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Whipple shield used on NASA's Stardust probe. The Whipple shield or Whipple bumper, invented by Fred Whipple, [1] is a type of spaced armor shielding to protect crewed and uncrewed spacecraft from hypervelocity impact / collisions with micrometeoroids and orbital debris whose velocities generally range between 3 and 18 kilometres per second (1.9 and 11.2 mi/s).
The heater shield or heater-shaped shield is a form of European medieval shield, developing from the early medieval kite shield in the late 12th century in response to the declining importance of the shield in combat thanks to improvements in leg armour.
The shield rested on a man's shoulders, stretching down to the knees. It was theorized they were designed for a mass of hoplites to push forward into the opposing army, a move called othismos, and it was their most essential equipment, though this is now an outdated theory. [3] [4] The shield had a convex face, like that of a shallow bowl. [5]
Blue Shield of California is a mutual benefit corporation and health plan [6] [7] founded in 1939 by the California Medical Association. It is based in Oakland , California, and serves 4.5 million health plan members and more than 65,000 physicians across the state.
2. Hotspot Shield Free VPN. Hotspot Shield is one of the best free VPNs with unlimited data. It is also easy to use and allows for a Google Chrome extension. Additionally, Hotspot Shield Free VPN ...
The Dalkon Shield was a contraceptive intrauterine device (IUD) developed by the Dalkon Corporation and marketed by the A.H. Robins Company. The Dalkon Shield was found to cause severe injury to a disproportionately large percentage of women, which eventually led to numerous lawsuits, in which juries awarded millions of dollars in compensatory ...
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