Jump to content
Sign in to follow this  

What Causes The Northern Lights? (Aurora Borealis)

By FizziksGuy, 08/23/2013
  • 1,531 views
  • 6 comments
The aurora borealis or northern lights is one of the most spectacular natural displays on the planet. Theories about its origins have been debated for centuries and common misconceptions persist that the aurora is the sun's rays scattered off ice crystals in the high atmosphere. In truth, the light is created more than 100km above Earth's surface as high speed electrons and protons ejected from the sun in a solar flare or coronal mass ejection collide with air molecules in the upper atmosphere. The charged particles from the sun excite air molecules which then de-excite by emitting light. The display is most common around the north and south poles because the Earth's magnetic field deflects the solar wind from the equator to the poles. Here the magnetic field dips towards the Earth's surface, channeling the charged particles into the atmosphere.

Music is by Kevin MacLeod [url="http://incompetech.com"]http://incompetech.com[/url], the song is called Mirage

Recommended Comments

Comments



Guest comprar cialis

Posted

http://comprarcialisgenericosinrecetaes.net/ cialis http://comprarcialis-generico.net/ comprar cialis http://achetercialisgeneriquesansordonnance.net/ cialis achat http://acquistare-cialis-generico.net/ acquistare cialis http://kaufencialisgenerikade.net/ cialis generika

Share this comment


Link to comment
Guest comprar cialis

Posted

http://comprarcialisgenericosinrecetaes.net/ cialis generico http://comprarcialis-generico.net/ cialis generico http://achetercialisgeneriquesansordonnance.net/ cialis achat http://acquistare-cialis-generico.net/ acquistare cialis http://kaufencialisgenerikade.net/ kaufen cialis

Share this comment


Link to comment
Guest comprar cialis

Posted

http://comprarcialisgenericosinrecetaes.net/ comprar cialis http://comprarcialis-generico.net/ venta cialis http://achetercialisgeneriquesansordonnance.net/ acheter cialis http://acquistare-cialis-generico.net/ acquistare cialis http://kaufencialisgenerikade.net/ cialis generika

Share this comment


Link to comment
Guest comprar cialis

Posted

http://comprarcialisgenericosinrecetaes.net/ cialis http://comprarcialis-generico.net/ comprar cialis http://achetercialisgeneriquesansordonnance.net/ acheter cialis http://acquistare-cialis-generico.net/ acquistare cialis http://kaufencialisgenerikade.net/ cialis

Share this comment


Link to comment
Guest comprar cialis

Posted

http://comprarcialisgenericosinrecetaes.net/ comprar cialis http://comprarcialis-generico.net/ precio cialis http://achetercialisgeneriquesansordonnance.net/ achat cialis http://acquistare-cialis-generico.net/ acquistare cialis http://kaufencialisgenerikade.net/ generika cialis

Share this comment


Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×
×
  • Create New...