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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... magnetic effects of an electric current , went on to consider the possibility of the reverse effect , that is , an electric current produced by magnetism . Although during the 1820s Faraday produced no useful results , in Paris ...
... magnet that various experiments can reveal . Later , when he came to work with electro- magnetic induction in 1831 , this position could no longer be held . Even later , in 1845 , he discovered an interaction between magnet- ism and ...
... ( magnetic ) field vibrates in the plane marked E ( B ) . — an In this process a point will be reached when the ... magnetic field at right angles to it , as shown in Figure 7.2 . The magnetic field in turn collapses , generating remember ...
المحتوى
From the mastery of fire to science in antiquity | 1 |
Copernicus to Newton | 35 |
Science technology and communication | 77 |
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