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In space, no one can hear you scream -- but you may hear a knock. When he was alone in a spacecraft in 2003, astronaut Yang Liwei reportedly heard a "knock" despite being alone. Liwei was the ...
Yang Liwei was born in Suizhong County, Huludao, Liaoning. [1] His mother was a teacher and his father was an accountant at a state agricultural firm. [2] Yang Liwei married Zhang Yumei with whom they had a son together. Zhang Yumei was a part of the People's Liberation Army and was a teacher in China's Space Program. [3] [4]
A LectroFan white noise machine A clock radio that includes a white noise machine. A white noise machine is a device that produces a noise that calms the listener [citation needed], which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual ...
For example, with a white noise audio signal, the range of frequencies between 40 Hz and 60 Hz contains the same amount of sound power as the range between 400 Hz and 420 Hz, since both intervals are 20 Hz wide. Note that spectra are often plotted with a logarithmic frequency axis rather than a linear one, in which case equal physical widths on ...
Foster said that because of human biophysics, the device "would kill you well before you were bothered by the noise". According to former professor at the University of Washington Bill Guy, "There's a misunderstanding by the public and even some scientists about this auditory effect," and "there couldn't possibly be a hazard from the sound ...
In signal processing theory, Gaussian noise, named after Carl Friedrich Gauss, is a kind of signal noise that has a probability density function (pdf) equal to that of the normal distribution (which is also known as the Gaussian distribution). [1] [2] In other words, the values that the noise can take are Gaussian-distributed.
A third album, the single track 'space fantasy' White Noise III - Re-Entry was released by Pulse Records in 1980. A further two albums were released, the atmospheric White Noise IV - Inferno (AMP Music) (1990) incorporated the use of samples, and White Noise V - Sound Mind (AMP Music; 2000), an experiment in what Vorhaus called "dark ambient".
Cosmic noise, also known as galactic radio noise, is a physical phenomenon derived from outside of the Earth's atmosphere. It is not actually sound, and it can be detected through a radio receiver , which is an electronic device that receives radio waves and converts the information given by them to an audible form.