Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Demos: Department of Physics and Astronomy: Purdue University

Purdue University physics building (PHYS) seen from Northwestern Avenue, housing the Department of Physics and Astronomy Stock Photo - Alamy

Demos: Department of Physics and Astronomy: Purdue University