SKU: 70717697680

Gravity

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Description

GravityThis book picks up where the last book, Underwood, T. G. (2023). General Relativity, left off, addressing the omission that A fundamental theoretical explanation for the weak attractive gravitational force between matter is also long overdue. We know less about gravity than any other force. The purpose of this book is to try to fill that void. Part I reviews contributions to the understanding of the effects of gravity, starting with extracts from

This book picks up where the last book, Underwood, T. G. (2023). General Relativity, left off, addressing the omission that ÒA fundamental theoretical explanation for the weak attractive gravitational force between matter is also long overdue.Ó We know less about gravity than any other force. The purpose of this book is to try to fill that void.
Part I reviews contributions to the understanding of the effects of gravity, starting with extracts from Kepler and Newton. Part I also describes alternative forms of NewtonÕs law provided by Gauss's law for gravity, and Poisson's equation.
Part II addresses ÒWhat is Gravity?Ó. It begins by reviewing EinsteinÕs unsuccessful attempts at producing a classical unified field theory, a unified theory of electromagnetism and gravity, between 1923 until he died in 1955. But then it moves on to consider quantum entanglement, or some form of entanglement between matter, as a potential source of gravity and to examine the origin of gravity according to the Big Bang theory. In an attempt to answer the question: ÒWhy does matter attract matter?Ó, facts related to gravity and other forces of nature are listed and reviewed.
The underlying cause of gravity remains elusive. From this analysis it is most likely to be found in the initial creation of matter and expansion of the universe, not in quantum theory, nor in a unified theory of electromagnetism and gravity. This appears to suggest that gravity resulted from some form of entanglement between matter after it was driven apart in the expansion of the universe following the Big Bang.
The existence of a very large amount of energy at the time of the origin of the current universe, makes the idea of a universe in which gravitational attractive forces eventually overcome the forces causing the expansion of the universe particularly attractive, in that it provides an explanation for this energy and for the Big Bang without invoking dark matter or dark energy. The gravitational field at the at the surface of the universe, is approximately equal to the gravitational constant.

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SKU: 70717697680

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Amazon Customer
Carnegie, US
★★★★★ 5
True to size and comfort.
Color: Black - Set 3, Size: 7X-Large
Great product and true to size. It's comfortable and not to tight. I will be ordering more in the future.
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Reviewed in the United States on May 27, 2026
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Kay Hairston
San Leandro, US
★★★★★ 5
this is my go to when needing new underwear.
Size: 3X-Large, Color: Black/Navy/Dark Purple/Red
Love these boyshorts for women. They're so comfortable, no crawling and breathable. I recommend for plus size women who has legs rubbing together causing irritation. Nice price as well. This is my go to when needing new underwear.
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Reviewed in the United States on May 27, 2026
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Diane
Louisville, US
★★★★★ 5
Great!
Size: Small, Color: Black/Heather Gray/White/Nude
Comfy, good fit, good quality cotton and flat seams around the crotch. Normal size small. I wouldn’t wear these with yoga pants, but nice under looser fitting garments. I would buy more colors.
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Reviewed in the United States on May 28, 2026
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Arsenio Braga
Fort Morgan, US
★★★★★ 5
There is a seam up the front. I think perhaps it being seamless would be better.
Size: Medium, Color: Black
Like anything off Amazon I wasnt expecting anything perfect and ready to have to mail it back. Pleasantly surprised by the softness and durability. The waist band isn't to small on a medium so it fits actually so comfy. I wear them as underwear and as shorts for my skirts n dresses. Id recommend but I say size up if you want a comfy fit. But down if you want a fitted fit fit. Comfy still is fitted but better feeling on if that makes sense. Also the crotch of the shorts/undies has essentially extra fabric sewed in creating that nice comfort. Ill snag a photo when I have time.
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Reviewed in the United States on May 3, 2026
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Stephanie Vaughn
Belleville, US
★★★★★ 4
Product varies from package to package
Size: X-Large, Color: Black/Navy/Dark Purple/Red
Over a two year period this is my 4th purchase. They started as sleep shorts and have replaced other underwear most of the time because they are comfortable and the quality is pretty good. However there are differences in between every package. The length has varied up to an inch, the material has changed, and some are slightly tighter than others. That said it works for me. I am a side sleeper and sometimes the side seam bothers me.
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Reviewed in the United States on March 9, 2026

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