Electronic music is older than you may think. Enter the theremin - a device that turns your body into part of a capacitor, and allows you to play music without even touching an instrument!

Having the ability to dim your lights seems like a pretty simple thing, but modern dimmer switches work in a surprisingly cool way!

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.

We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much...

Tesla imagined impossible technologies more than a hundred years ago. He and Thomas Edison have arguably had more of an impact on modern technology than any other scientists.



Tesla’s biggest...

The buzzing sound that power lines produce is caused by corona discharge. Corona discharge is an electrical discharge that occurs when a fluid (like air) surrounding an electrically-charged conductor becomes ionized. In simple terms, its...

An electronic component that allows current to flow in only one direction.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

An electric current in which the flow of electric charge is consistently in one direction.
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br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

An electric current in which the flow of electric charge periodically changes direction.
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br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A device used to change the voltage of an alternating current.
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br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

The generation of a voltage in a conductor when placed within a changing magnetic field.
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br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

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...

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...

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...

In this video we cover:

- How radio waves can be transmitted using oscilloscopes, transmitters, and rece
ivers
- How the transmission of radio waves can be used to transfer i
nformation
- The three different types of...

This video covers:

- The difference between alternating current and direct cu
rrent
- Voltage-t
ime graphs
-

Oscilloscope
s

General info:
- Suitable f
or all GCSE and IGCSE courses
- Suitab
le for...

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.

Dr. Forrester examines the discovery of electricity by creating a timeline. She also shares information about Thomas Edison and his invention of the light bulb.

How transformers work

How does a battery work, learn from the basics where we use and battery and how batteries work. With thanks to Squarespace for sponsoring this video.

How do main electrical panels work. Learn the main parts of electrical panel, load center, service panel in this video.

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...

Ground wire explained. What is the purpose of the ground wire, what does it connect to, when is it used, why is it used.

Ground neutral and hot wires explained. In this video we look at the difference and purpose of the ground wire, the hot wire and the neutral wire in a north american residential electrical system. We look at ground faults, GFCI,...