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A DIY E-bike Conversion on the Cheap

Cars That Think

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. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

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. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.

DIY 98
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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).

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Who Really Invented the Thumb Drive?

Cars That Think

The gadget, roughly the size of a pack of chewing gum, held 8 megabytes of data and required no external power source, drawing power directly from a computer when connected. Computer users badly needed a cheap, high-capacity, reliable, portable storage device. Flash memory became cheap and robust enough for consumer use by 1995.

Singapore 145
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Build a Passive Radar With Software-Defined Radio

Cars That Think

The biggest leap forward happened in 2012 when it was discovered that USB stick TV tuners using the RTL2832U demodulator chip could be tapped to make very cheap but effective SDR receivers. Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs.

Building 100
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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. To create MOS, they deposited aluminum wires connecting multiple transistors on the surface of a thumbnail-size piece of silicon. His projection came true over the decade that followed.

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Tech: The Whats and Hows of MAP Sensors

Clean Fleet Report

Tech: The Whats and Hows of MAP Sensors A Critical Component for Engine Efficiency This article may contain affiliate links. If this persists, you risk severe damage to the pistons, connecting rods and other engine internals. Replacements are easy and cheap to find, costing roughly the same or less than a related MAF sensor.

Fuel 81