Tuesday, May 22, 2012

Photic Sneeze Reflex

Sometimes referred to using the backronym Autosomal Dominant Compelling Helio-Ophthalmic Outburst Syndrome (ACHOO Syndrome), and colloquially known as "sun sneezing". A condition of uncontrollable sneezing in response to numerous stimuli, such as looking at bright lights, affects 18–35% of the population. Its exact mechanism of action is not well understood.

Hinode Observes 2011 Annular Solar Eclipse

Hinode Observes 2011 Annular Solar Eclipse by NASA Goddard Photo and Video, on Flickr

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