ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Technology Videos 160 videos

History of Technology 1: Windmills
283 Views

What's the deal with wind? And why does it have to be so...windy?

History of Technology 2: Wheels
213 Views

How did people move stuff around before the wheel was invented? More importantly, why didn't they take a break for a few minutes from moving stuff...

See All

History of Technology 1: AC/DC 43 Views


Share It!


Description:

"Back in Black," "T.N.T.," "Thunderstruck"...who can forget the timeless AC/DC classics? Wait, this video isn't about the band AC/DC? It's about alternating current and direct current? Well, that's not as fun. 

Language:
English Language

Transcript

00:02

Faraday was experimenting with electricity generating dynamos in the [Michael Faraday being electrocuted]

00:07

1830s though it wouldn't be long before lightbulbs coffeepot and drones to crash

00:12

the day after Christmas came on scene right er not so much it actually took a [Christmas tree falls to the floor]

00:16

really really long time throughout the 19th century electric energy was still

00:21

something of a wacko dream wackier than that one were you won synchronized

00:26

swimming gold with Adele like super wacky.. So moving on from that stellar dream [Boy with Adele holding swimming gold medals]

00:32

let's start by taking a look at dynamic dynamos. Dynamos make electricity by

00:37

moving a magnet through a coil of wires at first they were powered by hand [Man powering a dynamo by hand]

00:42

cranks but then folks got smarter or maybe their arms just got tired

00:47

either way they started powering them with coal and steam over the next 50

00:51

years dynamos became more and more efficient and powerful they powered [Dynamo providing electricity for household appliances]

00:55

Telegraph systems factories and a handful of showy bling gadgets. By the

01:00

1880s Electric Power was ready for its close-up integral in his close-up U.S

01:06

inventor Thomas Edison Edison definitely did not invent electricity but he did [Edison opening the first public power station]

01:11

open the world's first public power station in 1882 it had one giant dynamo

01:17

in it and it powered a few wealthy people's homes in New York City here was [Wealthy New York citizens home lit up brightly]

01:21

the problem with Edison's Dynamo though like every other dynamo in the

01:24

world that produced direct current or DC power so what was wrong with that well [People wearing suits raise their arms]

01:30

DC electricity sends all the electrons down the line at a consistent pace and

01:34

in the same direction it's steady but it can't travel very far without losing [Power lines with electricity sparking]

01:38

power but by 1887 there was a new kind of electricity on the scene alternating

01:44

current or AC with AC power the electrons are constantly switching

01:49

direction rather than plotting along like we do after a big bowl of [Man eats at a table and crawls out of the room]

01:53

fettuccine alfredo most importantly AC power could be run through a transformer

01:57

giving it a major assist with the help of transformers and no not the alien [Transformer character stood beside a power line]

02:02

robots times AC power could be sent over long distances unlike DC power this

02:09

meant that instead of smaller dynamos on every city block there could just be one

02:13

huge AC generating plant that sent power all over the city and the bonus of [An AC generating plant giving electricity to different parts of the city]

02:19

knowing all these fun facts well you can impress your friends

02:21

the next AC/DC concert guy who came up with the AC power generator was Nikola

02:26

Tesla. Serbian science whiz and sorry to all Thomas Edison fanboys but he's kind [Edison pushing Tesla into a big puddle]

02:32

of famous for being a world-class jerk in the next part of the story because

02:36

surprisingly enough he did not love being out shined by some random Serb. Though

02:42

Edison launched a no-holds-barred campaign to fight AC power arguing that [Edison speaking declaring AC power is too dangerous]

02:47

it was more dangerous than his generators which was a big whopping fat

02:51

lie even hired a professor to give public speeches full of lies about how [Professor teaching a class of students]

02:55

awful AC power was well Edison also publicly electrocuted stray dogs with AC

03:01

power to prove how awful it was well in the process all Edison actually proved [Edison electrocuting stray dogs with AC power]

03:06

was how awful he was in the end Edison lost big time today all the

03:11

electricity in our homes comes from power plants generating AC power score one

03:16

for Tesla. By 1895 Nikola Tesla had built an enormous hydro electric plant at [Nikola Tesla stood by a hydro electric plant at the Niagra Falls]

03:22

Niagara Falls it produced AC power for Buffalo New York and marked the

03:28

beginning of a new age of public electricity but hey don't feel too bad

03:33

for Edison he has literally a thousand patents to tinker with and he died

03:38

a wealthy and world-famous man Tesla had died bankrupt and largely forgotten in a [Tesla on his death bed in a hotel room]

03:42

hotel room David Bowie did play him in a movie though you know you win

03:46

some lose some [David Bowie acting as Nikola Tesla as electricity rains down]

Related Videos

GED Social Studies 1.1 Civics and Government
39794 Views

GED Social Studies 1.1 Civics and Government

Fake News
11938 Views

How do you tell fake news from real news?

Jane Eyre Summary
123033 Views

When you're about to marry the love of your life, not many things could stop you. However, finding out that your future hubby is keeping his crazy...

What is Shmoop?
91405 Views

Here at Shmoop, we work for kids, not just the bottom line. Founded by David Siminoff and his wife Ellen Siminoff, Shmoop was originally conceived...

ACT Math 4.5 Elementary Algebra
492 Views

ACT Math: Elementary Algebra Drill 4, Problem 5. What is the solution to the problem shown?