Arhive etichetă: eye

De ce vedem cateodata punctulete si liniute…TED-Ed update

View full lesson: http://ed.ted.com/lessons/what-are-th… Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing … Continuă lectura

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De ce lacrimam? TED-Ed Update

Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and … Continuă lectura

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