Could an edible computer be in your future? Researchers are currently working on several of the components you find in them, from batteries to circuit boards to logic gates.

Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...

Clean, renewable energy is becoming more and more common in our everyday lives. But, as our cars and buildings become more green, tens of thousands of airplanes fly every day using petroleum-based fuel, and there's seemingly no end in...

tDCS devices claim to stimulate your brain and have psychological benefits, but do they really work?

Even though they power many of our modern conveniences, batteries have a long history. Hank explains how and why these marvels work and what they've been used for over the past 2,000 years!

Hank pays tribute to some of the great scientific minds we lost in 2012, and then apologizes for some mistakes made in recent SciShow episodes.

Why did some of Samsung's Galaxy Note7 phones explode? And what can Tardigrades teach us about protecting our DNA?

Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...

Modern computers are revolutionizing our lives, performing tasks unimaginable only decades ago. This was made possible by a long series of innovations, but there's one foundational invention that almost everything else relies upon: the...

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...

In this video, we explore how batteries work by converting chemical energy into electrical energy. The three main components of a battery, the anode, cathode, and electrolyte, play vital roles in this energy transformation. By...

The photoelectric effect is a phenomenon where electrons are emitted from a material, typically a metal, when exposed to light. This effect supports the quantum theory of light and demonstrates the particle-like properties of...

In 1897, J.J. Thomson conducted an experiment that led to the discovery of the electron and revolutionized atomic theory by demonstrating that atoms are composed of smaller subatomic particles. Before this, atoms were considered...

Cathode Rays: Key Properties

• Straight-Line Travel: Cathode rays travel in straight lines, casting sharp sha
dows.
• Negatively Charged: Composed of negatively charged particles, specifically electrons, deflected by...

It may seem counterintuitive, but draining the battery to 0 to 1% before recharging it again, is not a good practice. One simple hack to improve your battery life (for Li-ion batteries) is to use the 80:20 rule. Charge your battery to...

Coating an object with a metal using electrolysis.
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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 Glossary Films...

A cathode is the terminal from which electrons enter a system.
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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...

Electrolysis is fundamental to industrial processes. How was it discovered, how does it work and what are its uses? Chemistry - Reactions - Learning Points. The Chemist Humphry Davy developed the reaction we now call electrolysis....

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,...

In this video we cover:

- How the electrolysis of soluble compounds w
orks
- The rules to find out which ions are discharge at each
electrode
- Electrolysis of aqueous
copper sulfate
- Electrolysis of...

This video covers:<br/>
- What elec<br/>trolysis is
- The equipment of electrolysis and h<br/>ow it should be set up
- An example of electrolysis with a molten compound

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...

This video covers: - What fuel cells are - How they work - How to write half equations and full equations for fuel cells - The pro's and con's of hydrogen fuel cells Exam board specific info: AQA - Separate/triple science only IGCSE...

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...