Feel Good: Students Invent Leaf Blower Silencer

A group of engineering students at Johns Hopkins came up with a silencer for leaf blowers that makes them 37% less loud. They've already signed a deal with Stanley Black & Decker and expect them to be available to buy within two years.

STORY: https://www.wdjx.com/students-invent-leaf-blower-silencer-and-sign-a-deal-with-black-decker/