iFlash One by danish interdisciplinary studio KiBiSi, is a bike light created for intuitive use and easy storage, uses magnets for easy fastening.
You’ve seen the pattern in science class when you laid bits of iron around a bar magnet. The invisible force field around the magnet becomes suddenly visible when the iron filings fall into line. The iron-cored Earth is also a great magnet, and scientists have spent a century exploring its shape and structure. Visualization built by Greg Shirah and Tom Bridgman, NASA/Goddard Space Flight Center Scientific Visualization Studio. Caption by Mike Carlowicz