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
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. The outer layer of your force field is hot plasma (hot gas of ion). Where are these ions when the force field is off and how long does it take to turn it back on? The middle layer is the group of laser beams. When the force field is off, do the laser beams stay outside the nanotube layer?
In the absence of a force both the amount and direction of momentum will not change. When two objects with a particular angular moment relative to a common fixed point interact they affect each others angular momentum and the total angular momentum is conserved. When you consider an orbit, the angular momentum is distributed between the spin of the planet itself and the angular momentum of its orbit, but, if a planet is found to spin more slowly than expected, astronomers suspect that the planet has a satellite, since the total angular momentum is shared between the planet and its satellite for the sake of conservation. Some scientists believe that large impacts in the early history of the Solar System may have affected the rotation of some planets. One may have caused Venus to rotate in retrograde and another could account for the 23 degree axial tilt of the Earth.
Describe two differences between ptolemy’s and Copernicus’s models- What is at the centre of the model and the way in which the planets followed smaller circles in their orbits in ptolemy’s model. 3. Describe two similarities between the two models- The number of planets and the circular orbits are the same. 4. Suggest one way in which our current model of the solar system is different from Copernicus’s- There are more planets because we have more scientific equipment to look out further into space so we discover new things in space.
Abduction - A form of nondeductive inference, also known as inference to the best explanation. The Surprise Principle and the Only Game in Town Fallacy are relevant to deciding how strong an abductive inference is. Analogy argument – a nondeductive inference in which one infers that a target object T has some characteristic on the ground that T is similar to some other object A the analog), and A is known to possess that characteristic. (e.g. Other galaxies probably contain life, since they are quite similar to our own galaxy and our own galaxy contains life.)
HSC Chemistry Assessment task 1 Nuclear Chemistry Research report 1. Distinguish between stable and radioactive isotopes and describe the conditions which a nucleus is unstable. To understand if an element is stable we first must understand what stability is. The stability of the nucleus is directly related to the strength of the forces that hold the nuclear particles together. These protons and neutrons of the nucleus are called nucleons.
* 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’. * You are expected to use your skills, knowledge and understanding to: * compare the use of different types of waves for communication, * your expected knowledge and understanding of waves used for communication is limited to sound, light, microwaves, radio waves and infrared waves. * evaluate the possible risks involving the use of mobile phones, * and consider the limitations of the model that scientists use to explain how the universe began and why the universe continues to expand. AQA GCSE Science PHYSICS Unit P1.5.1 General properties of waves * a) Know and understand that waves transfer energy. * b) Know and understand that waves may be either transverse or longitudinal.
How did Hubble discover it? Hubble's LAW says that the universe is expanding and the further galaxies are traveling faster away then the closer galaxies. How does the abundance of light elements provide support for the big bang picture of the universe? It shows the first elements of our universe hydrogen helium and lithium was formed 3 minutes after the bis bang. Is the universe getting warmer or colder?
The teleological theory offers no scientific evidence, or evidence of any kind for the creation of the universe, it is based loosely on an analogy. The analogy opinion is too broad to be valid. I believe that things like volcanos and earthquakes that happen naturally are better explained by science. These things seem more probable in a universe that was created randomly by science, by the big bang, than if the universe was created specifically for a certain function by
The origin of 51 Pegasi B is also an extremely interesting story, as it is hard to believe that a planet could form so close to a star. An article from The Science Teacher published in 1996 will be used to examine the theories of origin proposed at the time of the