## Environmental Econ: Crash Course Economics #22

Adriene: Welcome to Crash Course Economics. I’m Adriene Hill Jacob: And I’m Jacob Clifford. Economics is about choices, and how we use our scarce resources. It’s not just about producing and consuming, it can also be about conserving. Adriene: Maybe counterintuitively, economics has a lot to add to discussions of how we can balance our […]

## Electric Current: Crash Course Physics #28

Imagine you’re floating down a river. Maybe the stream is calm and serene, flowing without obstruction. Or perhaps it’s a rushing river, churning and splashing over rocks! Well, the way water moves in a river is a lot like how electricity flows through a wire. But when we say that electricity is flowing, we’re really […]

## (2 of 2) Electricity and Magnetism – Review of All Topics – AP Physics C

Mr. P: Ammeters and voltmeters. An ammeter, you need to put in series, a voltmeter, you need to put in parallel. In order to measure the current, in order to put it in, you need to have it in series, right? In order to have little change to the circuit, you need to have as […]

## (1 of 2) Electricity and Magnetism – Review of All Topics – AP Physics C

Bo: Hey, guys! Billy: Hey, Bo! Bobby: Hi, Bo! ♫ (lyrics) Flipping Physics ♫ Mr. P: Ladies and gentlepeople, the bell has rung, therefore class has begun. Therefore, you should be seated in your seat, ready and excited to review everything we learned in electricity and magnetism in AP Physics C. Here we go, are […]

## AP Physics 1: Electricity Review

mr.p: Good morning. Today we’re going to review the electricity topics covered on the AP Physics 1 exam. Bo: Hey guys. Billy: Hey Bo. Bobby: Hi Bo. ♫ Flipping physics ♫ mr.p: Unlike electrostatics where charges were stationary, electricity deals with moving charges. The AP Physics 1 curriculum deals mostly with charges moving on a […]

## Electric Charge: Crash Course Physics #25

The shock you get from a doorknob. That trick you used to do with a balloon, to make your hair stick up. Or, of course, a lightning strike. They’re all governed by the same principle: static electricity. Static electricity occurs when an object obtains a net amount of positive or negative electric charge, creating an […]

## Electricity: Crash Course History of Science #27

Like thermodynamics, the history of electrical physics has its roots in pre-industrial questions that converged in the nineteenth century. These questions became a research paradigm, driven by a whole crew of researchers… And they led to a power system that reshaped the world. Time to get tingly! [Intro Music Plays] The study of electricity goes […]

## Four Spheres Part 2 (Hydro and Atmo): Crash Course Kids #6.2

Remember when we were putting together the puzzle that is our life that hates use i know mayir. Using the four spheres as giant pieces Well, we got pretty far last time, but we’re not done yet. Oh, no That’s because in addition to the geosphere and the biosphere which we talked about last [time] […]

## Transformers – How does electricity reach our home?

How does electricity reach our homes? It all starts from the power station, which gives a voltage of 20kV. But, to transmit this voltage over longer distances, it is stepped up (440kV) with the help of Step-up transformer. The transmission lines carry this voltage (440kV) to the substations or distribution stations, where the voltage gets […]

## The Industrial Revolution: Crash Course European History #24

Hi I’m John Green and this is Crash Course European History. So we’re going to turn our attention now to the Industrial Revolution, one of the most significant developments in human history. Like, imagine with me that it’s 1820. I got this idea from the economist Robert Gordon by the way. You live in, say, […]