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Формат:
только полные версии
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Методы квантовой теории...
Теория вероятностей. Задачи с...
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Физика для углубленного изучения 1....
Вакуум для науки и...
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Everything around us is made of 'stuff', from planets, to books, to our own bodies. Whatever it is, we call it matter or material substance. It is solid; it has mass. But what is matter, exactly? We are taught in school that matter is not...