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Search results 261 - 270 of 278 matching essays
- 261: Chemistry Solution
- ... homogenous mixture of two or more substances in a single physical state. Solutions are all around you. All solutions share several important properties. The particles in a solution are very small. In fact, they are atoms, molecules, or ions, which is why you cannot see them. The particles in a solution are evenly disturbed, or intermingled informally on a molecular level. A small sample of one part of a solution. The ...
- 262: Solutions Around You
- ... homogenous mixture of two or more substances in a single physical state. Solutions are all around you. All solutions share several important properties. The particles in a solution are very small. In fact, they are atoms, molecules, or ions, which is why you cannot see them. The particles in a solution are evenly disturbed, or intermingled informally on a molecular level. A small sample of one part of a solution. The ...
- 263: Fusion: Our Future's Energy?
- ... sun! But are there any problems with this hopeful energy source? What is Nuclear Fusion? To understand fusion, it is a good idea to know about fission. This is the splitting of the nuclei of atoms into two or more smaller nuclei by bombarding them with neutrons of low energy. It was discovered in the 1930's in an attempt to make transuranium elements (elements with atomic numbers greater than Uranium ...
- 264: The Making Of The Cat
- ... BEGINNING, about 4.6 billion years ago (give or take a few years), a small ball of rock, water and gas had come to be and immedi- ately set about the process of combining its atoms into more and more complex arrangements. Thus began that most wondrous story, the evolu- tion of life on Earth. For the first 2.1 billion years of the Earth's existence, the Archeo- zoic Era ...
- 265: Atomic Bomb
- ... that was called The Manhattan Project. The Beginnings of the Manhattan Project In 1939, after German dictator Adolf Hitler invaded Poland, German scientists shocked the scientific world when they announced that they had split uranium atoms by man-made means for the first time. Upon hearing this news, a nuclear physicist, Leo Szilard, was convinced that a chain reaction of this process could be used as a weapon to release an ...
- 266: Lasers
- ... single frequency but also coherent, with the light waves all moving along in unison. Lasers consist of several components. A few of the many things that the so-called active medium might consist of are, atoms of a gas, molecules in a liquid, and ions in a crystal. Another component consists of some method of introducing energy into the active medium, such as a flash lamp for example. Another component is ...
- 267: Telekinesis
- ... focused. 5. With eyes closed--slowly rub your fingers tips over the surface of the object. 6. Feel--don't think about it--feel what the surface feels like. Get into the flow of molecules, atoms, energy. 7. This may take a few attempts. You will begin to actual "feel" the energy. 8. At that very moment when you feel it--you and the object as a blend of energy--just ...
- 268: The Superstring Theory
- ... Those in the field that summarily dismiss theoretical physics entirely because of the lack of data are denying the heritage of physics and science as a whole. When Democritus envisioned matter to be constituted by atoms, that was a leap of faith. In the same vantage, the overall serendipitous nature of man's journey to prove that he thinks i! s truly a leap of faith. What does it matter if ...
- 269: Water and Its Importance
- ... these things combined help to sustain life and keep it constantly evolving. In the next couple of pages, we are going to go into detail of how it does this. Water consists of two hydrogen atoms that are joined to one oxygen atom by covalent bonds. These bonds are polar bonds. The partial charges on different parts of water molecules produce weak attractive forces called hydrogen bonds. The hydrogen bonds are ...
- 270: Nuclear Fusion
- ... Labs, Source 1) The density of fuel ions must be sufficiently large for fusion reactions to take place at the required rate. The fusion power generated is reduced if the fuel is diluted by impurity atoms released from surrounding material surfaces or by the accumulation of Helium "ash" from the fusion reaction. As fuel ions are burnt in the fusion process they must be replaced by new fuel and the Helium ...
Search results 261 - 270 of 278 matching essays
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