Clock

The definition of a second, the most fundamental unit of time in our current measurement system, hasn't been updated in more than 70 years (give or take some billionths of a second).  But in the next decade or so, that could change: Ultraprecise atomic optical clocks that rely on visible light are on track to set the new definition of a second.These newer versions of the atomic clock are, in theory at least, much more precise than the gold-standard cesium clock, which measures a second based on the oscillation of cesium …

Scientists at Babraham Institute have developed a new technique for rejuvenating skin cells. This technique has allowed scientists to rewind the cellular biological clock by around 30 years according to molecular measures, significantly longer than previous reprogramming methods.The results of the research were published in the journal, 'eLife'.Scientists have been able to partly restore the function of older cells, as well as rejuvenate the molecular measures of biological age.As we age, our cells' ability to function…