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, ...
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 ...
A fascinating study, published in The Astrophysical Journal, has shed light on a mysterious chapter in our Solar System’s history. Around 4 to 5 million years ago, the Sun had a close encounter with ...
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: ...
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