In mechanical engineering, scientists and developers are constantly looking for new ways to help machines bear their loads. Rolling bearings are one of the most popular and, due to an increase in unusual tech designs, some of the shapes engineers are creating are anything but ordinary. See how this one impossible shape is capable of rolling as smooth as a ball.
Stop robocalls for good with Kim’s new eBook
Robocalls interrupt us constantly and scam Americans out of millions of dollars every year. Learn Kim's best tricks for stopping annoying robocalls in this handy guide.