A new study carried outby the Japan Aerospace Exploration Agency (JAXA) suggests that whenthe universe was between two to four billion years old, the elementsused to create everything from the largest ...
IN a recent communication 1, Ahrens reported some data on the frequency distribution of some of the elements in igneous rocks, and enunciated a geo-chemical law to the effect that the concentration of ...
Study of some processes of nucleosynthesis in the evolving galaxy / A.K. Lavrukhina and R.I. Kuznetsova -- Some long-lived and stable nuclides produced by nuclear reactions / R. Gensho [and others] -- ...
A bandpass allows a certain electrical signal to pass while filtering out undesirable frequencies. In a speaker bandpass, the mid-range speaker doesn’t receive tones meant for the tweeter or woofer.
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