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Auroral Light Is Polarized After All - Physicsworld.Com


Science & Tech  (tags: light, polarised, atmosphere, Bob Duncan, Australia, Aurora Australia )

Jenny
- 653 days ago - physicsworld.com
Fifty years ago an Australian physicist Bob Duncan reported that light from the Aurora Australis (or Southern Lights) was polarized. Although his discovery could have provided a new way of studying the atmosphere of Earth, other scientists...



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Comments

Jenny Dooley (830)
Saturday October 6, 2012, 7:18 pm
Fifty years ago an Australian physicist called Bob Duncan reported that light from the Aurora Australis (or Southern Lights) was polarized. Although his discovery could have provided a new way of studying the atmosphere of Earth, other scientists at the time were unconvinced. Duncan's finding was quickly cast aside and the prevailing wisdom for the last half century has been that such light is not polarized. Now, however, an international team of physicists has made a similar measurement from the Arctic island of Svalbard, which suggests that Duncan was right all along.
 

Dianne Lynn Eakin (732)
Saturday October 6, 2012, 8:37 pm
noted--ty
 

Roger Garin-michaud (61)
Sunday October 7, 2012, 10:31 am
noted, thanks !
 

g d c. (0)
Sunday October 7, 2012, 10:44 am
ty
 

aj E. (163)
Sunday October 7, 2012, 11:51 am
thanks.
 

Evelyn W. (15)
Sunday October 7, 2012, 11:55 am
Sadly,most of this was beyond me.Will have to take the old college physics books out of moth balls to try to understand
 

Lois Jordan (55)
Sunday October 7, 2012, 5:48 pm
Noted & thanks, Thubten. Well, my understanding of this is even weaker than Evelyn's....but it is fascinating to me. Science is something that there just isn't enough of in public schools. If we don't teach it to the young, they will have such little understanding of it as they progress towards college. We need to have many more interested in studying these different fields, and more funding for research.
 

Tal H. (8)
Sunday October 7, 2012, 6:21 pm
Thanks for the share!
 

Edgar Zuim (48)
Sunday October 7, 2012, 9:14 pm
Thank you. Science is really fabulous, because in it we find the answers to many phenomena of nature.
 

Jenny Dooley (830)
Sunday October 7, 2012, 10:46 pm
Thanks for commenting!
 

Frans Badenhorst (546)
Monday October 8, 2012, 6:48 am
thanks, interesting article...I would so like to see the aurora Borealis or -Australis before I leave this planet...it must be one of nature's most spectacular shows...
 
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