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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 98
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Detect Quakes With “Raspberry Shakes”

Cars That Think

Searching the interwebs, I found no shortage of leads about how to build a DIY seismometer. The problem is that the DIY seismometer designs I was seeing were large and ungainly contraptions. Most geophones are designed for measuring frequencies above 10 Hz. I recently decided that I needed to give this a try.

Panama 107
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Tony Fadell: The Nest Thermostat Disrupted My Life

Cars That Think

If I could just connect the HVAC system to my iPhone, I could control it from anywhere. It was a dead, unloved market with less than $1 billion in total annual sales in the United States. It connected to your phone. This needed to be an easy DIY project, a quick upgrade. The big companies weren’t going to do it.

Tahoe 96
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A Smart Artificial Pancreas Could Conquer Diabetes

Cars That Think

Boris now conducts research on bioengineered substitutes for the pancreas; Anna is a writer and a designer. million in the United States alone—the pancreas produces either no insulin or too little, and the control process must be approximated by artificial means. He passed away from diabetes-related complications in 2002.

Personal 145