Monthly Archives: February 2011

PC control of RC toy via Arduino

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China’s Drought and Spirulina

New York Times: U.N. Food Agency Issues Warning on China Drought The state-run news media in China warned Monday that the country‚Äôs major agricultural regions were facing their worst drought in 60 years. On Tuesday the state news agency Xinhua … Continue reading

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In Defense of Thomas Edison

Hey, it’s Edison’s birthday and Google’s doodle today is about Edison. And the Tesla Cult is angry about it. When I was growing up, Thomas Edison was regarded as a hero. His reputation has been tarnished in recent years by … Continue reading

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Reed Switch and Transistor

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Near Miss versus Near Collision

Just so everyone is clear, a near collision is a miss, and a near miss is a collision. But what are we to make of this Google count: Anyhow, if the Internets are going to be that inaccurate, then I … Continue reading

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Plane Near-Collision in Sketchup

In the news this morning was a story about a near collision of a 777 American Airlines jetliner with a pair of US Air Force C-17 cargo planes. Here’s what the graphic looked like on ABC News: Well, I realize … Continue reading

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Football on the Moon

My nephew was interested in the possibility of lunar basketball, but since this is the weekend of the Big Game (non-TM), I decided to go with lunar (American) football instead. The simple part, of course, is to put it under … Continue reading

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Amino acid progression

This is something that I’ve wanted to do for a while, and it will obviously take a lot more work. The idea is that amino acids show a progression in complexity, and I’d like to put together a slide show … Continue reading

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Engineer’s Dreams

Engineer’s Dreams: Great projects that could come true, by Willy Ley (1954). Here is a book that I found at Half Price Books that has been out of print for decades. Not only is it over fifty years old, it … Continue reading

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Tapping into an RC Circuit

The Neph came over and we probed the RC circuit with the analog multimeter that I purchased from Radio Shack. I was astonished to find that the voltage on the high side of the push button wasn’t even a single … Continue reading

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