How likely are engineers to use an alternative to conventional hydraulic fluids? More than one-third of engineers surveyed in a recent Design News study say they are likely or very likely to use an alternative. Main reasons: environmental, industry acceptance, and cost.
NASA and Boeing developed a huge, carbon composite cryogenic fuel tank for deep space missions, and started testing it last month. The 18-ft cryotank will enable heavy-lift launch vehicles to send both humans and robots into deep space.
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