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POPSColors of the Night Sky The last photo is a panorama - scroll far over to the right to see the entire image (or clicking will take you to the original). The second to last photo is called Emerald Tornado. "The blood moon is also known as the “Hunter’s Moon” or “Sanguine Moon.” While folklore warns that a blood moon is a sign of bad times, the red star of night is anything but. The name “Hunter’s Moon” originates from the fact that this moon cast a brilliant light, allowing hunters to continue to seek prey even at nighttime" "No matter how much fact stands behind blood moons, some people still continue to think of them as harbingers of doom (but they are really quite the opposite!)"
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POPSLeonardo Da Vinci's 10 Best Ideas I had never heard of his scuba gear designs. From the source page: "Da Vinci's fascination with the sea spurred many designs for aquatic exploration. His diving suit was made of leather, connected to a snorkel made of cane and a bell that floated at the surface. Proving the artist was also practical, the suit included a pouch the diver could urinate in."
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POPSThe History of the Color Wheel As the disk spins, the colors blur together so rapidly that the human eye sees white. From there, the organization of color has taken many forms, from tables and charts, to triangles, and wheels the history. A nice explanation for each color organization system at the source: http://www.colourlovers.com/blog/2008/05/08/history-of-the-color-wheel/ sweetfood's related clip: Unusual Color Wheels Found in Life and Art - http://clipmarks.com/clipmark/6B376FCB-7F70-4E17-8147-84856276F53C/
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POPSWater, wind, and time This clip is sequential to Alanocu's one http://clipmarks.com/clipmark/C54E068A-A304-475D-9600-3200C5AE1506/