Search Results
Showing results 1 to 2 of 2
Stroboscope
Source Institutions
In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
Periscope
Source Institutions
In this optics activity, learners build a spy tool to secretly view things over walls or around corners.