Atoms can absorb and reemit light—this is an everyday phenomenon. In most cases, however, an atom emits a light particle in all possible directions—recapturing this photon is, therefore, quite hard.
Optics & Photonics
Jan 16, 2024
4
171
A group of Japanese and Peruvian archaeologists have discovered the 3,000-year-old tomb of a priest alongside ceramic offerings in northern Peru.
Archaeology
Aug 28, 2023
0
675
Children do better at math when music is a key part of their lessons, an analysis of almost 50 years of research on the topic has revealed.
Mathematics
Jun 29, 2023
1
3961
Natural and artificial crystals can change the spectral color of light, which is known as the nonlinear optical effect. Color conversion is used for numerous applications, including nonlinear microscopy for biological structures ...
Nanophysics
May 18, 2023
0
139
Every material possesses a unique natural vibration frequency such that when an external periodic force is applied to this material close to this frequency, the vibrations are greatly amplified. In the parlance of physics, ...
Condensed Matter
Apr 20, 2023
0
45
When two musical notes are played simultaneously, the human ear can perceive weak additional tones called combination tones. These subjective tones result from the nonlinearity of the inner ear and are attributed to the amplification ...
General Physics
Nov 1, 2022
1
229
The riskiest instrument is the voice, at least when it comes to spreading viruses such as SARS-CoV2. Compared to breathing quietly, during singing or speaking infected people release more than 500 times particles into the ...
General Physics
Sep 23, 2022
0
193
In classical models of stellar evolution, so far little importance has been attached to the early evolution of stars. Thomas Steindl from the Department of Astro- and Particle Physics at the University of Innsbruck now shows ...
Astronomy
Sep 19, 2022
0
287
Researchers have identified the ingredients in chemistry formulas from an 2,300-year-old Chinese text, revealing ancient metallurgy was more complex than expected.
Archaeology
Aug 10, 2022
0
302
The eerie, ethereal sound of the singing saw has been a part of folk music traditions around the globe, from China to Appalachia, since the proliferation of cheap, flexible steel in the early 19th century. Made from bending ...
General Physics
Apr 22, 2022
3
304
