Course Packs add 50 new cards from a specific discipline to the Mad Scientist University core game.From the publisher:PHYSICS: Your current assignment is to become incorporeal. The Physics department is doing experiments on how to walk through walls and survive impacts. With enough depleted uranium, you would have no problem making someone incorporeal, but you haven't quite figured out how to keep your test subjects alive...Expands: Mad Scientist University - BoardGameGeek