Researchers at OIST built a graphite disk that levitates and spins for hours in a vacuum, showing how perfect magnetic symmetry can cancel energy loss.
Canberra needs a new season. At this time of year we have approximately four hours of spring per day, till the shadows lengthen and we reach for our coats and scarves again. The young fruit trees have ...
An illustration of a magnifying glass. An illustration of a magnifying glass.
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