A Brief History of Science: As Seen Through the Development of Scientific InstrumentsConstable, 2001 - 425 من الصفحات From the beginnings of history, with gnomons and sundials, through to the twenty-first century and the 26-kilometre underground particle accelerator, the author describes the way that the design and production of scientific instruments has extended the frontiers of science. Man's desire to understand the universe has led to the making of more and more sophisticated instruments - first to record and measure (Arab numerals, standardised measures), to examine ever more minutely (the microscope, the lens, the prism), on through electromagnets, cathode tubes, thermometers, vacuum pumps, X-rays, counters and accelerators, semi-conductors and microprocessors, down to new instruments now being designed to observe matter at zero temperatures - presenting immense technological problems in the requirement for instruments that can operate in conditions where normal properties no longer hold. Accessible popular science |
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... periodic table ( see Appendix A ) then shows how , with the increase in atomic weight , elements at first acquire ... periodic way on the magnitude of the atomic weight of the elements . In compiling the periodic table Mendeleyev faced ...
... periodic table ( which by 1910 was nearly complete ) . Bohr suggested that this corre- sponded to one unit charge of the atomic nucleus , so that the place of any element in the periodic table corresponded to the positive charge of its ...
... periodic table . Of the 14 elements in this block , only two , cerium ( 58 ) and erbium ( 68 ) , were known in 1869 , when Mendeleyev established the periodic table . These are both rare earths , elements so difficult to discover and ...
المحتوى
From the mastery of fire to science in antiquity | 1 |
Copernicus to Newton | 35 |
Science technology and communication | 77 |
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