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 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 Paul Andersen explains how a magnetic force arises when magnets or moving electric charges interact with one another. A magnetic dipole will orient towards a magnetic field. When an electric charge is moving it will...

Hank builds a simple electric motor just powerful enough to make a small screw spin, but also strong enough to blow your mind.

Howcast - Learn how to know if flux core solder has enough flux for the job from expert Jeff Koskulics in this Howcast video.

It's a great little device that helps the miles fly by. And with a quick, easy adjustment, it can help them fly by even louder and clearer.

We demonstrate a displacement reaction using silver nitrate and copper. A tree-shaped piece of copper is submerged in silver nitrate solution. The silver ions displace the copper and the tree slowly becomes coated with silver metal. At...

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...

Explore the inner workings and history of light bulbs in this insightful video. From Thomas Edison's pioneering design to modern LED bulbs, uncover how these devices transform electricity into light. The video explains the role of...

Explore the essentials of electricity in this engaging video. Learn how it powers our daily devices and delve into the atomic world of neutrons, protons, and electrons. Discover the fascinating process of how electrical charges are...

Dr. Forrester defines electromagnetism and magnet by identifying the relationship between electricity and magnets and how they come from the same force.

Dr. Forrester defines the terms current, electricity, and static electricity by recognizing that electricity is a physical science that is important in daily life. She also compares and contrasts the properties of current electricity and...

How to use a multimeter. Find out in this tutorial for transistors, resistance, voltage, current, continuity, AC, DC, batteries, frequency, diodes, LED's, capacitors, temperature and much much more.

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...

Learn how RTD Resistance Temperature Detector sensors work in this video on RTD sensors basics.

The video is a lecture presentation on experiments to find the speed of a wave on a wire. The presenter first explains the theory behind the experiment, involving the formation of a stationary wave and the measurement of wavelength to...

A new type of sensor developed by researchers could lead to artificial skin that could help burn victims "feel" and help protect workers.

In this video, we will learn how to write half equations for simple redox reactions. A half-equation shows what happens at one of the electrodes during electrolysis, so we need to be able to complete and balance half-equations for these...

This video explains how to conduct an experiment to determine the speed of a wave on a string. It shows the steps involved, such as setting up the string or wire, creating a wave on it, and adjusting the distance between the two ends to...

Solenoid basics explained. In this video we take a look at the electromagnetic field of a solenoid coil. Learning how magnets work and how they can be used to control solenoids and solenoid valves. Working principles and working animations.

An induction cooker is a modern and energy-efficient cookware that uses magnetic induction instead of fire to cook food. It operates by creating a magnetic field that heats up the pot through currents, resulting in faster and more...

DC Motor explained - in this video we look at how does a dc motor work to understand the basic working principle of a DC motor. We consider conventional current, electron flow, the winding, armature, rotor, shaft, stator, brushes, brush...

This video describes the basic role that atoms play in creating electrical charges, as well as the nature and creation of static electricity. Various methods of charging are discussed, emphasizing the role that insulators and conductors...

In this video, students will learn about electricity, including its definition, how it is generated, and how it powers various devices. The video covers topics such as atoms and electrons, static electricity, electric generators, light...