National Physical Laboratory of India is realized by using an absolute radiometer. For practical work, a group of tungsten incandescent lamps are used. The level of uncertainty is ± 1.3 × 10. Experimental work has been initiated to realize mole, the SI unit for amount of substance The NPL does not maintain standards of measurements for ionizing radiations. This is the responsibility of the Homi Bhabha Atomic Research Centre, Mumbai. The standards maintained at NPL are periodically compared with standards maintained at other National Metrological Institutes in the world as well as the BIPM in Paris. This exercise ensures that Indian national standards are equivalent
The Tao of Physics what has happened. The Tao of Physics The Tao of Physics: An Exploration of the Parallels Between Modern Physics and Eastern Mysticism is a 1975 book by physicist Fritjof Capra. It was a bestseller in the United States and has been published in 43 editions in 23 languages. The fourth edition in English was published in 2000. The following excerpt from "The Tao of Physics" summarizes Capra's motivation for writing this book “Science does not need mysticism and mysticism does not need science. But man needs both.” According to the preface of the first edition, reprinted in subsequent editions, Capra