Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a ...

Question: We have a 15,000-gallon vinyl-lined pool equipped with an ionization system and sand filter. The copper level in the pool is recommended to be at 0.3 parts per million. It was much higher, ...

After few femtoseconds, the double excited state decays by electron emission, generating a higher charge state. Compared to ...

Researchers have for the first time measured the first ionization energy of lawrencium, the last of the actinides, validating predictions of the element’s electronic structure (Nature 2015, DOI: ...

The team* led by Prof. Toru Misawa of the School of General Education, Shinshu University found for the first time that the internal donut-shaped structure of the central nuclei of bright galaxies in ...