ERIC Number: EJ1049036
Record Type: Journal
Publication Date: 2015-Jan
Abstractor: As Provided
Laser Soap Fountain
Foley, Tyler; Pegram, Matthew; Jenkins, Zachary; Hester, Brooke C.; Burris, Jennifer L.
Physics Teacher, v53 n1 p10-12 Jan 2015
We have developed an eye-catching demonstration that showcases a variety of physics topics from total internal reflection to electrostatics to non-Newtonian fluid dynamics, including the Kaye effect. The essential components of the demonstration include a vertical stream of liquid soap in which a laser pointer is internally reflected, and which subsequently hits an inclined plane. As the liquid soap, a non-Newtonian fluid, begins to accumulate into a pile, its shear properties change and the incoming fluid rebounds from the pile, forming striking parabolic arcs. We present here a readily reproducible and inexpensive version of a laser soap fountain.
Descriptors: Science Instruction, Demonstrations (Educational), Physics, Scientific Concepts, Outreach Programs, Laboratory Equipment, Elementary School Science, Secondary School Science, College Science
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: firstname.lastname@example.org; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Elementary Education; Secondary Education; Higher Education; Postsecondary Education
Authoring Institution: N/A
Grant or Contract Numbers: N/A