When drug manufacturer Seattle Genetics needed an effective way to promote its cancer-fighting antibody-drug conjugate medicines at a trade show, it enlisted a company called Creative Machines to design and build this amazing ball contraption that actually illustrates how the drug enters a cell and attacks cancer inside a patient's body.

The machine, called the Adcetris, is hypnotizing to watch in action, and is just about one of the best ways to lure someone to a trade show booth that we've ever seen. It also raises one important question: why can't all sciences be taught this way? [Creative Machines via Notcot]