The next time you pour a drink of sparkling water, stop and look at the bubbles. Could our universe be like one of them, a single bubble among many other universes? That’s was one of the mind-blowing ...

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THE effect of Mr. Melde's pretty experiments with the vibrating stretched thread attached to one of the prongs of a tuning-fork is often spoiled to the spectators by the unfavourable plane of ...

In his classic book The Dragons of Eden, astronomer Carl Sagan tidily summarized the central challenge scientists face when they try to formulate grand new theories: “Remarkable claims require ...