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Wasps on the defensive
(8) | 20/09/2023 | Translate: Wasps go into defensive mode and prepare to respond to warning signals produced by sounds and vibrations. These signals do not only serve as warnings, but also as stimuli that can make them particularly aggressive.
The plant can not stand the shouts A man cries near the leaves of a mimosa (Mimosa pudica) and these close immediately and subside. The leaves of mimosa are not sensitive to sound, but fold if you accept several other stimuli, such as touch or vibrations.- The strange defense mechanism of a snake Automatic bleeding (also called reflex bleeding) a pygmy boa Bahamas (Tropidophis canus) when someone presses lightly on the head. Bleeding can act as a natural defense, as aimolympi is rich in toxic alkaloids, and volatile compounds which function as a specific warning signal.
- InSight records the sound of the wind on Mars An audio excerpt from the wind on Mars as it hits the NASA aircraft InSight. The seismometritis and aircraft pressure sensor registered vibrations from winds 16-24 km / hr, as they blew across the plain of Mars Elysium Planitia on December 1, 2018.
- An alligator in the sewer As Louis Camacho went to get the mail from his home in Florida, She felt a strong vibration beneath his feet. Initially, believed that an earthquake, but as it descended to street level, heard a loud sound coming from inside the sewer. But froze when he discovered a menacing alligator hiding in the sewers.
- Cutting bread with an ultrasonic knife Ultrasonic knife cutting much easier using vibrations produced by high frequency sounds.
- Yaybahar: An unlikely musical instrument The Yaybahar is an original, completely acoustic musical instrument designed by Gorkem Sen. The vibrations from the strings of springs transmitted on drums. These vibrations are converted into sound by the membranes that reverberate back and forth on springs, and this has resulted in a unique audio experience with a hypnotic sound surround. Here we hear the organ in real time, no additional effects or audio editing.
- The optical microphone Perhaps you should be more careful with your conversations in the future. If you are near a window in excellent sound insulation, someone might hear you. A team of researchers from Adobe, the Microsoft and MIT, they have developed an algorithm that can capture sound with a camera, simply detecting tiny vibration of an object in the video. The technique exploits the sequential shutter in modern digital cameras (where the sensor reads the Pixels per one line at a time) to detect the movements associated with the sound and is almost invisible to the naked eye. A camera frame rates high enough to record conversations from a bag of crisps, and music from the leaves of a plant.
- I'm: Noise cancellation device for your window The Sono sounds too good to be true in the realm of modern technology, and is not a product that you can buy right now. It is an idea created by the Austrian industrial designer Rudolf Stefanich and works by cancelling the vibrations caused by the external ambient noise, converting a window into noise-cancelling headphones. During testing of the prototype, the Sono successfully reduced noise by 12 decibels - a very good result for sounds in the 30-80 decibel range, but certainly not completely cancels the sound of traffic and loud noises.
- You can listen to radio using plants; An AM radio signal transmission antenna in Ukraine produces sound through plants. This is why the transmission is done through troughs of voltage of power supply evaporates moisture to plants proportionally, creating sound waves.
- Video and audio from one photo Microsoft just released VASA 1, an impressive new technology that can add video and audio to photos using artificial intelligence.
- Rescue rat A rat that has been trained to spot people in the rubble, after earthquakes. The rat has just spotted a human, activates a switch in his neck that alerts the trainer. Then the instructor plays a sound, for the rat to return and get its reward.
- Use of vibration to improve cement homogeneity
- Theft of a Rolls Royce worth £350.000, using a large antenna Thieves break into a Rolls Royce worth 350.000 pounds in 30 seconds, using a wire antenna and a transponder. This theft technique is based on relaying through a special device, the signal emitted by the key owner in the house. One of the thieves approached the front door with the device and large wire antenna to pick up the key's signal and transmit it to the car. The doors unlocked, and as seen in the video a second thief starts the car's engine.
- The real man-bat Blind Daniel Kish have convert sound into vision media, with the same method used and the bats
- Gloves that translate sign language into sound These gloves were developed by two 19-year-old students at the University of Washington, they translate sign language into sound.