SciShow
Solar Energy
Hank explains the power of solar energy and describes how it may fit into our diversified energy future.
Curated Video
How Optocouplers work - opto-isolator solid state relays phototransistor
Optocoupler. In this video we learn how optocouplers work and also look at some simple electron circuits you can make yourself to understand how an optocoupler, opto-isolator, phototransistor, photocoupler works. Photo transistor...
Curated Video
NPN & PNP Transistors explained - electronics engineering
NPN and PNP transistors explained. How does a transistor work. What is the difference between an NPN and a PNP transistor. We find out in this video.
Curated Video
Transistors Explained - How transistors work
Transistors how do transistors work. In this video we learn how transistors work, the different types of transistors, electronic circuit basics, how to build a transistor circuit, transistor amplifier, current gain beta, npn, pnp, heat...
Curated Video
How Transistors Work - A Quick and Basic Explanation
Do you know how transistors work? What is it about transistors that make them the building block of so many electronic items, like computer, laptops, smartphones and tablets these days? What is a transistor? The transistor is arguably...
Crash Course
Crash Course Chemistry #35: Silicon the Internet's Favorite Element
Learn about Silicon Valley's namesake and how network solids are at the heart of it all. Also find out about solid-state semiconductors, N-Type and P-Type semiconductors, diodes, transistors, computer chips, and binary code, all in the...