When you look up in the night sky and find your way to the North Star, you are looking at Polaris. Not only is it the brightest star in the Ursa Minor constellation (the Little Dipper), but its position relative to the north ...
Astronomy
Sep 11, 2023
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189
In the era of big data, global data volume is growing exponentially. The development of numerous technologies depends on massive data and also generates massive data. Data mining, storage, and protection are becoming increasingly ...
Optics & Photonics
Apr 5, 2023
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3
The research team led by Professor Sanghoon Lee from the Department of Robotics and Mechatronics Engineering at DGSIT (President Yang Kuk) successfully developed a rotation-based triboelectric neuro-stimulator (RoTENS) capable ...
Bio & Medicine
Nov 16, 2022
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103
Not everything needs to be seen to be believed; certain things are more readily heard, like a train approaching its station. In a recent paper, published in Physical Review Letters, researchers have put their ears to the ...
Condensed Matter
Sep 12, 2022
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217
An international team of researchers led by Professor Min Seok Jang of KAIST and Professor Victor W. Brar of the University of Wisconsin-Madison has demonstrated a widely applicable methodology enabling a full 360° active ...
Optics & Photonics
May 2, 2022
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111
Internal waves are widely distributed in the ocean, and their amplitude can reach hundreds of meters, affecting the ocean environment.
Earth Sciences
Feb 17, 2022
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10
Scientists at the National Institute of Standards and Technology (NIST) have invented and demonstrated a novel scheme for substantially improving the detection accuracy of information transmitted in pulses of light through ...
Optics & Photonics
Jan 31, 2022
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374
The thought of bacteria joining together to form a socially organized community capable of cooperation, competition and sophisticated communication might at first seem like the stuff of science fiction—or just plain gross.
Molecular & Computational biology
Jan 27, 2022
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555
Numbers like π, e and φ often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a ...
General Physics
Jan 19, 2022
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3406
To improve our understanding of biomolecular processes happening within cells, techniques for visualizing and recording them are of key importance. High-speed atomic-force microscopy (HS-AFM) has become an important technique ...
Optics & Photonics
Jan 6, 2022
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123
Amplitude is the magnitude of change in the oscillating variable with each oscillation within an oscillating system. For example, sound waves in air are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during one oscillation. If a variable undergoes regular oscillations, and a graph of the system is drawn with the oscillating variable as the vertical axis and time as the horizontal axis, the amplitude is visually represented by the vertical distance between the extrema of the curve and the equilibrium value.
In older texts the phase is sometimes very confusingly called the amplitude.
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