259 views

2:32

Watch
- Search Videos
  
  Advanced search »
- Submit a New Video
Discuss
About
- Try clicking on the various channels to see videos posted to that channel - if you're into music you can click the Music channel to get more music sifts - go on and explore! Use the "hotness" when you have opened the channel link to get videos that have gotten a lot of votes, or use "newness" to have a look at the new sifts.
  When browsing sifts you like, have a look at the Related Posts list to see other related videos, click the tags under the video title to see more sifts tagged with the same tags or have a look at other sifts from the same user in the More Posts By list. If the sifted video is in a play list, have a look at the play list to see other interesting videos the Sift users have linked together.
  Enter the Sift Lounge to chat with online sifters about anything and everything, or read interesting posts in the Sift Talk forum.
  The Top New Videos list is always full of interesting, current videos. It is always recommended that you have a look through the Top New Videos, but also have a look at these:
  - Upcoming Unsifted Videos - active video submissions that neither are published to the front page nor archived to the submitter's personal queue
- Have you seen a really funny, surprising, scary, interesting, cute or in any other way extra good quality video?
  Post and share it here - VideoSift is the best video aggregator on the Web, where we share, discuss, promote, and interact with the best videos out there on the web. Post it here, and share it with the large community of video-interested users. And - you are guaranteed to find more very good videos here already!
  Mind you, we only share videos you discover that someone else has made; if you "self link," by posting a video you have made, have posted or have interests in, you risk the ban hammer - read the posting guidelines before posting. The sift is NOT for promoting your own videos - it is for sharing videos others have made.
  Submit a Video Now »
Login

Electricity... Slower Than a Turtle?!?

submitted by WKB

8 years 1 month 2 weeks ago

From YouTube: Published on Apr 10, 2016
→Subscribe for new videos every day! http://bit.ly/todayifoundoutsubscribe
→Why Do Superheroes Wear Their Underwear on the Outside?: http://bit.ly/1Ow7J0K

Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week!

In this video:

You may be surprised to learn that electrons flow through a typical copper wire much slower than a turtle walks. Each wire that conducts a flow of electrons, producing usable electric current, is composed of billions of atoms. To move along it, the electrons have to traverse these atoms, randomly zig-zagging their way as they do, resulting in the net flow rate, called “drift velocity,” in a given direction being quite slow. How slow exactly?...

Want the text version?: http://www.todayifoundout.com/index.p...

Sources:

http://www.express.co.uk/news/weird/4...

http://resources.schoolscience.co.uk/...

http://www.domino-tim.de/index.php/en...

http://en.wikipedia.org/wiki/Drift_ve...

http://www.physlink.com/Education/Ask...

http://seaperch.mit.edu/science_elect...

http://web2.0calc.com

https://www.uu.edu/dept/physics/scien...

http://en.wikipedia.org/wiki/Turtle_r...

Image Credit:

https://commons.wikimedia.org/wiki/Fi...
Category
Education
License
Standard YouTube License