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Bozeman Science
Stimulated Emission
In this video Paul Andersen explains how stimulated emission can be used to create coherent light. When an atom absorbs a photon it moves to a higher energy level through stimulated absorption. It may then release a photon and moves to...
Curated Video
Context Clues
Context Clues clarifies the meaning of words that are unknown or have multiple meaning using context clues.
Physics Girl
How 3D holograms work
Holograms are photographic recordings of 3D scenes. Unlike a camera, which captures one view through a small viewer focused by a lens, holograms capture an entire light field which allows them to recreate the 3D scene. Shimmery 2D...
Curated Video
IELTS Part 2: Sample Language You Would Like to Learn
Today you’ll get an IELTS Part 2 sample answer about learning a language.
Other
Teaching Without Frills: Informational Writing for Kids: Writing a Draft
Start organizing and writing facts for an informational piece. Use headings to organize all of the facts that go together, and draw and label pictures that go with each section. [2:20]