Collaborate Disseminate
Engineers at Cornell University have developed a new wearable device that can monitor a person’s facial expressions through sonar and recreate them on a digital avatar. Removing cameras from the equation could alleviate privacy concerns.Continue Readin… Continue reading Wearable sonar tracks facial expressions using sound instead of cameras
To say that the ocean is a dynamic environment would be a gross understatement, especially when coastlines are involved. Waves crash, tides go in and out, and countless variables make …read more Continue reading Surf Sensor Adds Depth To Finding The Ultimate Wave
For those who like to muck around in boats, there’s enough to worry about without wondering if you’re going to run aground. And there’s really no way to know that …read more Continue reading Homebrew Sounder Maps the Depths in Depth
When [Ezra Thomas] needed inspiration for his senior design project, he only needed to look as far as his own robot. Built during his high school years from the classic …read more Continue reading Robot Pet is A Chip Off The Old Logic Block
We all know that bats locate prey in the dark using echolocation, but … is that really all there is to it? Scientists decided to get more details on the animals’ hunting process, by equipping them with tiny wearable computers.Continue ReadingCategory: … Continue reading Bat “backpacks” provide new insights into hunting strategies
It’s very important for fish farmers to keep track of the number of fish in their pens, but doing so typically involves going in and actually netting out some of the fish. According to new research, echo-sounding tech could soon serve as an easier and … Continue reading Echo-sounding used to count farmed fish – without all the hassle
Radar and LiDAR have been incredibly quick and effective tools for mapping and surveying the Earth’s surface from aircraft and satellites, but while they can deliver accurate readings through cloud and even forest canopy cover, they can’t tell you what… Continue reading Stanford engineers invent a sonar device that works outside the water
Sperm whales use echolocation to search for prey such as squid in the deep, dark ocean – so it makes sense that competing sounds down there could screw that process up. A recent study now indicates that even a new-and-improved type of manmade sonar doe… Continue reading Even new-fangled sonar may keep sperm whales from finding food
All through the cold war, there was a high-stakes game of cat and mouse in play. Nuclear powers like the United States and the Soviet Union would hide submarines armed with nuclear missiles underwater. The other side would try to know where they were so they could be targeted in …read more
Continue reading Hide Silent, Hide Deep: Submarine Tracking Technologies of the Cold War
How does a submarine talk to an airplane? It sounds like a bad joke but it’s actually a difficult engineering challenge.
Traditionally the submarine must surface or get shallow enough to deploy a communication buoy. That communication buoy uses the same type of radio technology as planes. But submarines often rely on acoustic transmissions via hydrophones which is fancy-talk for putting speakers and microphones in the water as transmitters and receivers. This is because water is no friend to radio signals, especially high frequencies. MIT is developing a system which bridges this watery gap and it relies on acoustic transmissions …read more
Continue reading Submarine to Plane: Can You Hear Me Now? The Hydrophone Radar Connection