A Brief History of Science: As Seen Through the Development of Scientific Instruments
Constable, 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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Fire, following Lavoisier, is the result of a chemical reaction between oxygen and
some other chemical, generally an organic compound, that is, one based on
carbon. Since oxygen is the main reactive component of the earth's atmosphere
the radioactive elements in solid material that would slow down the neutrons
emitted as a result of the fission process: this was necessary for the so-called '
slow chain reaction', which attained its maximum effect of 'neutron capture' with a
This, however, was subject to a critical limitation: according to a paper published
by Bohr in September 1939, only the odd- numbered isotope of uranium, 235U,
could produce a chain reaction.89 The problem was that 99.275% of all natural ...
ما يقوله الناس - كتابة مراجعة
From the mastery of fire to science in antiquity
Copernicus to Newton
Science technology and communication
7 من الأقسام الأخرى غير ظاهرة