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...energy, especially when dealing with complex circuit boards with a variety of components. Smelting circuit boards is more economical and feasible,” says R. Parthasarathi, managing director of E-Parisara, one of India’s leading e-waste recycling companies. According to the United Nations University, the world produced 42 million tonnes of e-waste in 2014, with Asia...

...energy from a continuously running electric motor and (b) kinetic energy stored in a rotating flywheel. Production rates depend on number of welds per cycle, weld area, material and method of loading and unloading; typical rate 1–4 welds min-1. In-cycle upset removal, by shearing or turning, increases weld cycle by 5–20%, but may reduce overall costs, since it is...

...solar system and then scattered inwards as the giant planets migrated outwards. Alternatively, Ceres could have formed more or less where it is, and incorporated nitrogen-containing organic molecules, which, like the water ice, were transported inwards from beyond Neptune. While this might not sound all that significant, it does have quite profound ramifications for our...