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20.45 EUR 40.00 BGN

The book is an attempt to briefly describe the chemical elements and their stable and radioactive isotopes – from the Big Bang, the initial synthesis of the lightest elements in space, to the subsequ ...

The Laser

11.25 EUR 22.00 BGN

The book “The Laser” consists of three chapters. The first chapter is devoted to the beginning of the scientific studies on metal vapor lasers in Bulgaria. The pre-history of laser research at the IS ...

The Rhodope metallogenic province in Bulgaria

15.34 EUR 30.00 BGN

The Rhodope metallogenic province in Bulgaria includes the Rhodopes, Rila, Pirin and SW Bulgaria, Osogovo. The metallogenic appearance of this province was formed during the late Alpine era, when almo ...

The universe called matter

0.51 EUR 1.00 BGN

The book is a fascinating account of the properties of organic substances—taste, smell, toxicity, color, etc. Readers will learn many interesting things about natural and synthetic compounds with dete ...