Cool and useless. That's my definition of art. A midnight engineer and MIT professor creates totally useless machines. They are exquisitely beautiful. They do absolutely nothing. At best they whir and click and shake. A genuine artist, he also has filmed his machines obliquely, only partially seen, behind a veil of mystery. You want to know how they work, what they do, how come? No answers. Only peeks at cool and useless machines in marvelous varieties and cleverness, turning, turning, turning. Utterly riveting, supremely inspiring, and very geeky. Show this at a party, and everyone stops transfixed.