IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The 5071A Cesium Primary Frequency ...

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Atomic and molecular physics it the study of the properties, dynamics and interactions of the basic (but not fundamental) building blocks of matter. A crucial component of this is understanding the ...

Click to open image viewer. This lithographed tin “Atomic Space Gun” was made in Japan in the 1950s that sparks and makes a whirring noise when the trigger is squeezed. Atomic themes of the post-war ...

杠杆: 1:1 1:10 1:25 1:50 1:100 1:200 1:400 1:500 1:1000 ...

A simpler structure near Stonehenge has been examined 而在附近的巴尔福德村发现的这处遗址结构则简单得多。如今，它只剩下了地面上两个相距 120 ...

The IAEA provides fundamental nuclear data for energy and non-energy applications, as well as atomic data for fusion energy research. Nuclear structure and decay data describe the lifetimes and decay ...

The Long March 2F carrying the uncrewed Shenzhou-22 spacecraft climbs into a blue sky above Jiuquan spaceport, Nov. 25, 2025. Credit: CASC HELSINKI — China’s secretive spaceplane has released an ...

The Doomsday Clock is a design that warns the public about how close we are to destroying our world with dangerous technologies of our own making. It is a metaphor, a reminder of the perils we must ...

It's never been easy for fishermen in England's southwest to make a living, but now they face a competitor: around 200,000 ...

五角大楼星期五(7月10日)公布了第四批不明空中现象(UAP)的解密文件，包括一个物体侵入德克萨斯州核武器设施上空空域的记录，以及一名军方飞行员报告的在他28年服役生涯中遇到的“与我见过的任何东西都不一样”的物体。

Thirteen artifacts from the National Museum of American History chronicle profound changes in the life of the nation Photographs by Jessica Antola by Robin Marantz Henig The sexual revolution didn’t ...