Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal ...
This contribution is part of the special series of Inaugural Articles by members of the National Academy of Sciences elected in 2023. Contributed by Shuhai Xiao; received April 19, 2024; accepted ...
Water is made of hydrogen and oxygen, and sometimes these atoms are slightly heavier than usual. These heavier forms are called isotopes. As water evaporates or moves through the atmosphere, the ...
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