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Science360
Engineering the spark that starts wildfires
Hot metal fragments can be created from power lines, overheated brakes, railway tracks, or any other manner of metal-on-metal action in our industrialized society.
The particles can...
The particles can...
Crash Course
Optical Instruments: Crash Course Physics #41
How does a lens work? A thorough video lesson addresses this question by looking at the lenses of human eyes, telescopes, and microscopes. Light waves play an important role function of each of these objects. This is the 41st lesson in...