How Modern Light Bulbs Work

If you're not hearing impaired, you may wonder what it's like to wear a cochlear implant—what does it actually sound like? Unlike what you may think, cochlear implants don't generate sound like a hearing aid would. Instead, they actually...

How is it that you can be looking at a distinct object in front of you, yet picture something entirely different in your mind? The inner workings of what’s happening in our brains to allow this is a puzzle that scientists are now...

How is it that you can be looking at a distinct object in front of you, yet picture something entirely different in your mind? The inner workings of what’s happening in our brains to allow this is a puzzle that scientists are now...

Cochlear implants don't generate sound like a hearing aid would. Instead, they zap your cochlea.

How Modern Light Bulbs Work

Today, Carrie Anne is going to take a look at how those transistors we talked about last episode can be used to perform complex actions. With the just two states, on and off, the flow of electricity can be used to perform a number of...

Hank shows us another SciShow: Experiment! This time he's tackling what may be the most cliche, well-known and misunderstood experiment of all time: the lemon battery. The take home message in this one is: the electricity is NOT in the...

Howcast - Learn how to arc weld from sculptor DeWitt Godfrey in this Howcast video.

Howcast - Learn all about arc welding machines from sculptor DeWitt Godfrey in this Howcast video.

Discharge tube experiments are crucial in understanding atomic structure and the discovery of subatomic particles. These experiments involve the interaction of electricity with gases at low pressures, observing cathode rays and their...

An electrical conductor that connects to a non-metallic part of a circuit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

A cathode is the terminal from which electrons enter a system.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

We separate the ions in copper dichromate gel using electrolysis. We see the positive blue copper ions move to the negative electrode and the negative yellow chromate ions move to the positive electrode. Chemistry - Reactions - Learning...

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...

Explore the transformative impact of batteries and light bulbs on modern living, tracing their origins, development, and how they have revolutionized everyday convenience. Discover the scientific principles behind these inventions,...

This video covers:

- How to extract reactive metals from their oxides using electro
lysis
- Recap of extracting unreactive metals with 'reduction
by carbon'
- The specific example of extracting aluminium from...

Make a battery with pennies, nickels, salt, and vinegar in this fun science experiment! This type of battery is also called a voltaic pile. You can use a multimeter to measure the voltage and current produced by your battery, and even...

Learn how to make a working battery with salt water and how you can use it for a science experiment! A kit with the parts for this project is available