Even more unexpectedly, I have been able to make tennis-ball towers consisting of layers of four balls (4 n + 1) and five balls too (5 n + 1). Their equilibria are more delicate and, in the case of ...

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“At low temperatures, models of reactivity must include the effects of the permanent electric dipoles and quadrupole moments ...

A quarter of a century after he started writing his “Critical Point” column, Robert P Crease reveals his underlying message ...

Brain–computer interfaces (BCIs) enable the flow of information between the brain and an external device such as a computer, ...

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A proposed experiment that would involve trapping atoms on a two-layered laser grid could be used to study the mechanism ...

Physicists use the concept of quantum Fisher information to explain poor electrical conductivity in these unusual materials ...

Superfluidity is a quantum mechanical effect that occurs at temperatures near absolute zero. As the temperatures of certain ...

A team of researchers in Switzerland, Germany and the US has observed clear evidence of quantum mechanical interference ...

Clamp down: Columbia and other US universities have been hit by the US administration revoking the visas of foreign students, threatening to withdraw grants and demanding control over academic ...