How do you size-up a CME?

How is the scale of coronal mass ejection (CME) measured? How does evolution work? What causes magnetic field flips? What are blood groups?
10 January 2014
Presented by Chris Smith

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 Taken by Hinode's Solar Optical Telescope on Jan. 12, 2007, this image of the sun reveals the filamentary nature of the plasma connecting regions of different magnetic polarity. Hinode captures these very dynamic pictures of the chromosphere. The...

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How is the scale of a coronal mass ejection (CME) measured? How does evolution work? Why is sole and palm skin a lighter colour? What causes magnetic field flips? What are blood groups and do animals have their own blood groups? Join Dr Chris for this week's crop of questions from Talk Radio 702, South Africa...

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