Scientists develop magnetic ink that can self-heal gadgets when they break

From robot cookie makers to lightbulbs that double as phone chargers, Silicon Valley is great at selling us random gadgets we didn’t know we need. And while it’s cool if you’re into automated pita bread warmers of the future, it’s what happens after you put these devices through the test of time that these startups are less helpful with.
New research by the engineering lab team at the University of California, San Diego is hoping to fix that by creating magnetic ink parti