This container is half a pyramid.
Its base measures 46 cm by 23 cm and its height is 72 cm.
Here’s the formula to find the volume: 1/3 x base area x height.
Now divide your answer by 2 since this is half a pyramid.
Now multiply your answer by 0.9 to account for spaces between the jelly beans.
The answer should be 22,853.
Did you find the error? (it would be better with a photo but I can’t find one.
Engineers – Changing Career Needs
Are US engineers up to the global challenge?
Related: USA Under-counting Engineering Graduates – Engineers in the Workplace – Educating the Engineer of 2020: NAE Report – Engineering Shortage or surplus?
International Linear Collider
Price of Next Big Thing in Physics: $6.7 Billion
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Physicists acknowledge it could be years before the world commits to building the ILC, although jockeying for the costly privilege of hosting the giant machine has already begun. For its purposes, the committee priced three different sites: near CERN in Switzerland, at the Fermi National Accelerator Laboratory in Batavia, Ill, and in the mountains of Japan, and found that the so-called site-specific costs, like digging tunnels and shafts and supplying water and electricity, were nearly the same in each case, about $1.8 billion.
The host country would be expected to shoulder these costs, the design collaboration said, while the remaining $4.9 billion, which covers high-tech things like magnets and control rooms, would be split among all the participants. Extras like auditoriums, cafeterias and living space for scientists were not included in the cost estimate, since at some places like Fermilab they already exist.
World’s Largest Dry-Transport Ship

Blue Marlin world’s largest dry-transport vessel:
More sea giant photos – Photo – credit and larger image – Flying Luxury Hotel – 60 Acre (24 hectare) Spider Web – Giant Wasp Nests – Solar Tower Power Generation
Chinese Stem Cell Therapies
Related: Diplomacy and Science Research – China’s Gene Therapy Investment – Science and Engineering in Global Economics – Edinburgh University and Harvard University Stem Cell Centers – Singapore woos top scientists with new labs
