It’s a truly brilliant world… for hummingbirds! This is Sandra Tsing Loh with the Loh Down on Science. Pretty blues! Vibrant reds! We humans see colors because of special cells in our eyes called cones. Hummingbirds have an extra cone that detects UV light — light from the sun WE can’t see.
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Has print gotten twice as tiny? Or is my eyesight not what it used to be? This is Sandra Tsing Loh with The Loh Down on Science, saying… EYE am not the only one! Most people experience declining eyesight as they get older. They find it difficult to distinguish colors
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Is that sugar in your…. EYE!? This is Sandra Tsing Loh with the Loh Down on Science. More than thirty million people in the U-S have diabetes – which can lead to vision trouble, among other things. Keeping track of blood sugar levels means pricking your finger several times every
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Do animals REALLY see eye to eye? This is Sandra Tsing Loh with the Loh Down on Science. Most humans have the ability to detect color and perceive depth. But have you ever wondered how animals see the world? Eleanor Caves at Duke University studies how animals’ vision influences their
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Wearing one red sock and one blue sock today? That’s what you get for dressing in the dark! Sort of. This is Sandra Tsing Loh with The Loh Down on Science. Think of vision as a series of brain cells turning each other on. Not so much romantically, as literally.
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As “Game of Thrones” fans know — winter is coming! Let’s hope the white walkers don’t have night vision! This is Sandra Tsing Loh with the Loh Down on Science. We humans aren’t the best at night vision. We detect motion with direction-selective ganglion cells, or DSGCs. Some specifically detect
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Do animals REALLY see eye to eye? This is Sandra Tsing Loh with the Loh Down on Science. Most humans have the ability to detect color and perceive depth. But have you ever wondered how animals see the world? Eleanor Caves at Duke University studies how animals’ vision influences their
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So many kids today are nearsighted. Is the villain… Candy Crush? This is Sandra Tsing Loh with the Loh Down on Science. Facebook, Youtube, Fruit Ninja – everyone seems to be glued to their screens these days, especially the kids! Is all this screen time hurting children’s eyesight? Po-Wen Ku
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Is the way to better vision… a golden ticket? This is Sandra Tsing Loh with the Loh Down on Science, and some really sweet news! For years, carrots have been the go to food when it comes to improving vision. They’re rich in beta-carotene, which nourishes the eyes. But scientists
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Want better vision? How about. . . squishing your eyeballs? This is Sandra Tsing Loh with the Loh Down on Science. Eye shape is the key to perfect vision. But most of us have eyes as wonky as a Picasso portrait. Lasik eye surgery fixes vision by reshaping the eye’s
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