SciShow
Is the Power Grid Ready for Green Energy?
Despite the rise of renewable energy, the backbone of the power grid is fossil fuels. Adapting the grid to green energy sources is more complicated than flipping a switch.
Curated Video
Diode
An electronic component that allows current to flow in only one direction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Direct current (DC)
An electric current in which the flow of electric charge is consistently in one direction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Alternating current
An electric current in which the flow of electric charge periodically changes direction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
Curated Video
Electricity in Medicine
Discover how doctors use electricity in the human body to stimulate and suppress muscles - and save lives. Physics - Electricity And Circuits - Learning Points. Electricity is a useful tool in medicine and saves lives. An electric shock...
Curated Video
AC, DC and Transformers
Power loss affects electricity supply, especially to homes far from power stations. Why is power lost, and how is electricity effectively transported over long distances? Physics - Electricity And Circuits - Learning Points. Direct...
Curated Video
War of the Currents
The battle between famous 19th century inventors Edison and Tesla for a slice of America's electricity market, and the lengths they went to in order to secure it. Physics - Electricity And Circuits - Learning Points. Thomas Edison...
Curated Video
Making an Electromagnet
We create a simple electromagnet by coiling wire around a nail and passing current through it. The magnetic field around the electromagnet creates similar patterns in iron fillings to a permanent magnet. Physics - Electricity And...
Curated Video
Anode
An anode is the terminal from which electrons leave a system. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Flipping Physics
Back emf (electromotive force)
In this episode, we focus on the change in magnetic flux and the emergence of back electromotive force (emf). Follow along as we dissect the side view of a current-carrying wire loop rotating in a magnetic field. Unravel the concept of...
Curated Video
Nikola Tesla For Kids | Bedtime History
Learn about one of the geniuses of the electrical age, Nikola Tesla.
Curated Video
GCSE Physics - Alternating (AC) and Direct Current (DC) #21
This video covers: - The difference between alternating current and direct current - Voltage-time graphs - Oscilloscopes General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers - Suitable for...
Curated Video
Electricity: Can’t Live Without It
Dr. Forrester identifies the changes that have occurred over time with electricity by describing how electricity has changed the way we live. She explains how electricity has become safer by researching inventions over the centuries.
Curated Video
How does an Electric Motor work? (DC Motor)
In this video, we'll look at how an electric motor works- specifically, the DC motor. We'll discuss the different parts of the motor, and how they work together to create movement.
Curated Video
Three Phase Electricity Basics and Calculations electrical engineering
In this video we learn how three phase electricity works from the basics. We explain how three phase electricity is generated, how the voltages vary, how to calculate the voltages and vrms, what frequency, hertz and cycle mean and how we...
Curated Video
How Inverters Work - Working principle rectifier
How inverters work. In this video we take a look at how an inverter works to convert direct current (DC) into Alternating current (AC). Inverters are used increasingly throughout industry as well as building services HVAC systems to...
One Minute History
133 Tesla Edison and the Alternating Current - One Minute History
In 1884, engineer Nikola Tesla was hired by Thomas Edison’s Headquarters in New York City. Tesla idolized Edison, but the two had one fundamental disagreement; Edison favored DC, Direct Current, in which electricity flows in one...
Neuro Transmissions
I have insomnia. This neurotech says it can cure me.
Would you shock your brain to cure your insomnia? How about your depression or anxiety? What if you could do it in the comfort of your own home with a hand-held device? That’s what cranial electrotherapy stimulation, or CES, proposes to...
Flipping Physics
Introduction to Conventional Current and Direct Current with an Example Problem
An introduction to Conventional Current and Direct current. Includes conventional current direction and dimensions. We even talk about the Bohr model of the atom. And, of course, an example problem where we figure out current and the...
Visual Learning Systems
Understanding Electrical Current
This video explains the differences between alternating current and direct current, and how they flow in different directions. This video is part of the 11-part series, Electromagnetism.
One Minute History
The Rift Between Tesla and Edison - One Minute History_4K
In 1884, engineer Nikola Tesla was hired by Thomas Edison’s Headquarters in New York City. Tesla idolized Edison, but the two had one fundamental disagreement; Edison favored DC, Direct Current, in which electricity flows in one...
Visual Learning Systems
Understanding Current Direction
This video explains the two main ways electrons can flow through a wire: direct current (DC) and alternating current (AC). This video is part of the 14-part series, Current Electricity.
Curated Video
DC parallel circuits explained - The basics how parallel circuits work working principle
Parallel Circuits Explained. In this video we take a look at how DC parallel circuits work and consider voltage, current, resistance, power consumption as well as some worked examples and some test questions with solutions.