Megaripples are large ripple-like features that have wavelengths greater than one meter or a ripple height greater than ten centimeters. These geological sand waves are also called subaqueous dunes. The largest known megaripples were found hidden deep under Louisiana, and experts believe that they were formed after the asteroid crash that killed the non-avian dinosaurs, as Space details:
The 52-foot-tall (16 meters) megaripples are about 5,000 feet (1,500 m) under the Iatt Lake area, in north central Louisiana, and date to the end of theCretaceous period 66 million years ago, when that part of the state was underwater, the researchers said. The megaripples' size and orientation suggest that they formed after the giant space rock, known as the Chicxulub asteroid, slammed into the Yucatán Peninsula, leading to theChicxulub impact tsunami, whose waves then rushed into shallower waters and created the megaripple marks on the seafloor, the researchers said.
The occurrence of "ripples of that size means something very big had to disturb the water column," study lead researcher Gary Kinsland, a professor in the School of Geosciences at the University of Louisiana at Lafayette, told Live Science. "This is just further evidence that the Chicxulub impact ended the Cretaceous period."
Well, we can achieve professional-looking images without equipment or experience! Thanks to new features continuously added and upgraded to our handy smartphones and different applications that help us edit and enhance our photographs, we can make our photos magazine-worthy. Hell, we can now capture a decent image of different celestial bodies in our night sky, from the Milky Way to further galaxies and constellations without expensive equipment. PetaPixel lists the available applications and techniques to produce good images using our smartphones; check the full piece here!
Uh, surprise? Amateur astronomer Kai Ly discovered a new moon for the planet Jupiter. Ly managed to identify the new moon by scanning datasets from 2003. While new moons are being discovered periodically, the hobbyist also managed to identify and recover 5 lost Jovian moons:
Ly started examining images taken in February, 2003, in early June of this year. While they initially tracked 3 potential moons, there wasn't enough data to recover 2 of them. They were able to confirm that the third, designated EJc0061, was bound to Jupiter. In all 76 observations gathered from an observation period spanning 15.26 years was enough for Ly to conclude that the orbit of this new moon was secured for decades.
This new moon, discovered by Ly, may have company in the coming years. Last year, Edward Ashton, Matthew Beaudoin, and Brett J. Gladman spotted around 4 dozen objects, as small as 800 meters, in Jupiter's orbit. While they didn't prove these objects were Jovian moons, the group suggests that there is a possibility of up to 600 satellites. The development of more sophisticated telescopes in the coming years will help astronomers confirm these possibilities.
It’s very easy to lose track of the emails you receive every day. While there’s no harm in just letting unimportant emails stay in your inbox, hoarding a lot of them in the long run can cause problems when you’re using Gmail’s mobile application. When you have thousands of emails (or more), the app’s search function can lag or crash. So how do we avoid this issue? Well, mass deletion, right? The issue here is that the application doesn’t have an easy way to let its users mass delete their emails. TechRepublic shares a handy trick to solve the issue. Check it here!
Oh dear. Because of the losses suffered due to the pandemic, Mexico’s National Institute of Anthropology and History (INAH) decided that the archaeological project that involved exploring and studying a 2.5-mile-long, 400-year-old tunnel under Mexico City will be postponed. Therefore, archaeologists will need to cover up the dig due to the lack of funding to safeguard the site’s precious artifacts:
[...] The institute hopes that putting dirt back on top of the Indigenous artworks—which adorn a sluice gate from the early 1600s, part of early colonial Mexico City’s extensive flood control infrastructure—will be enough to keep it safe until someone has the means to properly build an on-site exhibit for the public.
The most remarkable artifacts found at the tunnel entrance were carved images of animals, gods, and other iconography, Mexico News Dailyreported at the time, though nails and some of the original wood of the gate were also uncovered. Depictions of a bird’s head, raindrops, a war shield, and a temple structure were among the excavated artworks.
The history of photography goes back almost 200 years now. The earliest photographic images look pretty primitive to us now, but they were surely miracles in their time. As technology advanced, what was considered a "good" picture had a lot to do with the equipment. Eventually, cameras became affordable enough for lots of people to own one. But to get a "good" picture, you needed to take lessons, or learn from your mistakes, which was expensive when film had to be purchased and then processed. Photography, and photo critique, is quite different now that almost everyone has a state-of-the-art digital camera in their pocket. Kim Beil, author of the book Good Pictures: A History of Popular Photography, explains how our view of "good" pictures has changed.
A second type of failure concerns effects that largely began as mistakes produced by legions of amateur photographers shooting pictures with their new, boxy, Kodak cameras, which made their debut in 1888. Foremost among these failures were motion blur and lens flare. Once upon a time, both were frowned upon by the authors of the “How to Make Good Pictures” books. Thus, a blurry background while trying to capture a moving object, or a blurry object moving across an in-focus background, were considered mistakes that a few simple techniques could help you correct.
Shooting into a light source and thus drenching precious photographic real estate in overexposed rays of light was also considered a no-no. But just as sports photographers would eventually have a ball with motion blur, fashion and advertising photographers would eventually go crazy for lens flare. Intention created context.
“Intention is central to the way I think about art, and maybe even how we define it,” Beil agrees. “Take lens flare: I think the power of lens flare comes from its initial unintentional use by people who were just taking casual pictures without any premeditation, without much intention.” In these sorts of photographs, Beil says, lens flare was an amateur mistake that conferred “a kind of authenticity to an image.” That’s why advertisers find lens flare so appealing. “Because we still associate it with authenticity,” Beil says, “it makes an advertising photo seem more real, maybe even spontaneous.”
Today, lens flare is so widely used, so intentional, that billions of smartphone cameras offer multiple variations of this former failing in the form of filters, which can be activated with a click or a swipe. “Everything can be achieved and there are no more accidents,” Beil says of photography in the 2020s, “so photographers look to things that happened before to reinsert some kind of authenticity into their pictures.” Thanks to technology, photographers can now pretend to take pictures as if they lacked the tools to make their pictures, well, good.
We've seen enough "you had one job" pictures too know what happens when workers start a project on both ends and try to meet in the middle. Honeybees do this all the time when they build hives, and manage to come together, knitting their little hexagon cells quite nicely, even with the difficulty of having to work around corners and curves.
This happens despite a number of major challenges. To begin with, multiple workers contribute to the constructions of each honeycomb, so the regularity can't just be explained by having a single worker engage in a series of instinctual movements. In addition, nests need two different-sized honeycombs, as they use distinct sizes for workers (most of the nest) and drones (males used for reproduction). Finally, honeycombs are often built as multiple units, starting from different areas of the hive and ultimately meeting in the middle somewhere.
To find out how all these issues are managed, an animal behavior specialist (Auburn's Michael Smith) got together with two computer scientists from Cornell: Nils Napp and Kirstin Petersen, who work on insect-like robots. Combined, they put together image-analysis software that could identify the boundaries of each cell, and they figured out the cells' basic statistics—number of sides, length of each side, etc. These could then be classified based on whether they were the right size for workers or drones or whether there was something unusual about the cell.
At the 2000 Olympics in Sydney, the women's all around gymnastics event began with a disaster. The world's greatest gymnasts were falling and crashing at the vault. It was the 19th competitor who insisted that the vault height be checked, and it was two inches (5cm) lower than regulation height! No one had adjusted it after the men's competition the night before. The upshot was that the athletes had the floor come at them much faster than in their years of training. When the error was discovered, competitors were offered a chance to re-do their vault, but it was too late for some. Several were injured, and many were so shaken that it affected their performances in other events. -via reddit
There are various rules and regulations for placing historical markers in places where historic things happened, but anyone can put up a commemorative plaque, as long as it's okay with the landowner. It doesn't even have to be a true story. That why you can see where the first cheeseburger was served, in Pasadena, California.
According to local legend, a teenage cook at Rite Spot by the apt name of Lionel Sternberger was the first person to put cheese on a burger. Some claim it wasn’t an invention so much as a cover-up, as Lionel had burned one side of the patty one fateful day in 1924. To hide his mistake, he slapped a new ingredient on top. Regardless of the circumstances, the cheeseburger was a hit. It later appeared on the menu as “The Aristocratic Burger: The Original Hamburger With Cheese.”
A list at Atlas Obscura shows you where you can see plaques for the the site of the first kiss between Barack and Michelle Obama, the 7-11 store where the Ouija board was named, and a fight between Jack Kerouac and William S. Burroughs over the Oxford comma, among others.
While enjoying the gorgeous photography of this clip from the BBC series Blue Planet, I kept thinking of the camera operator swimming through the jellies. The Portuguese man o' war is not technically a jellyfish, but it acts in much the same way -only scarier. -via Laughing Squid