Khan Academy
What is Inside a Digital Camera? (1 of 2)
Explore the big picture of digital cameras. The first of two videos on digital cameras shows viewers the components inside a simple digital camera. It explains in detail how a digital camera works and how the components are made.
Be Smart
Rise of the Superbugs
The narrator of a short video shows learners the history of antibiotics with the use of penicillin. Viewers then see how bacteria are becoming resistant to antibiotics and what that means for our future health and for the development of...
Crash Course
The Cinematographer
Cranes, dollies, steadicams, and special lenses. Viewers focus on the world of the cinematographer with the eighth episode of a playlist on film production. The video details the various responsibilities of the Directory of Photography...
Khan Academy
What is Inside a DVD Player? (5 of 5)
You probably know that there is laser in a DVD player, but how exactly does it work? The last of five videos explains the laser setup in the DVD player and how it is able to transmit stored information. The video begins with a drawing...
Be Smart
What Color is the Universe?
What colors are the sun, our galaxy, and the universe? An engaging video provides an overview of each and why what we think we are seeing is often wrong. It provides explanations for how to understand colors that aren't in the visible...
Khan Academy
What is Inside a Universal Remote Control?
Viewers get to see inside a universal remote control with a code library with a short video that explains the components and how they work together to provide convenience.
Khan Academy
What is Inside a DVD Player? (2 of 5)
Powered up! In a continuation of the series on DVD players, the second video explores the switch mode power supply unit. It also looks at the difference between AC and DC.
Be Smart
Where Do Birds Go In Winter?
The poet Homer believed that birds went to battle tribes of goat-riding dwarfs during the winter. As the video explains, this myth and many others that seem crazy to us now, wasn't questioned for many years. The reality isn't quite as...