Lithium-air batteries are supposed to lead to lighter, longer-ranged electric cars thanks to their high power-to-weight output, but they have some showstopping flaws: they not only degrade rapidly, but waste a lot of energy input as heat. Neither is...
Lithium-oxygen battery promises lighter electric cars
Lithium-air batteries are supposed to lead to lighter, longer-ranged electric cars thanks to their high power-to-weight output, but they have some showstopping flaws: they not only degrade rapidly, but waste a lot of energy input as heat. Neither is...
For years, biologists have pondered how so many members of the animal kingdom -- from fruit flies and pigeons to sea turtles and wolves -- are able to navigate long distances apparently by sensing the Earth's magnetic field. Two theories have emerg...