12-16-2024, 01:50 PM
Ndlj How Bell Lab s Radar Dismantled the Axis Powers
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If you ;re an aquatic mammal, how do you hunt in the darkest seas, where light can ;t penetrate Dolphins have it easy with their echolocation, but what about the other animals with much more limited senses They chase after critters that provide their own light. stanley cup In a paper published in the journal PLOS One, researchers describe how they tracked four female southern elephant seals Mirounga leonina as they hunted, recording the time, depth, and light levels. In cases where the light was recorded as brighter than ambient levels, the seals were near sources of bioluminescence 鈥?and wouldn ;t you kn stanley mugs ow it, that was when they foraged more. The seals have eyes uniquely tuned to detect light at 485 nm, the same wavelength as the bioluminescence of the lantern fish that make up much of their prey. While it may seem self-evident that a deep sea diving predator would go after prey that glows in the dark, this is some of the first hard evidence showing that this does happen. It also hints at a whole world of other possibilities 鈥?the sensors on the seals were only capable of registering light levels every two seconds, and could only detect the bright flashes that some animals create, rather than soft glows. There was also no way to directly tie the seals ; predation to specific prey species or the many others that can bioluminesce. The researchers also noted that some species of shrimp and squid will eject clouds of stanley canada bioluminescent materials to distract predators
Many wonderful things have come out of the US Military Defense Advanced Research Projects Agency鈥攐r DAR stanley cup PA鈥攊ncuding the internet. But none are as insanely awesome stanley cup as its new CAAT Captive Air Amphibious Transporter which stanley kubek is essentially a tank that floats on water thanks to its oversized inflatable treads. Created as part of DARPA Tactically Expandable Maritime Platform, the CAAT is designed to ferry supplies from offshore container ships to disaster areas on land. The version of the CAAT seen skimming across the water and swamps in this video is actually a 1/5-scale model built to demonstrate its capabilities. And even though a full-size version will weigh in at over 20 tons, there no risk of it sinking since the weight is evenly distributed across its over-sized pontoon treads. To really sell it, though, DARPA should ;ve strongly considered putting a 1/5-scale Cobra Commander at the wheel. [YouTube via Technabob] Darpamilitary Zwqq How Rumors Spread Online
If you ;re an aquatic mammal, how do you hunt in the darkest seas, where light can ;t penetrate Dolphins have it easy with their echolocation, but what about the other animals with much more limited senses They chase after critters that provide their own light. stanley cup In a paper published in the journal PLOS One, researchers describe how they tracked four female southern elephant seals Mirounga leonina as they hunted, recording the time, depth, and light levels. In cases where the light was recorded as brighter than ambient levels, the seals were near sources of bioluminescence 鈥?and wouldn ;t you kn stanley mugs ow it, that was when they foraged more. The seals have eyes uniquely tuned to detect light at 485 nm, the same wavelength as the bioluminescence of the lantern fish that make up much of their prey. While it may seem self-evident that a deep sea diving predator would go after prey that glows in the dark, this is some of the first hard evidence showing that this does happen. It also hints at a whole world of other possibilities 鈥?the sensors on the seals were only capable of registering light levels every two seconds, and could only detect the bright flashes that some animals create, rather than soft glows. There was also no way to directly tie the seals ; predation to specific prey species or the many others that can bioluminesce. The researchers also noted that some species of shrimp and squid will eject clouds of stanley canada bioluminescent materials to distract predators
