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...rovers currently rolling across Mars may never have made it to the surface if someone who saw the plans had not begun fretting about the Martian winds the ships would encounter and argued for additional thrusters to counteract them. The thrusters were added, and the design change made all the difference. More recently, the lab was planning the less publicized Gravity Recovery and Climate Experiment (GRACE)--a twin-satellite pas de deux designed to measure Earth's gravitational field and its effect on ocean currents. A critical step was eliminating any wobble between the ships. J.P.L. staff members had been...
...planetary conga line that they would not form again for 176 years. This insight set the stage for the spectacular four-planet Voyager flights of the 1970s and '80s. Today the business of blue-skying ideas has become more institutionalized with a 20-person group called the Advanced Projects Design Team--or Team X--which meets three times a week...
J.P.L. is doing what it can to fix that problem, filling the mentoring hole by compiling painstaking lists of design principles--lessons learned when particular engineering techniques either did or didn't work. That system should serve in a pinch, but the lab is determined never to let the teaching system lapse again. "Mentoring is something we've been doing ad hoc for years," Manning says. "That's allowed us to collectively grow...
When Manning was helping design the two rovers now operating on Mars, he was faced with a problem of how to sever electrical cables so that the surface-bound vehicles could separate from their delivery craft. Rules require that power be shut down before the cables are cut in order to prevent a short, but there was insufficient space inside the ship for all the electrical relays to do that job. Manning's team designed a fix that he thought would sidestep the problem, but when he tried it out in tests, it failed--as the people who drafted...
Paul Kane, an Allied Security officer at the Harvard Design School, said the guards’ grievances center around not being fully paid for hours worked and not having a union or a collective voice in their terms of employment...