SciShow
3 Great Discoveries of 2014
SciShow News explains the amazing discoveries behind this year’s Nobel Prizes, from the invention that made LED bulbs possible to discovering how our “inner GPS” works!
Science Buddies
LED Circuit Design: LEDs in Parallel
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Science Buddies
LED Circuit Design: Power and Efficiency
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Science Buddies
LED Circuit Design: LEDs in Series
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Science Buddies
LED Circuit Design: Solve for Current with Known Resistor
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Curated Video
Diodes and Transistors
How these simple semiconductor devices allow us to control the strength and flow of electrical current in a circuit, and are integral components in modern electrical equipment. Physics - Electricity And Circuits - Learning Points....
Curated Video
GCSE Physics - Components #19
This video covers: - The symbols of all the main components you need to know - What LEDs are - The graphs and uses of LDRs and thermistors General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers...
Curated Video
How to Use SMD LEDs in Your Electronics Projects
In this video, we're going to learn how to use SMD LEDs in our electronics projects. SMD LEDs are a type of LED that are smaller in size than normal LEDs, which makes them perfect for some special projects
Curated Video
LED Circuit Design - How to design LED circuits
LED Circuit Design - How to design LED circuits. How to calculate resistor size, how to protect LED, how long will a battery power a circuit, how to calculate resistor power rating, how to connect LED and much more.
Curated Video
How LEDs Work - Unravel the Mysteries of How LEDs Work!
How do LEDs work? In this video, we'll explain LED technology in an easy to understand way. We'll cover the different types of LED lights, the different colors that LEDs can emit, and the different applications for LED technology and how...
National Institute of Standards and Technology
NIST Vision Science Lab: Illuminating the Way to Better Lighting
In a unique laboratory at the National Institute of Standards and Technology (NIST), vision scientists can simulate lighting from virtually any source, including incandescents, fluorescents or LEDs. With this capability, they can test...
Curated Video
How Remote Controls Work
In this video, we learn how remote controls work by sending signals through electromagnetic signals. The remote control emits infrared radiation, which is received by a small infrared light detector on the device being operated. By...
Khan Academy
Khan Academy: Build the Transmitter
The electrical signal from a radio is converted to light with the help of a 9V battery in this video demonstration. [2:50]