Latest in Science

Image credit:

Man illuminates electromagnetic waves using coffee cans and LEDs, Christmas-colored science ensues

80 Shares
Share
Tweet
Share
Save

Sponsored Links

Electromagnetic radiation is all around us, but we're largely unaware that our bodies are constantly bathed in waves of the stuff because our eyes aren't equipped to see most of it. Dr. Gregory Chavat decided to give us a glimpse of an EM waveform, however, by using a coffee can radar system, a couple of LEDs, and long-exposure photography. The setup consisted of a radar emitter made out of one coffee can and a second can with a couple of LEDs attached to serve as a tethered receiver antenna. Those LEDs were then set to that light up red or green to illuminate the EM wave peaks and valleys. By moving the receiver closer and further away from the emitter while taking a long exposure photo, the good doctor was able to capture the wavefront radiating on film, and let you see the unseen with a bit of Christmas-colored flair. Check the video below for a fuller explanation, and hit the more coverage link to learn how to build a coffee-can radar and perform some basement black magic yourself.



All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Share
80 Shares
Share
Tweet
Share
Save

Popular on Engadget

OnePlus will unveil the 7T on September 26th

OnePlus will unveil the 7T on September 26th

View
Vivo's NEX 3 is a bezel-less 5G phone with a 64-megapixel camera

Vivo's NEX 3 is a bezel-less 5G phone with a 64-megapixel camera

View
The Morning After: New York state moves to ban sale of flavored e-cigarettes

The Morning After: New York state moves to ban sale of flavored e-cigarettes

View
Photos of Huawei's Mate 30 range leak online

Photos of Huawei's Mate 30 range leak online

View
Motorola is making Android TVs too

Motorola is making Android TVs too

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr