A team of marine biologists from Norway, the U.S. and Denmark has conducted the first hearing test of a live baleen whale.
Researchers Record Weddell Seals Chirping and Chattering Like Robots Below Ice for the First Time, They Have No Idea Why ...
Research reveals that moths use ultrasonic sounds from drought-stressed plants to guide their egg-laying, favouring healthier ...
This study reveals that female moths utilize ultrasonic sounds emitted by dehydrated plants to inform their oviposition decisions, highlighting sound as a potential sensory cue for optimal host plant ...
They’re tuned to that specific sound, and they know the meaning, and they consider it.” In an earlier study, researchers showed that some plants emit ultrasonic clicks when under stress.
But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...
Lots of frogs around the world use a scream to scare off predators but scientists have found frogs in the Brazilian Atlantic Forest that can scream at an ultrasonic ... but no sound came out.
The idea is that sound causes bubbles of cavitation. This requires a focused ultrasonic beam which means you can actually print through items that are transparent to ultrasonic energy. Wherever ...
Ultrasonic sound is a vibration at a frequency above the range of human hearing, usually greater than 20 kHz. Unlike other types of position sensors, ultrasonic linear position sensors and switches ...
Ultrasonic transducers send and receive waves for many types of sensing. They convert energy into high frequency sound waves in the ultrasonic range. These sound waves are then focused on a target and ...