TIL: Sharks are attracted to the sound of death metal. Apparently, the "dense tones" of it mimics the "low frequencies of struggling fish." (Damn.)
In 2015, a Discovery Channel crew -- hoping to attract a large great white named "Joan of Shark" -- dropped a speaker underwater and played some.
Desperate to feature the 16-foot, 1.6 tonne shark in their documentary, they submerged a speaker to see if the shark would react. Unfortunately they didn't manage to attract Joan, but did catch the attention of two others, one of which was 12 feet long.
Sharks 'hear' by picking up vibrations from receptors on their bodies, meaning they can be attracted to the low-frequency vibrations of heavy music, which apparently sounds like struggling fish.
(Soap Plant Wacko)
I’ve had quite a few fun afternoons playing with dry ice from making spooky fog in the kitchen to exploding plastic bottles in the yard. But I’ve never had the opportunity to pour hot lava over dry ice. In this video, the lava is 1400 °C and the dry ice is -78C°. So cool! And […]
A Boston University team have developed an acoustic, 3D-printed metamaterial whose topology is such that it reflects 94% of human-audible sound; the researchers' demonstration involves inserting a ring of this stuff in a PVC pipe and blasting a speaker down one end: light and air emerges from the other end, but sound does not.
Scientists Lior Appelbaum and David Zada in Israel publish new proof that sleep serves to help our brains repair damage.
It’s spring clearance time for the Boing Boing Store, when some of the best deals from the holidays return even cheaper than before. From top-rated apps to educational software to the cutest record player of all time, they’re all back with a little extra incentive. Shop your heart out before tax season wraps up! Use […]
Big companies want automation on a big scale. Doing that means diving into the tricky world of machine learning and data science. And no matter what platform you’ll be implementing it on, you can learn how with the Machine Learning & Data Science Certification Training Bundle. In 48 hours and through eight courses, this bundle […]
Big systems need tight security – and the experts who can implement it. Cisco Networking Systems are the go-to providers for network infrastructure, but maintaining it takes a lot of up-to-date knowledge. If you want that knowledge right from the source, there’s an online course that can get you certified painlessly: The Foundational Cisco CCNA […]