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A DIY E-bike Conversion on the Cheap

Cars That Think

Thanks to a few recent technical and commercial developments, I was able to come up with an e-bike conversion that cost me less than US $200 and yet functions impressively. This article appears in the September 2021 print issue as "An Instant E-bike.". Consider the two e-bikes described in. As I raced ahead, I chuckled to myself. "OK

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A DIY E-bike Conversion on the Cheap

Cars That Think

Thanks to a few recent technical and commercial developments, I was able to come up with an e-bike conversion that cost me less than US $200 and yet functions impressively. This article appears in the September 2021 print issue as "An Instant E-bike.". Consider the two e-bikes described in. As I raced ahead, I chuckled to myself. "OK

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The Transistor at 75

Cars That Think

In honor of this most important of technological achievements, this issue’s package of articles explores the transistor’s historical journey and potential future. The transistor would never have become so useful and so ubiquitous if the semiconductor industry had not succeeded in making it small and cheap.

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New nanolithia cathodes may address technical drawbacks of Li-air batteries; scalable, cheap and safer Li-air battery system

Green Car Congress

Overall, the new battery system is “ very scalable, cheap, and much safer ” than lithium-air batteries, Li says. In this system, commercial carbonate-based electrolyte works very well with solvated superoxide shuttles, which is quite impressive and may have to do with the lack of any gaseous O 2 in this sealed system. 2016.111.

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Exclusive: FAA Investigates If It's Safer to Leave Cellphones On

Cars That Think

The series of tests, which occurred this summer in the skies over Virginia, used commercial smartphones connecting to standard 4G and 5G wireless networks operated by AT&T, T-Mobile and Verizon, according to documents filed with the Federal Communications Commissions (FCC). You need to be warned if that GPS signal is leading you astray."

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Remembering the Legacy of Trailblazing Technologist Gordon Moore

Cars That Think

His original hypothesis, published in a 1965 Electronics magazine article , was that the number of transistors would double each year. The company created the first commercially available microprocessor, the 4004 , in 1971. Intel helped cement the region as a global center for technological innovation, the article says.

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The Coming Construction Boom

Cars That Think

Imagine using cheap wind- and solar-generated electricity to pull carbon out of the atmosphere and turn it into feedstock for large-scale 3D printing of building components. This article appears in the March 2022 print issue as “Building Boom.”. Combine all these factors and a dazzling possibility emerges.

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