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Build a Better DIY Seismometer

Cars That Think

Data is stored on a logging board with a real-time clock [bottom]. second intervals and store the time-stamped data on a microSD card. earthquake struck just off the coast of Cuba. Establishing the response of the seismometer to vibrations is the role of the end weight [top left] and dampening magnets [top right].

DIY 138
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Ham Radio Jamming, Wireless Industry Battlegrounds, and IoT in Space

Cars That Think

Companies experimented with new kinds of satellite networks, new ways of building cell towers, and new ways of creating holograms. Here are the highlights of what went down in telecom this year: Cuba Jamming Ham Radio? His Q&A with IEEE Spectrum is chock-full of insights on what 6G might have in-store for us all.

Industry 141