The electric vehicle grease industry finds its bearings

Electric vehicles don’t require gasoline, but they do require grease. Existing greases are OK for windshield wipers, door hinges, and window winder mechanisms, but the bearings and gears in the drive train are a different story. High operating temperatures and voltages are key concerns. As current densities increase, so does the risk of stray currents that can pit bearings. Typical electric motor speeds, currently around 15,000 rpm, are expected to exceed 20,000 rpm in the near future.

Touring a Green Building

This afternoon, I joined the Earth Ethics Committee of the Washington Ethical Society and friends for a tour of the Camille Kendall Academic Center of the Universities at Shady Grove (Rockville, MD). When this building received a LEED (Leadership in Energy and Environmental Design) Gold certification, it was the largest …

A World of Slow Drips

by Nancy McGuire, Wordchemist.com On January 24, a panel of seven journalists gathered at Washington, DC’s, Wilson Center to brief an overflow crowd of policy wonks, issue advocates, writers and reporters, and other interested citizens on the likely hot topics in environment and energy for 2014. The annual event, co-sponsored …

Keystone Capers and Ocean Issues

by Nancy McGuire, Wordchemist.com On January 24, a panel of seven journalists gathered at Washington, DC’s, Wilson Center to brief an overflow crowd of policy wonks, issue advocates, writers and reporters, and other interested citizens on the likely hot topics in environment and energy for 2014. The annual event, co-sponsored …

Coal: Politics and Power Supplies

by Nancy McGuire, Wordchemist.com On January 24, a panel of seven journalists gathered at Washington, DC’s, Wilson Center to brief an overflow crowd of policy wonks, issue advocates, writers and reporters, and other interested citizens on the likely hot topics in environment and energy for 2014. The annual event, co-sponsored …

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