MR. G. W. WALKER tells me that he has sent to NATURE his interesting problem of the mutual attraction between two uniform concentric hemispherical shells, bounded by a common diametral plane. The ...

The Chinese puzzle ball is an ornate decorative artwork consisting of several concentric shells that move independently of each other. In the recent decade, Chinese scientists provided a universal ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue examines how atomic structure determines reactivity. Meet Theo Gray, chemist and author, who ...

Diamond may be just a phase carbon goes through when exposed to a flash of heat, but that makes it far easier to obtain. The Rice University lab of chemist James Tour is now able to "evolve" carbon ...

The research on multi-component nanoaggregates is very active and spans many different fields. High-entropy alloy nanocrystals, consisting of nanometre-sized solid solutions of five or more elements, ...