HumansAncient society may have carved 'sun stones' to end volcanic winter Neolithic people buried hundreds of stones carved with images of the sun about 4900 years ago and they may have done it because a volcanic eruption covered the sky ¿ìè¶ÌÊÓÆµ
PhysicsAI could assemble a record-breaking quantum computer out of cold atoms A huge number of ultracold atoms have been corralled into a grid that could form the basis of the next largest quantum computer ¿ìè¶ÌÊÓÆµ