Remember the deep-sea "bloop" noise that some people thought might be coming from a giant squid? Turns out it's an icequake. (Here's a WAV of it)
The broad spectrum sounds recorded in the summer of 1997 are consistent with icequakes generated by large icebergs as they crack and fracture. NOAA hydrophones deployed in the Scotia Sea detected numerous icequakes with spectrograms very similar to “Bloop”. The icequakes were used to acoustically track iceberg A53a as it disintegrated near South Georgia Island in early 2008. Icequakes are of sufficient amplitude to be detected on multiple sensors at a range of over 5000 km. Based on the arrival azimuth, the iceberg(s) generating “Bloop” most likely were between Bransfield Straits and the Ross Sea, or possibly at Cape Adare, a well know source of cryogenic signals.
Icequakes (Bloop) [NOAA]
(via Hacker News)
Michael Nielsen was a Fulbright Scholar who got his Ph.D. in Physics at 24. He was already tenured when he decided just three years later to shift his attention to helping democratize Science. He’s published three books, most recently Reinventing Discovery: The New Era of Networked Science. Currently, he’s a Research Fellow at YC Research […]
In the year 2,000, Susan Potter, then 72, donated her body to medicine. After Potter died, scientists froze her corpse, sliced it into 27,000 slivers thinner than a human hair, photographed each slice, and created “the world’s most advanced virtual cadaver using the highest-quality imagery of an entire human body in existence.” Not only is […]
Leon Hong writes, "I made this science-y animation for my wife Elaine Hsiao's research — with the hopes that people will learn something new about how all the microbes that live in and on us affect our brains and behavior."
For the true audio enthusiast, there’s a lot of difference between putting on some songs “for background music” and a true listening experience. For the latter, there’s nothing like a pair of sturdy headphones and the powerful speakers that come with them. And the wireless variety doesn’t get much more powerful than the TREBLAB Z2 […]
Digital or analog, there’s a path of least resistance for any project. Finding that path is what the Agile methodology is all about, which is why proficiency in it is a must for any project management position – and the paycheck that comes with it. And the quickest path to learning Agile? The Agile Project […]
Everybody’s flown a paper airplane. But what if you could fly on a paper airplane? Until we invent shrink-ray technology, the PowerUp X FPV Video Paper Airplane Kit will have to do – but it’s as fun as that sounds and more. The original version of this creative toy added drone tech to the old, […]