TechnologyChinese nuclear reactor is completely meltdown-proof The first ever full-scale demonstration of a nuclear reactor designed to passively cool itself in an emergency was a success, showing that it should be possible to build nuclear plants without the risk of dangerous meltdown 51¶¯Âþ
TechnologyTiny brain sensor implanted without surgery dissolves after weeks In animal tests, a cube of hydrogel the length of a rice grain was implanted in the brain with a needle to monitor temperature or pressure, and then dissolved away after a few weeks 51¶¯Âþ