Getty Images
Gloved hands pack sand onto a rounded surface before other hands scrape the surface smooth.
Gloved hands pack sand onto a rounded surface before other hands scrape the surface smooth.
Getty Images
Digital stunning animation of fluid changing colors.
Digital shape flowing in black background.
Getty Images
Graphic Element: Blurred space structure, fantasy
Multi color blurred structure looking like a view of space with a precision instrument. Dark blue background. Graphic element for media production
CK-12 Foundation
Interior Angles in Convex Polygons: Lesson
How are angles and sides related? Given several regular convex polygons, the video shows how to calculate the sum of their interior angles. The segment in a playlist on geometry shows how to find the measure of one angle if the polygon...
Physics Girl
Could You Replace Your Eye with a Camera?
Eyeballs or cameras—which have the best functions? The video presentations compare the important functions of the eyeball and the camera. As technology changes, cameras become more impressive, but the eyeball still out-functions the...
CK-12 Foundation
Exterior Angles in Convex Polygons: Lesson
Going around is the same no matter the number of sides. An installment in a geometry playlist explains exterior angles of a convex polygon. The video presents the formula to find the sum of the angles along with the formula for finding...
CK-12 Foundation
Classifying Polygons: Lesson
For your eyes only: classify the names of polygons. After providing the definition of a polygon, the video introduces the two major classifications of polygons, concave and convex. The segment of a larger playlist on geometry continues...
American Chemical Society
The Energy of Toys
Many children's toys demonstrate energy transfer without electricity. The video highlights the drinking bird, which bobs up and down thanks to a chemical reaction. It also demonstrates other classic toys that show energy transfer...
Khan Academy
Khan Academy: Thin Lens Equation and Problem Solving
This video offers examples of using the thin lens equation.[12:56]