Archive for January, 2007
Bacteria harnessed as micro propeller motors
One of the main challenges in developing microscale robots lies in miniaturising their power and propulsion. Now, researchers in the US may have found a solution to this problem, by exploiting the natural movement of bacteria to propel micro-objects through water.
http://www.newscientisttech.com/article/dn11037-bacteria-harnessed-as-micro-propeller-motors.html
Add comment January 26, 2007
Antisatellite shot across the bow again
U.S. suddenly has a new buddy in the rarefied air of antisatellite weapons. China is thinking strategic..while the U.S. gets, apparently, bogged down in the tactics of Afghan-to-Iraq vector. The Chinese took down an aging weather satellite with a missile. Lots of debris. David C. Wright, a senior scientist at the Union of Concerned Scientists, said he calculated that the Chinese satellite had shattered into 800 fragments four inches wide or larger, and millions of smaller pieces. Many suspect the U.S. has been conducting secret research on advanced antisatellite weapons using lasers.
Add comment January 21, 2007
Mirror neurons step forward
When subjects listened to the familiar music, say neurology department at Beth Israel Deaconess Medical Center and Harvard Medical School, their brains showed activity in a network of areas in the frontal and parietal lobes that are involved in the control of movements.
Add comment January 13, 2007
This is your brain on the future
In a Proceedings of the National Academy of Sciences study, researchers placed 21 volunteers into the MRI machine, then contrasted the scan results when they were asked to imagine vividly future events and recollect past memories. The resulting images showed clear differences between a birthday already experienced, and a birthday yet to come.
Add comment January 2, 2007
