98ÌÃ Physics Open House Anna (left) and Elizabeth Ying are about to become a human battery. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House Seven-year-old Scarlett Clark is amazed by this Hoberman Sphere which proves how volume and density increase as it expands. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House Physics Lecturer Perry Nerem pours liquid nitrogen into a dewar as he prepares one of his demonstrations. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House When liquid nitrogen boils, it builds up pressure and forces the rubber stopper out of the bottle. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House You had to arrive early to get a seat for the physics demonstrations. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House With the help of a volunteer, Planetarium Director Justin Mason, demonstrates how a spinning wheel changes positions as it slows down. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House Lisa Okun, operations manager for the physics department, helps Carl Chalk find his way to the physics open house activities. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House The Omniglobe, which allows viewers to use a touchscreen to view maps and ocean currents, caught the eye of attendees. Photo David B Hollingsworth/98ÌÃ

98ÌÃ Physics Open House Sarah Morrow, a self-described physics nerd, gets a close look as an 98ÌÃ student makes liquid nitrogen ice cream. Photo David B. Hollingsworth/98ÌÃ

98ÌÃ Physics Open House During the Physics Open House, Isabel Clark learns how tornadoes form. Photo David B. Hollingsworth/98ÌÃ

Anna (left) and Elizabeth Ying are about to become a human b

Seven-year-old Scarlett Clark is amazed by this Hoberman Sph

Physics Lecturer Perry Nerem pours liquid nitrogen into a de

When liquid nitrogen boils, it builds up pressure and forces

You had to arrive early to get a seat for the physics demons

With the help of a volunteer, Planetarium Director Justin Ma

Lisa Okun, operations manager for the physics department, he

The Omniglobe, which allows viewers to use a touchscreen to

Sarah Morrow, a self-described physics nerd, gets a close lo

During the Physics Open House, Isabel Clark learns how torna

Nearly 500 people attended the 98ÌÃ physics department's 8th annual open house on March 17 in the Oceanography and Physical Sciences Building and Pretlow Planetarium. This is nearly a 50% increase over previous years' attendance. All were welcome to participate in activities that included full-dome planetarium shows, research laboratory tours and hands-on physics experiments as well as two live demo shows.

Photos by David B. Hollingsworth