MRI scans of older people show major differences between searchers and non-searchers. After seven hours of Internet experience, those differences disappear. Honest? Could changing the brain be this easy?
Underground nuclear tests have been the biggest roadblock to a comprehensive test ban. How are these explosions detected, and how reliably?
Swine flu - Thursday, May 14th, 2009
The epidemic fades, with 61 confirmed deaths and 5,251 cases so far. Were the public health warnings overdone? Or did they help stem the pandemic? Your guide to the time of finger-pointing, flu-style.
The feds put out a massive report on American birds, and the #1 source of data is – amateurs! What is the role of amateurs in ornithology? Hint: if you want to survey 800 species on 3.5 million square miles…
Last week, Pres. Obama revoked the limits on studies of cells that can become any body cell. What was lost in eight years of limits on embryonic stem cells? What’s ahead?
Biology operates on the nanometer scale, and now ultra-small technology is producing monster benefits for genetic analysis, cell biologists, and the treatment of blinding glaucoma.
What you can’t see can still interest you. Archeologists use radar, magnetic, electrical gizmos to see through the ground, find places to dig.
Don’t know much about Science Education: A new survey shows three out of every four US adults do not feel they have a good understanding of science.
Hybrid cars and fuel cells increase auto efficiency and reduce pollution, but it’s a long struggle from the idea to the reality.
In 1997, Dolly was BIG NEWS. What did Dolly teach? Why did cloning attract so many oddballs, and what is the status of reproductive cloning and therapeutic cloning? The Why Files honors Dolly with a 10-year lookback.