Vacuums are full of surprises! Did you know that they blow air out to suck things up? Or that old-fashioned vacuums were so huge, they had to be hauled from house to house by horses?! Join Molly and co-host Baker as they learn all about these awesome appliances. They’ll dig into vacuum history, shrink to the size of air molecules and explore the inside of this curious contraption, and even check out a vacuum museum in Missouri. All that, plus a tricky new mystery sound that will blow you away! Subscribe to Smarty Pass for ad-free feeds, bonus episodes, and ticket discounts! Today’s episode is sponsored by:- Poshpeanut.com/brainson - Receive 20% off your first order- Indeed.com/brainson - Receive a $75 sponsored job credit with code brainson - Inside Out 2 - Disney and Pixar's Inside Out 2 is coming to theaters, June 14th.