资讯
He worked to develop an atomic clock that is essential to GPS and helped confirm a rare state of matter predicted by Albert ...
Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.
Bechtol and his fellow scientists hope they can learn more about the universe than all of scientific progress has allowed in ...
The book is intended for students of medical faculty and faculty of stomatology as well as for young doctors specializing in oncology, young oncologists, a wide range of young doctors dealing with ...
The textbook for Class XII has been written in continuation of the textbook for Class XI. Most of the topics introduced in the book for Class XI have been further studied in the present textbook as a ...
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