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Water Invisibility Barrier Protects Against Tsunamis
Posted by Gizmodo US Edition at 1:35 PM on October 1, 2008
Research into invisibility cloaks, which work by bending light around 2D objects, could end up protecting offshore rigs and vulnerable coastlines from water. Scientists at the Fresnel Institute in Marseille, France said that established cloaking principles can be applied to ocean waves, and built a 10cm model to show how carefully placed concentric pillars make objects in the centre "invisible" to the sea.
STEREO, NASA's twin spacecraft mission getting a nice tan and taking tridimensional images of the Sun, has recorded a solar tsunami for the first time. The tsunami, a circular shockwave which traveled a million kilometers (621,371 miles) in just 30 minutes, is caused by a huge explosion on the star's surface. STEREO took the images thanks to its new cameras which, unlike the previous solar mission SOHO, are fast enough to capture the wave in detail, confirming the previously theoretical ultra-speedy nature of the titanic waves that travel through our home star from time to time. Wait— did I say Home Star?
