Here's the interior of the 130-seat Craig lecture hall, which is used by several departments.  The lecturer's desk has the traditional setup for science demonstrations, including a sink and connections for water and air and natural gas.  The white object on the cart in the foreground is the modern equivalent of an overhead projector:  it's a TV camera that sends an image of whatever's on the table below it to the projection screens.  Other amenities include wireless data communications for the students' laptop computers.