Photoreceptors are specialized cells in the eye that convert light energy into neural signals. Several diseases that cause irreversible vision loss, including age-related macular degeneration, retinitis pigmentosa and retinal detachment, are associated with dying photoreceptors. While there are many molecular pathways that result in cell death, there are also many that try to keep the…
Get the Popular Science daily newsletterđĄ Breakthroughs, discoveries, and DIY tips sent six days a week. Firefighters in South Korea will soon start deploying alongside a massive, six-wheeled, self-cooling autonomous robot that could help keep them safe. Hyundai recently revealed the new, driverless ground drone, built atop a chassis initially intended for military use and…
As an irrational number, pi has no end â but that has not stopped computer engineers from chasing its eternal string of decimal places deeper into the unknown. Recently, technology media company StorageReview achieved a staggering new record, calculating 314 trillion digits of pi on a single Dell PowerEdge R7725 server that ran constantly for…
The penguins crowded around a green wheelbarrow, eager to see what was making the clattering noise inside. Moments later, more than 1,000 colorful pebbles dropped onto their habitatâs pavement. Each pebble was hand-painted with a design, from flowers and rainbows to logos for Spider-Man and Scottish soccer teams. Source: Read Full Article
New peer-reviewed research shows fetuses likely have much higher levels of Pfas âforever chemicalsâ in their blood than previously thought. Testing of umbilical cord blood typically looks for a small number of common Pfas compounds, like Pfoa and Pfos. However, thousands of Pfas exist, and a new Mount Sinai study tested 120 umbilical blood cord…
Microbial bioelectronic sensors use living bacteria that can create an electrical signal in response to the presence of a target substance, or analyte. These types of sensors offer many advantages over other types of biosensors based on proteins and enzymes: The bacteria can perform multiple functions, survive in a variety of environments and even grow…
I canât seem to avoid 3D printed slop like articulated dragons and octopi with dangling legs. It wouldnât be so bad if these models didnât remind me of some of the worst aspects of 3D printing. I wonât judge you if you print a dragon or two in the privacy of your own home, but…
Even though most Americans say they don’t trust artificial intelligence (AI), researchers have found a startling new metric that seems to show the opposite: people are more likely to buy something after reading an AI summary of online reviews than one written by a human. Yet AI hallucinated 60% of the time when queried about…
Wherever there’s light and an object, there’s a shadow. By blocking sunlight, Earth casts a shadow, too. But can you see Earth’s shadow? Astronomers told Live Science that yes, you can see it cast on several objects. In fact, under the right conditions, you may even spot Earth’s shadow every day. Shadow on the moon…
“With the new releases in Cornwall and in west Somerset, we’re going to see exactly the same behaviour because beavers do such a good job of keeping the water in the headwaters, where the rains falls heavily, and slowing that flow down through the bottom of the catchments where people live,” he said. Source: Read…
