CHICAGO -- Measurement of metal ion levels in whole blood in patients with metal-on-metal (MoM) hip implants is useful -- but imperfect -- for identifying those whose new hips are functioning poorly ...

NASA's Project Prometheus recently reached an important milestone with the first successful test of an engine that could lead to revolutionary propulsion capabilities for space exploration ...

Britain's QinetiQ has started commercially operating its ion propulsion chamber, with the first customer, French engine manufacturer Snecma, using the facility to test Hall Effect Thrusters. The ...

Qinetiq is testing ion propulsion engines in close proximity as part of trials to develop a space propulsion system suitable for the European Space Agency's BepiColombo mission to Mercury (Flight ...

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Unlike the other tests described on this page, the test for carbonate ions works whatever acid is added. Explain why, in a test for sulfate ions, the sample is acidified with hydrochloric acid first.

The ion thrusters that will help get ESA's BepiColombo spacecraft to Mercury have been successfully put through their paces in space for the first time. Testing of the thrusters that make up the most ...