TOP 100 CAMPING SITES
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| Cash for clunkers: Get ready to trade in your old car The President and Congress may not be in agreement about how best to deal with climate change, but it appears that they do agree on at least one thing: they'd like to give you money to trade in your old (polluting) car. [More] rss.sciam.com |
Wolverine arrives in Colorado, first in 90 years A lone male wolverine arrived in northern Colorado earlier this month, making him the first confirmed wolverine in the state since 1919. [More] rss.sciam.com |
Los Angeles claims a victory in reducing water usage Stringent water restrictions in Los Angeles, recently enacted in the face of impending shortages, appear to be working. The city's utility reports that June demand dropped by 11 percent from last year's levels to a 32-year low for the month. [More] rss.sciam.com |
So the City Likes to Ban Things. How About These? Smoking is low on some parkgoers’ lists. But pigeons, drums, cellphones, foul language and other nuisances entered their minds. nytimes.com |
Wanted: Bright Ideas to Change the World One of 100 billion nerve cells in the human brain, the neuron waits, ready. Suddenly, a neigh­bor releases signaling molecules with an attention-getting message, like the irresistible chatter of a next-door gossip who has a hot tidbit. The receiving cell, excited, experiences fluctuations in ion concentration, creating a small electric current flow. Then it, too, releases communication signals down the line. The cascade continues until a large region of the brain is buzzing with heightened processing. Imaging scans would reveal the additional blood flow and electrical activity as thousands of neurons flare in response.A good idea can be like that--it stirs everything up--whether it is being shared throughout a network of cells in one person’s brain or in the world at large, through a community of people. Good ideas motivate us to action. They lead us to reflect on how to make things better. They spur us not to settle only for what is possible today. [More] rss.sciam.com |