In For the affection of Physics, beloved MIT professor Walter Lewin, whose riveting physics lectures made him a YouTube super-star, takes readers on a remarkably enjoyable, artistic, and infrequently wacky trip that brings the fun of physics to life.
“For the affection of Physics captures Walter Lewin’s remarkable mind, ardour for physics, and brilliance as a teacher”—Bill Gates.
For greater than thirty years as a well known professor on the Massachusetts Institute of expertise, Lewin’s lectures made physics not just available yet enjoyable, no matter if placing his head within the direction of a wrecking ball, supercharging himself with 300 thousand volts of electrical energy, or demonstrating why the sky is blue and clouds are white. In For the affection of Physics, Lewin takes readers on a fabulous journey, opening our eyes as by no means sooner than to the wonders of physics and its extraordinary skill to bare the sweetness and gear embedded in our world.
Could or not it's real that we're shorter status up than mendacity down? Why will we snorkel no deeper than approximately one foot lower than the skin? Why are the colours of a rainbow continually within the related order, do we stretch a hand out and contact one?
Using fantastically transparent and easy reasons of phenomena we’ve regularly questioned approximately, akin to what the massive bang could have seemed like had somebody existed to listen to it, Lewin surprises and delights with physics-based solutions to even the main elusive questions.
Whether displaying us flea is robust adequate to drag a heavy publication throughout a desk, or describing the best, most eldritch evidence concerning the tiniest bits of topic, Lewin continually entertains as he edifies. “For me,” Lewin writes, “physics is a manner of seeing—the extraordinary and the mundane, the sizeable and the minute—as a gorgeous, thrillingly interwoven whole.” For the affection of Physics is a unprecedented gem that would swap the best way readers see the realm.
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Additional info for For the Love of Physics: From the End of the Rainbow to the Edge of Time - A Journey Through the Wonders of Physics
The orange ones, particularly, that are known as “Fiesta red,” have uranium oxide in them, because it was once a typical materials in ceramic glazes. I carry a plate close to a Geiger counter, and it starts to beep quickly. The uranium within the plate emits gamma rays because of the strategy we name fission, that is an analogous approach that drives nuclear reactors. After this demonstration, I regularly invite scholars to come back to dinner at my domestic, yet surprisingly i have not gotten any takers. Fission, or splitting of heavy nuclei, generates quite a lot of strength, no matter if in a nuclear reactor, within which the chain reactions splitting uranium-235 nuclei are managed, or in an atomic bomb, during which the chain reactions are out of control and bring super destruction. A nuclear energy plant that produces a couple of billion joules according to moment (109 watts, or 1,000 megawatts) consumes approximately 1027 uranium-235 nuclei in a yr, which quantities to just approximately four hundred kilograms of uranium-235. even if, simply zero. 7 percentage of ordinary uranium involves uranium 235 (99. three percentage is uranium-238). as a result, nuclear energy crops use enriched uranium; the measure of enrichment varies, yet a standard quantity is five percentage. which means rather than zero. 7 percentage uranium-235, their uranium gas rods include five percentage uranium-235. hence a 1,000-megawatt nuclear reactor will devour approximately 8,000 kilograms of uranium according to 12 months, of which approximately four hundred kilograms is uranium-235. compared, a 1,000-megawatt fossil-fuel energy plant will devour approximately five billion kilograms of coal according to yr. The enrichment of uranium is dear; it’s performed with hundreds of thousands of centrifuges. Weapons-grade uranium is enriched to no less than eighty five percentage uranium-235. possibly you currently comprehend why the realm is particularly anxious approximately international locations that enhance uranium to an unspecified measure that can not be confirmed! In nuclear energy vegetation, the warmth produced by means of the managed chain reactions turns water into steam, which then drives a steam turbine, generating electrical energy. A nuclear energy plant’s potency changing nuclear strength into electrical energy is set 35 percentage. if you happen to learn nuclear strength plant produces 1,000 megawatts, you don't know if it is 1,000 megawatts overall strength (of which 0.33 is switched over to electricity and of which 2/3 is misplaced as heat), or no matter if it’s all electrical energy during which case the complete plant’s energy is ready 3,000 megawatts. It makes a tremendous distinction! I learn the day before today within the information that Iran is almost immediately going to place on-line a nuclear strength plant that would produce 1,000 megawatts of electrical energy (that’s transparent language! ). As main issue approximately worldwide warming has elevated dramatically long ago few years, the nuclear strength choice is coming again into fashion—unlike strength vegetation burning fossil fuels, nuclear vegetation don’t emit a lot within the means of greenhouse gases. There are already greater than 100 nuclear energy crops within the usa, generating approximately 20 percentage of the power we devour. In France this quantity is ready seventy five percentage.