Via Blue Tea comes this welcome news: "Josh Foer of the Athanasius Kircher Society and Dylan Thuras of Curious Expeditions have teamed up to launch the Atlas Obscura, an ambitious, user-driven catalog of curiosities, wonders, and oddities around the world."3. Firefly squid: This blue-glowing squid, Japan’s most famous bioluminescent creature, measures 5 to 7 centimeters long and is often found at depths greater than 200 meters. In spring, when firefly squid rise to the surface to spawn en masse, they become Toyama’s great tourist attraction and end up on dinner plates nationwide. One reason the firefly squid glows is to hide itself from predatory fish swimming below. When the squid lights up its bottom surface, fish looking up have a hard time seeing it because it blends with the sky above.
2. Bioluminescent plankton: Measuring 0.1 centimeter long and found in oceans around the world, this type of dinoflagellate glows blue when disturbed. Professor Omiya keeps a flask of the light-emitting plankton in his fridge, because just looking at the cool blue glow helps him relax when he’s feeling stressed. While bioluminescent creatures are generally believed to emit light in order to intimidate their enemies, attract mates or defend themselves from predators, it is not entirely clear why this plankton glows.
1. Bioluminescent comb jelly: This 10 to 15 centimeter long gelatinous deep-sea creature, found at dark ocean depths of more than 200 meters, glows seven different colors in an otherworldly display of light. Many questions remain unanswered about why this comb jelly glows, making it a fantastic rainbow-colored mystery.
Foxfire is the term for the bioluminescence created by a fungus that can grow on decaying wood in the right conditions. It is often attributed to members of the genus Armillaria, though others are reported, and as many as 40 individual species have been identified. On the suggestion of Benjamin Franklin it was used for light in the Turtle, an early submarine. In the novel The Adventures of Huckleberry Finn by Mark Twain, the characters of Huckleberry Finn and Tom Sawyer use foxfire as a source of light in order to dig a tunnel.[Wikipedia]
Foxfire is a natural phenomenon sometimes visible at night in forests. It's caused by bioluminescent fungi in special conditions—usually on rotting bark. Foxfire is caused by a range of different species of fungi, though Armillaria mellea appears to be the most common source. This particular species emits a bluish-green glow, like glow in the dark toys. ...
Recorded observations of fungal luminescence date back to Aristotle and Pliny the Elder. Pliny identified an "Agaricke" that "grows on the tops of trees and shines at night." Renaissance philosophers wrote of `"Fungus igneus, which shines like stars with a bluish light." In folklore, "Fairy sparks" in decaying wood indicated the place where fairies held their nightly revels.
People from many parts of the world have found uses for these natural lanterns. The Swedish historian Olaus Magnus wrote in 1652 that people in the far north of Scandinavia would place pieces of rotten oak bark at intervals when venturing into the forest. They could then find their way back by following the light.
In honour of Groundhog Day, I am posting a PF favorite, Swedish ceramic/multimedia artist Frida Fjellman and her magical, whimsical creations involving some other rodents. This might me my favorite lighting implement I have ever encountered. Behold the plasma lemming!
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| The image shows the Nasobema lyricum, aka "Snouter" the from the folklore section of the Haus der Natur (House of Nature), a natural history collection in Salzburg, Austria, uploaded by Curious Expeditions |
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| {plate from the book scanned and uploaded by stevelewalready} |
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| {The photo shows the Otopteryx volitans, the from the folklore section of the Haus der Natur (House of Nature), a natural history collection in Salzburg, Austria, uploaded by Curious Expeditions} |
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| {plate from the book scanned and uploaded by stevelewalready} |
