# learn

## 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 […]

## Why We Look down on Low Wage Earners

We not necessarily involved in this kind of judgement ourselves, but we recognize the phenomenon in our society well enough. The more someone earn, the more likely to be admired by strangers and perceived as interesting and exciting. Respect appears all too often to be […]

## Preparing for the AP* Physics 1 Exam | BUx on EdX | Course About Video

ANDREW DUFFY: Hello. My name is is Andrew Duffy, and I work here in the physics department at Boston University. I would like to introduce you to a course on edX that will help you prepare for the AP Physics I test or will just […]

## DIY Home Energy Monitor & CT sensors explained

Hi everyone! This is a bit of a special Simply Explained video with me talking about my DIY home energy monitor and how I built it. You see I was interested in measuring how much electricity our whole apartment was using and I wanted to […]

## This Superfluid Is Alive, And It Could Power Machines of the Future

Bacteria are everywhere, and they’re incredibly versatile. They can get us sick, they’re essential good guys in our digestive system…and they almost defy the laws of physics to create a fluid that basically could power a perpetual motion machine?? I didn’t see that coming. Ok, […]

## Why 3 Phase AC instead of Single Phase???

Hi. In my last video, I talked about how Tesla won the AC-DC battle against Edison. But then he shoved three-phase AC down our throats instead of single-phase AC. Edison: “Oh no, he didn’t. He always asked for too much” Ah, get lost Eddy! Obviously […]

## Why Use AC Instead of DC at Home??

Hi. Why do we ever use AC to power homes instead of DC? Haven’t I showed you that AC is typically more dangerous than DC? [Painful Gurgle] Can we run everything on DC? Yes! In fact pretty much every device at home has to rectify […]

## 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 […]

## Can You Use Electricity to Supercharge Your Brain? | tDCS

People around the world are strapping batteries to their heads to supercharge their brains. Seriously. This is a thing. It’s called transcranial direct-current stimulation, or tDCS, and it involves using electric currents to stimulate your brain. The companies that want to sell you tDCS devices […]

## How ESA’s Dark Energy Telescope Will Map the ‘Dark Universe’ | Countdown To Launch

The universe is filled with planets, asteroids, black holes, and galaxies—each with their own set of mysteries. But one of the best concealed aspects of deep space lies in what scientists describe as This is where dark energy and dark matter hide, interacting with the […]