The Wall Street Journal Saturday ran a fabulous piece on the DC-3 airplane, an estimated 500 of which are still flying. Tens of thousands were made, 3,000 during the war effort in the Soviet Union. What struck my eye was the wing testing when the plane was designed. According to an interview in 1985 with chief designer Arthur Emmons Raymond to celebrate the plane’s 50th birthday, bulldozers were run over the wings to test their strength. When was the last time you heard about stress testing like that? A cursory check of the web revealed no DC-3 ever crashed from structural failure. I wonder if I should suggest bulldozers to the 787 stress test folks at Boeing. Famous for their relative size and strength, the DC-3 could glide back to earth even when it was under half power or without it entirely. Here’s one recent account of a crash after an engine failed. All walked away without serious injury.
The legendary Raymond died at 99 in 1999 and his obituary reads like a veritable (and brief) history of commercial aviation in its formative years. PBS aired an episode on the venerable plane in a series on commercial aviation called “Chasing the Sun” a few years ago. The DC-3 more than any other plane ushered in the era of commercial air travel.
If you see a hitchhiker along the road in Canada this summer, it may not be human. That’s because a robot is thumbing its way across our neighbor to the north as part of a collaborative research project by several Canadian universities.
Stanford University researchers have found a way to realize what’s been called the “Holy Grail” of battery-design research -- designing a pure lithium anode for lithium-based batteries. The design has great potential to provide unprecedented efficiency and performance in lithium-based batteries that could substantially drive down the cost of electric vehicles and solve the charging problems associated with smartphones.
Robots in films during the 2000s hit the big time; no longer are they the sidekicks of nerdy character actors. Robots we see on the big screen in recent years include Nicole Kidman, Arnold Schwarzenegger, and Eddie Murphy. Top star of the era, Will Smith, takes a spin as a robot investigator in I, Robot. Robots (or androids or cyborgs) are fully mainstream in the 2000s.
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