circumhorizontal arcs photographed by david england, andy cripe, del zane, todd sackmann and brandon rios. this atmospheric phenomenon, otherwise known as a fire rainbow, is created when light from a sun that is at least 58 degrees above the horizon passes through the hexagonal ice crystals that form cirrus clouds which, because of quick cloud formation, have become horizontally aligned. (see also: previous cloud posts)
Necromancers experienced with gardening letting brightly coloured flowers blossom all over their skeletal horde.
combining necromancy and botany to send your lover a skeleton adorned with roses. how necRomantic
Sixth-Grader’s Science Fair Finding Shocks Ecologists
When 12-year-old Lauren Arrington heard about her sixth-grade science project, she knew she wanted to study lionfish. Growing up in Jupiter, Fla., she saw them in the ocean while snorkeling and fishing with her dad.
Her project showed that the lionfish can survive in nearly fresh water. The results blew away professional ecologists. The invasive species has no predators on the Florida coast, so if they were to migrate upstream in rivers, they could pose a threat to the ecosystem.
"Scientists were doing plenty of tests on them, but they just always assumed they were in the ocean," Lauren, now 13, tells NPR’s Kelly McEvers. "So I was like, ‘Well, hey guys, what about the river?’ "
In the beginning, she wanted to conduct her test by placing the lionfish in cages at different points in the river, but she had to simplify the project.
"It was just a small, sixth-grade project, and I really didn’t have all the tools necessary," she says. Her dad, who has a Ph.D. in fish ecology, suggested that she put the fish in tanks instead.
Lauren then put six different lionfish in six different tanks where she could watch her subjects closely. Lauren was given a strict set of rules by the science fair organizers. The most important one: Her fish could not die.
Lionfish had been found to live in water with salt levels of 20 parts per thousand. But no one knew that they could live in water salinity below that.
One of the six lionfish was her control fish, and the rest were the experimental fish. Every night for eight days, she would lower the salinity 5 parts per thousand in the experimental tanks. On the eighth day of her experiment, she found her experimental fish were living at 6 parts per thousand. She was amazed.
Her research did not stop there. Craig Layman, an ecology professor at North Carolina State University, confirmed Lauren’s results. “He credited a sixth-grader for coming up with his idea,” Lauren says ecstatically. Layman’s findings were published this year in the science journal Environmental Biology of Fishes. Lauren is mentioned in the acknowledgments.
Lauren’s father says he talks about science with her a lot. “We’re a science bunch of dorks in our family,” he tells McEvers.
Swords in Art - Joan of Arc
- Dated: 19th century
- Measurements: height: 36 cm (14 inches); width: 14 cm (5-1/2 inches); depth: 12 cm (4-3/4 inches)
Bisque porcelain (unglazed, white ceramic ware) statuette of Joan of Arc in armor atop square base and holding removable silver sword. There’s a swan hallmark on sword.
Source: Copyright © 2014 Expertissim
In July 2010, amid the gargantuan rebuilding effort at the site of the World Trade Center in Lower Manhattan, construction workers halted the backhoes when they uncovered something unexpected just south of where the Twin Towers once stood.
At 22 feet (6.7 meters) below today’s street level, in a pit that would become an underground security and parking complex, excavators found the mangled skeleton of a long-forgotten wooden ship.
Now, a new report finds that tree rings in those waterlogged ribs show the vessel was likely built in 1773, or soon after, in a small shipyard near Philadelphia. What’s more, the ship was perhaps made from the same kind of white oak trees used to build parts of Independence Hall, where the Declaration of Independence and U.S. Constitution were signed, according to the study published this month in the journal Tree-Ring Research. Read more.