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....

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....

We use electrolysis to break water molecules down into hydrogen and oxygen. This is done using the Hoffman apparatus. Water is added to the apparatus along with some dilute sulfuric acid. When a current is passed through the water,...

We extract copper metal from copper chloride solution using electrolysis. The electric current causes copper to form at one electrode and chlorine gas to form at the other. The presence of chlorine is tested using blue litmus paper....

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...

We use lemons and strips of zinc and copper to make a battery. First, strips of copper and zinc are added to one lemon and they are connected across a voltmeter. This is repeated, this time with more lemons and metal plates, until a...

We look at how an incandescent light bulb can be made. First we attach a tungsten wire to electrodes in a flask of air and pass a current through the wire. The wire glows briefly before burning and breaking. Next we fill the flask with...

2006, 25-year-old Jason DaSilva was on vacation at the beach with family when, suddenly, he fell down. He couldn’t get back up. His legs had stopped working; his disease could no longer be ignored. Just a few months earlier doctors...

Journey into the world of silence to understand our dependency on sound in daily life and the disorienting effects of true quiet. Explore the challenges faced by hearing-impaired individuals and witness the transformative power of...

The Cyber Hand project at the Sant Anna Valdera research Unit aims to revolutionize prosthetics by creating an artificial hand that mimics the nervous links between the brain and hand. Unlike traditional artificial limbs, Cyber Hand is...

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: - 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...

Duke University neuroscientist Jennifer Groh discusses the vital feature of “neuroplasticity” that accounts for how our brains are continually adapting to the world around us, highlighting how the hearing impaired develop the use of a...

Elon Musk, the world's richest man, is the co-founder of Neuralink, a company that plans to connect the human brain with computers. But in the six years since it was founded, has it lived up to the Musk hype? Well, it seems like it's...

Season 2, Tarantula part 4.

Discover the complicated process experts use to safely extract venom from tarantulas. This video emphasizes the danger and expertise required to handle such creatures and highlights the importance of...

At NSF-funded Engineering Research Centers across the United States, interdisciplinary university teams turn knowledge into new systems technologies. Working closely with industry and regional stakeholders, the centers ultimately aim...

The video explains the process of electrolysis of molten iron compounds. It discusses what electrolysis is and how it works, with a focus on the movement and reaction of ions at each electrode. The video also explains the concept of an...

This is a lecture presentation on the electrolysis of aqueous copper sulfate. The presenter goes through the theory of the electrolysis with metal electrodes and develops a hypothesis about what happens when copper sulfate solution is...

Polina Anikeeva hopes to one day be able to regenerate the spinal cord to restore movement for paralyzed people or possibly bypass the spinal cord altogether with a device that mimics its function.



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Dopamine is a special chemical, neurologically speaking. The neurotransmitter is crucial for decision-making, learning, movement and more. Scientists know that varying dopamine levels affect neurons, but don't yet have a method to...

K-12 teachers often say to students, ""Put your thinking caps on,"" and one day, students might just do that for real. Vanderbilt University psychologist Geoffrey Woodman says that's because scientists are being equipped with more and...

In this video, we explore the theory, use, and parameters with drug delivery via iontophoresis.

The video is a lecture presentation on the electrolysis of aqueous copper sulfates. The presenter discusses an experiment to test the hypothesis about the relationship between the current through the electrolyte and the mass of copper...