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Description
Quintessence: The Mystery of Missing Mass in the UniverseWill the universe continue to expand forever, reverse its expansion and begin to contract, or reach a delicately poised state where it simply persists forever? The answer depends on the amount and properties of matter in the universe, and that has given rise to one of the great paradoxes of modern cosmology: there is too little visible matter to account for the behavior we can see. Over ninety percent of the universe consists of "missing mass" or
Will the universe continue to expand forever, reverse its expansion and begin to contract, or reach a delicately poised state where it simply persists forever? The answer depends on the amount and properties of matter in the universe, and that has given rise to one of the great paradoxes of modern cosmology: there is too little visible matter to account for the behavior we can see. Over ninety percent of the universe consists of "missing mass" or "dark matter" - what Lawrence Krauss, in his classic book, termed "the fifth essence."In this new edition of T he Fifth Essence, retitled Quintessence after the now widely accepted term for dark matter, Krauss shows how the dark matter problem is now connected with two of the hottest areas in recent cosmology: the fate of the universe and the "cosmological constant." With a new introduction, epilogue, and chapter updates, Krauss updates his classic for 1999 and shares one of the most stunning discoveries of recent years: an anti-gravity force that explains recent observations of a permanently expanding universe.Binding Type: Paperback
Publisher: Basic Books
Published: 12/21/2000
ISBN: 9780465037414
Pages: 384
Weight: 0.98lbs
Size: 8.59h x 5.48w x 0.81d
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4.4 ★★★★★
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Product Reviews
★★★★★ 3
Not very sturdy
The oak that this is made of is very nice. The little bit of extra counter space is nice. The problem is the bracket to hold it up is kind of small and flimsy, so the shelf won't bear much weight. It will be ok for putting light things on. Also had a problem getting it to hang flat in the down position.
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Reviewed in the United States on February 22, 2022
★★★★★ 5
A good product at a good price. this is easy to install, and very sturdy.
This will expand our counter space in our camper, it is very sturdy and well built, solid wood, and a nice hinge.
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Reviewed in the United States on December 13, 2023
★★★★★ 1
No quality control.
Look at other options. Received with hinge already attached to the wood, at an angle. Tried to contact seller, no response. I fixed it myself. Rather than having hinge attached they should just let the buyer install the hinge. Made in Vietnam.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Perfect
This is perfect for our camper trailer. It gives just enough extra counter space. It can hold bowls and items needed for cooking or washing dishes or setting drinks on it. I would only use it as a cutting board if the place you screw it into is sturdy. If it's a flimsy wall, I would add support to it. Definitely recommend this board.
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Reviewed in the United States on May 24, 2023
★★★★★ 5
They do the trick. That's for sure.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Fantastic. They vary in thickness to accommodate different size punctures, they look nice, good value for the money, the sand out the tire and internal belt to stop leakage. and they easy enough the use.
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Reviewed in the United States on September 26, 2025