electromagnetic

Visualizing How Current and Voltage Behave in a Mag Loop Antenna

Visualizing How Current and Voltage Behave in a Mag Loop Antenna

By Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.

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Ace electrical engineer, Jeri Ellsworth, is back to deep-nerding science and technology on YouTube.

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A Micro Relay at Work

A Micro Relay at Work

By Nick Normal

Nick Normal

I'm an artist & maker. A lifelong biblioholic, and advocate for all-things geekathon. Home is Long Island City, Queens, which I consider the greatest place on Earth. 5-year former Resident of Flux Factory, co-organizer for World Maker Faire (NYC), and blogger all over the net. Howdy!

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32

The fundamentals of switching in GIF format! See a 5V micro relay switch from normally-closed to normally-open and back to normally-closed.

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Super Fast Electromagnetic Flip Dot Display

Super Fast Electromagnetic Flip Dot Display

By Matt Richardson

Matt Richardson

Matt Richardson is a San Francisco-based creative technologist and Contributing Editor at MAKE. He’s the co-author of Getting Started with Raspberry Pi and the author of Getting Started with BeagleBone.

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6

As a promotion for TNT, BREAKFAST installed this incredibly large and fast flip dot display in Manhattan’s Herald Square. The 23 foot long display is 12 feet high and made up of 44,000 dots.

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