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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Andrés F.
Boise, US
★★★★★ 5
Excelente
Excelente
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Reviewed in the United States on June 7, 2026
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Yogi at the Beach
Waukegan, US
★★★★★ 5
8oz Size Perfect for Small Amounts of Milk
Size: 6.8oz/200ml Silver
This is a quality pitcher with a nice weight to it. I only use 80ml of milk in my cappuccinos and had trouble getting a good microfoam when using a larger pitcher. This little 8oz pitcher is the perfect size and makes it easier to achieve microfoam. The only potential issue I see is the pitcher may overflow if using more than 80ml although this may be due to my technique.
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Reviewed in the United States on March 6, 2026
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Karen Loeza
Lowell, US
★★★★★ 5
Pretty and functional
Size: 6.8oz/200ml Matte Black
I really liked the size and functionality of this milk pitcher, it’s really elegant looking as well. I use it for when I want to make an iced coffee that I need to mix stuff with and it holds a good amount of coffee. Easy to clean and pour as well, for what I paid I think it’s worth it.
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Reviewed in the United States on January 25, 2026
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James Jones
West Palm Beach, US
★★★★★ 5
Just right!
Size: 6.8oz/200ml Silver
Works great with my cappuccino machine. One espresso or two! Perfect fit.
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Reviewed in the United States on May 4, 2026
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Mikey T.
Lowell, US
★★★★★ 5
Small, works with (some) induction units, just what I needed.
Size: 6.8oz/200ml Silver
It's small and the good thing about it is that it works with my induction (Nuwave Flex Precision, 1,300W.) Not perfectly, but will work. It doesn't work with my larger Duxtop (9600LS/BT-200DZ, 1,800W) because it is looking for more metal to sense before it can trigger the induction function. So, if you have a smaller induction unit it might work. If not, get a CozyKit 5.5" induction diffuser (on Amazon) and heat it up on that via induction. That diffuser should work on any induction unit. I guess we can't do links anymore even if on Amazon?? from attempting to post other reviews, so this is the text discr for the diffuser on Amazon, it's hard to find the smaller one otherwise: (Heat Diffuser Stainless Steel Induction Adapter Plate Removable Handle Coffee Milk Cookware Induction Hob Heat Cooking Diffuser for Electric Stove 5.5inch)
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Reviewed in the United States on May 4, 2025

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