Trichoptera (caddis larva) building case (studio view), 1980-2000. Material: Gold, pearls, turquoise. Length: 2.5 cm. Photographer: Frédéric Delpech. Image courtesy of the artist and Art:Concept gallery, Paris and MONA Museum of Old and New Art.
In mid-June, NASA announced the award of two contracts with Deep Space Industries in conjunction with the agency’s plans to work with private industry in the exploration and harvesting of asteroids. One of these contracts caught my eye immediately. It […]
With a background in woodwork, ceramics, weaving, dressmaking, and even stained glass windows, artist Sophie Standing consolidates her breadth of talent in these explosively colorful textile collages of animals and insects. Standing was born in England but now lives and works in
Similar memories overlap physically in the brain and this produces less confusion if the brain area responsible is larger, according to new research.
Scientists scanned the brains of 15 people recalling four similar scenes, in a study published in PNAS.
They spotted overlapping memory traces in a specific corner of the hippocampus called "CA3", a known memory area.
If their CA3 was bigger, the subjects were less confused and there was less overlap in the traces.
Most of us store many similar memories, relating to the places we spend most time and the people we know best. Normally we can tell them apart, though some of us may be better at it than others.
The CA3 region was thought to process each memory using distinct sets of brain cells. These findings suggest, however, that when two episodes incorporate similar content, they may in fact be "remembered" by physically overlapping networks - and more space could be beneficial.
"Our results may help to explain why we sometimes find it difficult to differentiate between similar past memories, and why some people are better at doing this than others," said Prof Eleanor Maguire, the study's senior author, from the Wellcome Trust Centre for Neuroimaging at University College London (UCL).
The 15 subjects watched four short movies, showing two different actions happening in each of two different places. They were then prompted to remember each one, 20 times over, inside a brain scanner.
Scans revealed distinguishable memory activity in the CA3 region, but not three other compartments of the hippocampus. Importantly, the four different memory traces showed significant overlap.
Furthermore, that overlap was more apparent in people who said they were more confused by the similarities between the four memories.
Iowa artist Tamara Howell has undertaken a series of sculptures inspired by Norse myth, and among those pieces are five jaw-droppingly lovely skulls—two wolves, three goats—beautifully embellished with, as her web site simply states, “clay and mixed media.” I’d love to know more about her process, but, perhaps with an eye towards maintaining a mystique, Howell seems to demure on those details.
”Sköll Devours the Sun”
”Hati Catches the Moon”
In Norse myth, Sköll and Hati were wolves who pursued the sun and moon across the heavens.
The threat of Sköll and Hati’s size and hunger are emphasized, for their jaws gape open to swallow the heavens. Indeed, the “twilight of the gods”, Ragnarök, is explicitly linked to unrestrained destruction, the wolf’s hunger, namely that the ravening wolves will run free.
The god Thor has two splendid goats that drive his chariot at incredible speed, moving so fast that they shatter the mountains and set the earth on fire. These goats are called Tanngrisnir (“tooth bearer”) and Tanngnjóstr (“tooth grinder”). ...
Carbon fiber is one of the strongest and most resilient materials on the market, used in everything from car frames to body armor. It's also incredibly expensive to make. But one plant biologist says that in fifty years, we'll be growing it on trees.
Artificial selection, also known as selective breeding, is a nice way of saying that humans have guided the evolution of other animals until they become mutants. The stories of these six human-created mutants offer a fascinating perspective on how evolution works.
I would love to use this Jaguar augmented reality windscreen. It's like turning your entire driving experience into a video game (I don't know if that is a good idea or not but it sure looks like fun.)
When reviewing a building toy it's impossible not to make comparisons with Lego. Not only are its bricks able to build everything from dinosaurs to X-wings, Lego also offers robotics sets that have been used to make some truly impressive autonomous creations. And in that latter category, it finally has some competition.