Forget gym gains—Chinese scientists just invented a backpack that basically gives its contents the silent treatment while you walk. This genius prototype uses springs, rods, and a tiny electromagnetic dampener (powered by basically nothing) to cancel out the annoying up-and-down jostling of your stuff, slashing the energy you burn carrying it by over 11%. No more feeling like you’re hauling a rebellious toddler on your back; the load stays eerily still, and your shoulders thank you. Hiking, commuting, or just adulting just got way lazier—er, more efficient.
This Backpack Lightens Its Own Load