The spacetime geometry of the Universe which drastically restricts the set of cosmological models compatible with general relativity, the mass and flatness 4. The Hubble Law which states that the universe is always expanding. Flat model universes are infinite and expand forever and modern observation shows that the universe is flat. The expanding universe must have begun from the moment of extreme conditions where the matter and energy of the universe compressed into a high-density, high-temperature
Then Kaku states that force fields can do more than deflecting laser beams because it can levitate objects by the use of magnetic force fields. To support that, he explains that when we place two magnets opposite to each other, the two magnets will repel each other. However he wrote that making force fields and to levitate heavy objects is nearly impossible since we lack advanced technology. For my response, Kaku doesn’t completely explain everything. Suppose that you have a structure on a planet or a spaceship in the middle of nowhere, and suppose you don't want the force field on all the time either because there are times when protection isn't needed.
A scientifically accepted general principle supported by a substantial body of evidence offered to provide an explanation of observed facts and as a basis for future discussion or investigation (Lincoln et al.,1990). Again in simple terms, a theory explains how nature works. Can be modified. In conclusion, scientific laws and theories officially do not have the same meaning. I can understand how people can confuse these two words for having the same
In the miniscule fractions of a second after the Big Bang, the universe was tremendously hot, and as a result, both matter and antimatter was rushing apart in all directions. As it began to cool, almost an equal amount of matter and antimatter collided to create pure energy. However, the slight asymmetry resulted in the universe maturing in such a way that allowed matter to persist above antimatter (LaRocco & Rothstein 2012). Secondly, Darwin’s Theory of Evolution states that all life descended from a common ancestor. As a result of random genetic mutations which occur within an organism’s genetic code, certain beneficial mutations result in the aid of survival, which are then passed down through successive generations.
By age 24 , he had formed a brilliant theory that explained why the planets moved as they did. Newton saw an apple fall from a tree. He wondered whether the force that pulled that apple to the earth might also be the same force that controlled the movements of the planets. Newton perfected his theory. Using mathematics, he showed that a single force keeps the planets in their orbit around the sun.
One characteristic is the vision of exploration. They take a problem and explore it and develop tests and theories to incorporate a solution to the problem. Another characteristic, I envision, is they are inquisitive and creative. They ask the questions: who, what, when, where, why and how in order to create a scenario where they can be creative and journey into uncharted territory of science and the unknown, especially in astronomy and physics. Lastly, they are very analytical.
Physics 1 Unit P1.5 The use of waves for communication and to provide evidence that the universe is expanding * Know and understand that electromagnetic radiations travel as waves and move energy from one place to another. * Know that these radiations can all travel through a vacuum and do so at the same speed. * Know and understand that waves cover a continuous range of wavelengths called the electromagnetic spectrum. * Know that and understand that sound waves and some mechanical waves are longitudinal, and cannot travel through a vacuum. * Know that current evidence suggests that the universe is expanding and that matter and space expanded violently and rapidly from a very small initial ‘point’, ie the universe began with a ‘big bang’.
This theory has confronted many physicists with decisions that challenge conventional wisdom and this “fork in the road” has the potential to radically change the modern day fundamental physics. Alan Guth, a cosmological pioneer, said, “The multiple-universe idea severely limits our hopes to understand the world from fundamental principles.” Lightman argues that we are living in a universe that is uncalculable, created by accident. Lightman argues this because of the principle of fine-tuning, miniscule changes account for the possibility of life. For example, out of all the possible amounts of dark matter, our universe contains the minute range which allows life. Due to this principle, Lightman views only to solutions as realistic explanations, intelligent design and the multiverse theory.
Enumerated Preview: I will talk to you today about what wormholes are, how they exist and what they can do. Body: 1.Theoretically, a wormhole is a passage through space-time that could create shortcuts for long journeys across the universe. A. Wormholes are predicted by Einsteins Theory of General Relativity a. His theory of general relativity allows for wormholes to exist because it states that any mass curves space time, therefore, a giant mass can cause a wormhole to open. Transition: I just told you the definition of a wormhole, now I will talk to you about how they can exist.
This does not enhance their capacity to split, but it does have an important bearing on their capacity to facilitate an explosion. When a U-235 atom splits, it gives off energy in the form of heat and Gamma radiation, which is the most powerful form of radioactivity and the most lethal. When this reaction occurs, the split atom will also give off two or three of its "spare" neutrons, which are not needed to make either of the parts after splitting. These spare neutrons fly out with sufficient force to split other atoms they come in contact with. In theory, it is necessary to split only one