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Search results 21 - 30 of 278 matching essays
- 21: Materialism Vs Idealism
- ... he does not deny the existence of a god, his work is aimed at proving that the world is not guided or controlled by a divinity. Lucretius asserts that matter exists in the form of atoms, which move around the universe in an empty space. This empty space, or vacuity, allows for the movement of the atoms and without it everything would be one mass. He explains that matter and vacuity can not occupy the same space, "...where there is empty space, there matter is not...", and these two things make up the entire universe. These invisible particles come together to form material objects, you and I are made of the same atoms as a chair or a tree. When the tree dies or the chair is thrown into a fire the atoms do not burn up or die, but are dispersed back into the vacuity. The ...
- 22: Silicon
- ... electrical properties of semiconductor material. They learned they could change and control these properties by "doping" the semiconductor, or infusing it with selected elements, heated to a gaseous phase. When the semiconductor was also heated, atoms from the gases would seep into it and modify its pure, crystal structure by displacing some atoms. Because these dopant atoms had different amount of electrons than the semiconductor atoms, they formed conductive paths. If the dopant atoms had more electrons than the semiconductor atoms, the doped regions were called n-type to signify and ...
- 23: On J.J. Thompson
- ... electricity inside empty glass tubes. He was investigating a long-standing puzzle known as "cathode rays." His experiments prompted him to make a bold proposal: these mysterious rays are streams of particles much smaller than atoms, they are in fact minuscule pieces of atoms. He called these particles corpuscles, and suggested that they might make up all of the matter in atoms. It was startling to imagine a particle residing inside the atom -- most people thought that the atom was indivisible, the most fundamental unit of matter. Thomson's speculation was not unambiguously supported by his ...
- 24: Selfish Genes And Selfish Meme
- ... be taken. As Dawkins begins his writing, In the beginning was simplicity , and from a scientific perspective, very few other outlooks can be adopted. As it is a fact that everything is made up of atoms and the universe is made up of stable things- rocks, galaxies, plants etc, it is logical to deduce that these stable things are in fact stable patterns of atoms. These stable patterns of atoms are formed because in certain conditions, certain configurations are more stable. This in effect is the cause for which many different elements have been formed by simply losing or gaining electrons and or protons, ( ...
- 25: A Quantum Computer
- ... to 1981, when Richard Feynman noted that physicists always seem to run into computational problems when they try to simulate a system in which quantum mechanics would take place. The calculations involving the behavior of atoms, electrons, or photons, require an immense amount of time on today's computers. In 1985 in Oxford England the first description of how a quantum computer might work surfaced with David Deutsch's theories. The ... at the end of the tunnel that quantum computers may one day become a reality," says Gilles Brassard of University of Montreal. Quantum Mechanics give an unexpected clarity in the description of the behavior of atoms, electrons, and photons on the microscopic levels. Although this information isn't applicable in everyday household uses it does certainly apply to every interaction of matter that we can see, the real benefits of this ... This quantum system must be able to program the equation into it, verify it's computation, and extract the results. Several possible systems have been looked at by researchers, one of which involves using electrons, atoms, or ions trapped inside of magnetic fields, intersecting lasers would then be used to excite the confined particles to the right wavelength and a second time to restore the particles to their ground state. ...
- 26: Quantum Computers Fact -or- Fantasy?
- ... to 1981, when Richard Feynman noted that physicists always seem to run into computational problems when they try to simulate a system in which quantum mechanics would take place. The calculations involving the behavior of atoms, electrons, or photons, require an immense amount of time on today's computers. In 1985 in Oxford England the first description of how a quantum computer might work surfaced with David Deutsch's theories. The ... at the end of the tunnel that quantum computers may one day become a reality," says Gilles Brassard of University of Montreal. Quantum Mechanics give an unexpected clarity in the description of the behavior of atoms, electrons, and photons on the microscopic levels. Although this information isn't applicable in everyday household uses it does certainly apply to every interaction of matter that we can see, the real benefits of this ... This quantum system must be able to program the equation into it, verify it's computation, and extract the results. Several possible systems have been looked at by researchers, one of which involves using electrons, atoms, or ions trapped inside of magnetic fields, intersecting lasers would then be used to excite the confined particles to the right wavelength and a second time to restore the particles to their ground state. ...
- 27: Semiconductors : The Silicon Chip
- ... electrical properties of semiconductor material. They learned they could change and control these properties by "doping" the semiconductor, or infusing it with selected elements, heated to a gaseous phase. When the semiconductor was also heated, atoms from the gases would seep into it and modify its pure, crystal structure by displacing some atoms. Because these dopant atoms had different amount of electrons than the semiconductor atoms, they formed conductive paths. If the dopant atoms had more electrons than the semiconductor atoms, the doped regions were called n-type to signify and ...
- 28: On J.j. Thomson
- ... electricity inside empty glass tubes. He was investigating a long-standing puzzle known as "cathode rays." His experiments prompted him to make a bold proposal: these mysterious rays are streams of particles much smaller than atoms, they are in fact minuscule pieces of atoms. He called these particles corpuscles, and suggested that they might make up all of the matter in atoms. It was startling to imagine a particle residing inside the atom -- most people thought that the atom was indivisible, the most fundamental unit of matter. Thomson's speculation was not unambiguously supported by his ...
- 29: John Dalton
- ... each gas exists and its independently and purely physically, rather than chemically. However his first published attracted little attention. Dalton's most important contribution to science, was his atomic theory that "matter is composed of atoms differing weights and combine in simple ratios by weight". In 1808 Dalton published a third book entitled A New System of Chemical Philosophy. In this book he listed the atomic weights of a number of ... Institution in London. In 1822 he was made a fellow of the Royal Society and was awarded the society's gold medal in 1826. Here are some laws of importance. First- matter is made of atoms. Second- atoms are indiscrutable, which means that in chemical reactions the atoms rearrange but they never break apart. Third- atoms of an element are identical. Fourth- Atom of different elements are different. Fifth-Say's compounds ...
- 30: Materialism vs Idealism
- ... he does not deny the existence of a god, his work is aimed at proving that the world is not guided or controlled by a divinity. Lucretius asserts that matter exists in the form of atoms, which move around the universe in an empty space. This empty space, or vacuity, allows for the movement of the atoms and without it everything would be one mass. He explains that matter and vacuity can not occupy the same space, "...where there is empty space, there matter is not...", and these two things make up the entire universe. These invisible particles come together to form material objects, you and I are made of the same atoms as a chair or a tree. When the tree dies or the chair is thrown into a fire the atoms do not burn up or die, but are dispersed back into the vacuity. The ...
Search results 21 - 30 of 278 matching essays
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