Technology advances: the energy density of lithium-ion batteries has increased from 80 Wh/kg to around 300 Wh/kg since the beginning of the 1990s. (Courtesy: B Wang) Researchers have succeeded in ...

So the extreme-density cells recently tested in Beijing ... This has now been smashed by a team from the Institute of Physics at the Chinese Academy of Sciences. A small team developed a ...

Astronomers have discovered a gas giant planet with the density of a marshmallow orbiting ... the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine ...