Quirks & Quarks

Breathing spreads the flu, what happens if we stop geoengineering, your eyes are pointing your eardrums

Plus, flipping Earth's magnetic field, animal athletes and freezing duck feet.
A girl holds a mask to her face as she rides a bus in Lviv on October 30, 2009. Prime Minister Yulia Tymoshenko today ordered the closure of Ukraine's schools and banned gatherings including cinema shows for three weeks in response to a growing swine flu epidemic in the country. (Yuriy Dyachyshyn/AFP/Getty)