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Description
The Search for Superstrings, Symmetry, and the Theory of EverythingSince Einstein's time, a "theory of everything" one coherent mathematical model that would encompass all the forces and particles of nature has become the Holy Grail of physics, and its pursuit has resulted in some of the most extraordinary ideas in the history of science. This invaluable primer at last enables all of us to understand these ideas. John Gribbin provides a brief, succinct, accessible overview of the hundred year saga of particle
Since Einstein's time, a "theory of everything" -- one coherent mathematical model that would encompass all the forces and particles of nature -- has become the Holy Grail of physics, and its pursuit has resulted in some of the most extraordinary ideas in the history of science. This invaluable primer at last enables all of us to understand these ideas. John Gribbin provides a brief, succinct, accessible overview of the hundred-year saga of particle physics, explaining everything from the basics (how subatomic particles work) to the cutting-edge research that has produced dazzling new models of the universe, among them the radical theories of "superstrings" -- the hypothesis that particles are loops of vibrating "string" -- and "supersymmetry."Binding Type: Paperback
Publisher: Back Bay Books
Published: 08/01/2000
ISBN: 9780316326148
Pages: 224
Weight: 0.63lbs
Size: 8.50h x 5.57w x 0.56d
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4.8 ★★★★★
Based on 2282 reviews
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Product Reviews
★★★★★ 1
The blade is not sharpen.
Style: Lawn Edger w/(1) 4.0 Ah Battery
I had no problems assembling the equipment. The problem is with the blade. It doesn't have any sharpen. I bough spares blades which have a different configuration and better edge. However I haven't been able to unscrew the bolt in order to install the new blade. It is extremely tied. One would think that you purchase this equipment, at a high price, and would be able to use it right away. In your dream. This is a Third World Country selling things at an incredible high prices, for the profit of the American companies using the manpower of other Third World Countries or China.
Since the blade is not sharp, when you try to use the equipment it got disconnected. Therefore it does not work with the blade that comes from the manufacturer. Total disaster.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Worx very well!
Style: Lawn Edger w/(1) 4.0 Ah Battery
Worx very well. ;)
More power than I expected from a 20v cordless machine. And with the 4Ahr battery it comes with, I was able to do the drive, walks, and patio without having to change batteries. I own 2 Worx string trimmers, chainsaw, hedge trimmer, drill impact driver, and leaf blower. Love them all.
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Reviewed in the United States on May 2, 2026
★★★★★ 3
Problematic instructions
Style: Lawn Edger w/(1) 4.0 Ah Battery
The product is great once u figure out how to assemble. The instructions don’t do it. I was not happy. Every part was a challenge. The instruction book only shows a photo but not how to get it to look like the photo.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Works great
Style: Lawn Edger w/(1) 4.0 Ah Battery
Works great but the trenches part could be wider for what we need
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Reviewed in the United States on June 6, 2026
★★★★★ 5
cuts well
Style: Lawn Edger w/(1) 4.0 Ah Battery
easy to operate cuts well adjusts easy and gard keeps debris from hitting me good battery life
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Reviewed in the United States on March 23, 2026
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