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The universe is defined as the entirety of existence. It is everything that we can observe, measure, and even hypothesize. It includes earth with its living things together with all the other astronomical objects existing in the vastness of space.

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15y ago

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Who defined gravity?

Gravity was defined by Sir Isaac Newton. In his law of universal gravitation, Newton described how all objects with mass are attracted to each other with a force proportional to their masses and inversely proportional to the square of the distance between them.


Anything that has and takes up space is matter?

Matter is defined as anything that has mass and takes up space. This includes everything we can see, touch, taste, and smell in the universe, from the smallest particles to the largest planets.


Is the universe expanding or contracting?

The universe is expanding.


What are the implications of a dodecahedral universe on our understanding of the cosmos?

A dodecahedral universe would suggest that the universe is finite and has a specific shape, which could challenge the current understanding of an infinite and unbounded universe. This could lead to new insights into the structure and geometry of the cosmos, potentially changing our understanding of how the universe functions and evolves.


Do molecules have a surface?

Wonderful question, wonderful answer: "Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe. For example, there are no solids in the universe. There's not even a suggestion of a solid. There are no absolute continuums. There are no surfaces. There are no straight lines." --R. Buckminster Fuller Do molecules have a surface? Yes and no. The surface of a molecule is less clearly defined the closer one gets to it to inspect it. The molecule is, after all, atoms, and the surface of atoms isn't clearly defined, so why would a molecule's? The outer surface is just a "fuzzy area" where electrons may, or may not be at any given moment. The surface is "harder" as one gets closer and the probability of electrons actually being there increases.