When held stationary, this ball appears to glow with white light. When spun in a circle by the cord, one can see the white light separate into blinking red, blue, and green lights. Fascinating to watch in the dark. Great for reinforcing that white light can be produced by mixing three different colors of light. Advanced classes can relate it to the three different retinal color receptors in the back of the eye, and the persistence of vision. Poi spinners love to use these to practice. Beautiful when spun, and much safer than fire! (6.4 cm / 2.5" dia.) Uses 3 L1154 batteries, included.
Published by the American Association of Physics Teachers
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Mysterious glowing ball
May 13, 2017 | By Sian of Walnut Creek, CA United States
May 2, 2017 | By Kevin of Bartlett, IL United States
Owner Response:Thank you for your review, Kevin. I'm sorry you received a defective Glowing Ball. We will be sending a new one out to you immediately!
Feb 1, 2016 | By Mark Pelham of Danville, CA United States
Owner Response:Sorry about that, Mark. We'll send you out two new replacements!
Good Demo Item
Dec 10, 2015 | By Susan E. Buescher of Cincinnati, OH United States
Jun 15, 2014 | By Bob Shannon of MADISON, WI United States
Owner Response:Bob, I'm sorry your Glowing Ball did not work as expected. We will be happy to replace it immediately.
Mar 28, 2014 | By Mark Stein of South Burlington, VT United States
AP Physics teacher
Apr 3, 2013 | By Erich Landstrom of Loxahatchee, FL United States
Cheap & break easily
Mar 1, 2013 | By ATF of New York, NY United States
Owner Response:We're sorry you are not completely satisfied with your Mysterious Glowing Ball. We are more than happy to replace your broken product. Please contact customer service and provide us with your order number and address, and you will have a new one sent out right away.
Mysterious Glowing Ball
Jan 23, 2013 | By Christine of Stanwood, WA United States
Dec 8, 2012 | By Mir Oldham of Bowmanville, ON Canada
Aug 28, 2012 | By Allan of Las Vegas, NV United States
Aug 7, 2012 | By Gregory Vogt of Houston, TX United States
Curriculum Supevisor & Biology Teacher
May 31, 2012 | By Judy of Kokomo, IN United States
May 23, 2012 | By Tisha Weaver of Berea, KY United States
May 22, 2012 | By Jean of Snohomish, WA United States
Fascinating for students!
May 22, 2012 | By Jason H of Hudsonville, MI United States
May 22, 2012 | By Renee Teague of Cheney, KS United States
Amazing Color Display
May 16, 2012 | By Rachael Barrett-Gardner of Sioux City, IA United States
Great light demo
May 16, 2012 | By Ken B of Derry, NH United States
This product will support your students' understanding of the Next Generation Science Standards (NGSS)*, as shown in the table below.
Suggested Science Idea(s)
Students can use the Mysterious Glowing Ball to make observations to construct an evidence-based account that objects can be seen only when illuminated.
Students can use the Mysterious Glowing Ball in an investigation to develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.
Students can use the Mysterious Glowing Ball in an investigation to develop a model to describe that light reflecting from objects and entering the eye allows objects to be seen.
Students can use the Mysterious Glowing Ball to develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
Students can use the Mysterious Glowing Ball to conduct investigations and use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
Students can use the Mysterious Glowing Ball to conduct investigations about technological devices use the principles of wave behavior and wave interactions with matter to transmit.
When held stationary, the Mysterious Glowing Ball appears to glow with white light. When spun in a circle by the cord, one can see the white light separate into blinking red, blue and green lights.
* NGSS is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of, and do not endorse, this product.