Saturn’s orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new data from NASA’s Cassini spacecraft. The hydrocarbons rain from the sky, collecting in vast deposits that form lakes and dunes.
Duke University engineers have found that a three-dimensional sound cloak is possible. Such an acoustic veil would do for sound what the “invisibility cloak” does for microwaves. “We’ve devised a recipe for an acoustic material that would essentially open up a hole in space and make something inside that hole disappear from sound waves,”
Wikipedia, the free online encyclopaedia, is refusing to remove medieval artistic depictions of the Prophet Muhammad, despite being flooded with complaints from Muslims demanding the images be deleted.
