Animal world
Sound is not just about positioning
Probably not many people think what we will be if we become a bat. But for such people, it is the breakthrough enlightenment step to understand aspects of the human brai…
Sound
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Articles about Sound
658 published items.
Animal world
Concave ear frogs call their partners with ultrasound
Most female frogs do not call their partners, because they do not have vocal cords or their vocal cords. A female chooses a partner from a male choir and quietly gesture…
Animal world
How do animals identify sounds around?
According to scientists, people and other animals have the ability to identify sound sources relatively well. Since the early 1990s, many studies have explained the basi…
Animal world
More than 300 chickens died of heart attack because ... terrifying this language
Recently, in Guangxi, China had a rare story, a heart-attack chicken flock of 364 children died because of a fear of heart attack by a helicopter, died on the spot.
Scientific application
Vietnamese people make their own unmanned mini-ships to survey the sea
The ship can measure data in the water area from 1 to 1,000 meters and automatically send data to the radio signal.
Scientific application
Mysterious foam fire of veteran missiles
After 15 years of research, Mr. Pham Gia Tuan released a soundproof foam foam furnace.
Scientific application
Help blind people move with ... gloves
Instead of using a walking stick or specialized glasses, visually impaired people can walk easily with the aid of movement using sound waves.
Scientific application
Aviation reconnaissance before the radar was born
Before radar, how do people detect the appearance of aircraft in the sky, in addition to observing with the naked eye?
Environment
Underwater sound waves can help tsunami warnings earlier
When events that cause tsunamis such as underwater earthquakes occur, sound waves known as sound gravity waves (AGW) are sent through the water stream.
Environment
Nature dies slowly because of the noise of visitors
According to a recent study by US scientists, the noise pollution of visitors at some parks is destroying the natural environment, and threatening the environment.
Environment
It sounds crazy, but this hundred billion dollar project could save the Earth
A project that sounds impossible - this Arctic freeze will cost about $ 500 billion a year. Do you believe the project can become a reality?
Environment
Revealing information about the phenomenon of the
Unbelievably positive and negative effects from these strange and mysterious signs.
Environment
Noise - invisible assassin in the ocean
The seemingly harmless sound emitted from ships can indirectly cause whale and other marine animals deaths.
Environment
Mysterious 'sand hill to sing'
The phenomenon in some desert areas emits strange sounds like music tracks, sometimes like the sound of playing a bass song, sometimes a ringtone
Environment
5 natural foreboding before the disaster
In nature there are many signs for us to predict disaster - that is the abnormal transformation of the sky, the ground, the ocean or simply the abnormal expression of so…