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)
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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.
Are you super organized? You’re going to love the Genius Pack G4 and its seemingly limitless, well-placed compartments. Not that organized? You’re still going to love this piece of luggage because it’s so well thought out that it practically does the packing for you. We’ve all tried to stuff a piece of carry-on so full […]
Despite government legislation and improving caller ID technology, robocalls and scam artists are rampant on the phone lines – up to 35 billion a year in the US alone. They can be annoying at best and a financial threat at worst, but there’s a way to take security into your own hands. One good example […]
If you’re a Mac user, you thrive on simplicity. Everything in its place and a place for everything. Unsurprisingly, there’s a ton of great organizational apps out there for Mac, and now someone’s had the great idea to bundle them all together. Whether you’re running a demanding business or just getting through the day to […]