Jonny Nelson introduces an animated explanation of black body radiation. All objects are continually absorbing and emitting infrared radiation, for example a heater (radiator). There are no known ...

This includes blackbody radiation, the heat emitted by surrounding objects. Blackbody radiation can cause electrons in Rydberg atoms to jump to even higher orbits. Rising temperatures increase the ...

This includes blackbody radiation, the heat emitted by surrounding objects. Blackbody radiation can cause electrons in Rydberg atoms to jump to even higher orbits. Rising temperatures increase the ...

New atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

(Courtesy: R Jacobson/NIST) A new way to measure the temperatures of objects by studying the effect of their black-body radiation on Rydberg atoms has been demonstrated by researchers at the US ...

The year was 1900 and Max Planck was a young physicist working on the problem of blackbody radiation. This was an intense area of research because the experimental data—the radiation emitted by ...

Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...

从古埃及的日晷到现代的原子钟，人类对时间测量的精度不断提升。而如今，光学钟的精确度已超越了当前以铯-133原子跃迁定义的“秒”。这引发了一个关键问题：我们是否应该重新定义时间的基本单位？本文将系统解析当前时间计量的框架、光学钟的革命性突破，以及重新定 ...

In the hush between star-bright infinities and the hum of everyday tasks, a quiet summons persists. No single measurement or ...

Terahertz technology seems set to become important in security screening and the pharmaceutical industry. The ultimate solution for airport security would be a system that not only tells security ...

Spectrometers are used worldwide under diverse climatic conditions. Their dependable performance relies on the integrated ...