Definition of Voltage and Current (ElectroBOOM101-002)

Hi, now that you know the most accurate theory of how electron came to life, let’s get into electronics, but not quite yet. I can’t just tell you what the voltage and current are – the video would be too short. You won’t quite grasp the meaning. So when scientists were discovering electricity, they already […]

How These Bacteria Become Electrical Cables That Could Power Our World

It turns out that bacteria may have figured out the whole electricity thing way before we did, you guys. In fact, there are bacteria deep in the ground and under the ocean right now that are acting as living electric cables, and scientists are coming up with all sorts of cool new ways to study […]

Electric Charge and Electric Fields

Professor Dave again, let’s discuss electric fields. We live in an age where we take electricity for granted. Just plug into the wall and you can power any device you want. But what’s in there? What is electricity made of? The discovery of a variety of phenomena over several centuries eventually led to our mastery […]

The Map of Physics

So physics is a huge subject that covers many different topics going from galaxies in the depths of space right down to subatomic particles. And if you don’t already know physics its difficult sometimes to see how all these different subjects are related to each other. So this is my attempt to show that in […]

The science of static electricity – Anuradha Bhagwat

It can strike without warning, at any moment. You may be walking across a soft carpet and reaching for the door knob when suddenly…zap! To understand static electricity, we first need to know a bit about the nature of matter. All matter is made up of atoms that consist of three types of smaller particles: […]

Top 5 strongest metals

5. Osmium. Osmium is a bluish white colour. Its melting point is 3030 degrees C. It was discovered in 1803. Osmium is producing very hard alloys that used in fountain pen tips, needles and electrical contacts. 10 % osmium and 90% platinum uses in surgical implants like pacemakers and replacement heart valves. You can also […]

Basic Electricity – Resistance and Ohm’s law

In this video I’m going to talk about electrical resistance, ohm’s law, and how to pick a resistor to limit current in an LED circuit. In previous videos I talked about how voltage can behave like a pushing force, pushing electric current around a circuit. But in one example I connected an LED straight to […]

Does the Bible refer to Electricity? Biblical Hebrew insight by Professor Lipnick

Hi! I’m Jonathan Lipnick, a professor at the Israel Institute of Biblical Studies. And today we are going to ask the question, “Does the Bible refer to Electricity?” Well, it’s a simple question with a rather convoluted answer. The word in Hebrew for Electricity is Hashmal and the only place that it is found in […]

Generating Electricity

We get electricity by changing other forms of energy. For example, we can burn coal or some other fuel which changes chemical energy into thermal, or heat, energy. The heat energy will cause water to heat and move in a tank. Energy of motion is kinetic energy. The kinetic energy in the water causes a […]