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Search results 2321 - 2330 of 3467 matching essays
- 2321: Pluto
- ... kilometers (720 miles).Discovered in nineteen seventy eight this natural satellite is nineteen thousand kilometers (12000 miles) from Pluto. One Pluto day is equal to that of six point four days here on Earth.Its revolution period or in laymen's term one Pluto year is two hundred forty seven point seven Earth years.The eccentricity of its orbit is measured at point two seven.The inclination of Plutos orbit is ...
- 2322: Uranium
- ... 5 History Uranium was discovered in 1789 in pitchblende by a German chemist Martin Heinrich Klaproth who named it after the planet Uranus. The radioactive properties of uranium were first showed in 1896 when a French physicist Antoine Henri Becquerel produced an image on a photographic plate covered with a light-absorbing substance.
- 2323: Nicolaus Copernicus
- ... of our solar system. However, it was 400 years before it was published. After leaving his uncle, he wrote a treatise on money, and began the work for which he is most famous, On the Revolution of the Celestial Spheres, which took him almost 15 years to write. It is ironic that what he devoted a good part of his life would not be published until he was on his deathbed ...
- 2324: BETA PICTORIS: PLANETS? LIFE? OR WHAT?
- ... solar system, revolve in a disk-shaped distribution. This idea, about the disk-shaped nebula that was formed around the early sun, came to be known as the nebula hypothesis (1). Then, in 1796, a French mathematician named Laplace, proposed that the rotating disk continued to cool and contract, forming planetary bodies (1). Also, when investigating the evolution of stars, it was proposed that a star forms as a central condensation ...
- 2325: The Atomic Bomb and its Effects on Post-World War II
- ... shaped and guided world politics, relations and culture. The entire history behind the bomb itself is rooted in Twentieth Century physics. At the time of the bombing the science of physics had been undergoing a revolution for the past thirty-odd years. Scientists now had a clear picture of what the atomic world was like. They new the structure and particle makeup of atoms, as well as how they behaved. During ...
- 2326: Inventions of the Early 19th Century
- ... in disbelief because it didn't melt as "gum elastic" always had in the past. Instead, it solidified and "[the rubber] charred like leather". Before Goodyear's discovery, rubber's bad qualities permitted few uses. French savants had studied the new substance for waterproof qualities; someone had found that the gray gum rubbed out pencil marks on paper, and thus the word "rubber" was born. By 1839 British manufacturers had learned ...
- 2327: Rutherford Hayes
- ... for the protection and welfare of the colored people, the Thirteenth, fourteenth, and fifteenth Amendments shall be sacredly observed and faithfully enforced according to their intent and meaning. Second, we all see that the tremendous revolution which has passed over the southern people has left them impoverished and prostrate, and we all are deeply solicitous to do what may constitutionally be done to make them again prosperous and happy. They need ...
- 2328: Wired Hands - A Brief Look at Robotics
- ... instructions - the "software - that tell robots what to do". Software has indeed become increasingly sophisticated year by year. The Canadian weather service now employs a program called METEO which translates weather reports from English to French. There are computer programs that diagnose medical ailments and locate valuable ore deposits. Still other computer programs play and win at chess, checkers and go. As a results, robots are undoubtedly getting "smarter". The Diffracto ...
- 2329: Virtual Reality - What it is and How it Works
- ... see what your kitchen will look like before you actually refurnish could help you save from costly mistakes in the future. The entertainment industry stands to gain a lot from VR. With the video game revolution of bigger and better games coming out all the time, this could be the biggest breakthrough ever. It would be fantastic to have sword fights which actually feel real. As well, virtual movies (also called ...
- 2330: James Watson's The Double Helix: A Review
- ... was discovered but he also let us in on the developments of parts of his personal life. He would speak of how he tried to have dinners at a school that was teaching young, pretty French girls English. He also spoke much of his relationship with Crick and Crick's wife, Odile. He made the book come alive and science seem more fun, breaking the stereotype of the scientist. I especially ...
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