News tagged with density

"High-occupancy" vehicle (HOV) battery

In lithium-ion batteries, a singly charged lithium atom (or "ion") flows between two electrodes while one electron is contributed to the electrical current in the external circuit. If too many lithium ions are intercalated ...

dateAug 17, 2016 in Energy & Green Tech
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Where is Earth in the Milky Way?

For thousand of years, astronomers and astrologers believed that the Earth was at the center of our Universe. This perception was due in part to the fact that Earth-based observations were complicated by the fact that the ...

dateJul 14, 2016 in Space Exploration
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