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  • Publicado : 17 de marzo de 2011
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1. Hypnotism : A scientific approach. Hypnotism is the scientific and clinical use of hypnosis. Hypnosis, or a hypnotic state, is a temporary condition ofaltered attention in an individual. A hypnotist is a person who uses hypnotism. Scientific evidence suggests that hypnotism is useful when it is practised by qualified professionals. For example, someprofessionals use hypnotism to treat patients who have certain medical or psychological problems. 
2. DNA Blood Test Can Cut Invasive Testing for Down's Syndrome by 98 Percent, Study SuggestsScienceDaily (Jan. 11, 2011) — The blood test could mean that 98% of invasive procedures could be avoided, say the authors. The test uses the latest DNA technology to analyse genetic components in themother's blood that indicate whether the fetus has Down's.
3. NASA Tests New Propulsion System for Robotic Lander Prototype ScienceDaily (Jan. 12, 2011) — NASA's Robotic Lunar Lander DevelopmentProject at Marshall Space Flight Center in Huntsville, Ala., has completed a series of hot fire tests and taken delivery of a new propulsion system for integration into a more sophisticated free-flyingautonomous robotic lander prototype. The project is partnered with the Johns Hopkins University Applied Physics Laboratory in Laurel, Md., to develop a new generation of small, smart, versatile roboticlanders to achieve scientific and exploration goals on the surface of the moon and near-Earth asteroids.
1. Self-balancing scooters, like the Segway™are often thought to be technological miracles, but it is not actually very hard to build one. I built the one described here in about a week using off-the-shelf parts. I spent another week tweakingthe high-speed stability, improving the steering control, and writing about it.
2. Electronic Thermometers: It is now common to measure temperature with electronics. The most common sensor is a...