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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... beryllium , carbon and argon . On 17 February 1932 , he reported his results in a letter to Nature : They are very difficult to explain on the assumption that the radiation from beryllium is a quantum radiation , if energy and momentum ...
... beryllium ( the set - up used by Chadwick to discover the neutron in 1932 ) , provided Fermi with the required ... beryllium target to be placed inside it . To maximise the bombardment of the silver by the neutrons emitted from the ...
... beryllium - 8 , and then within the 10-19 - odd second available , have a third a - particle - hence the triple alpha- collide , so as to create carbon - 12 . For Salpeter this collision would simply blow the beryllium - 8 nucleus apart ...
المحتوى
From the mastery of fire to science in antiquity | 1 |
Copernicus to Newton | 35 |
Science technology and communication | 77 |
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