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Sir  Joseph John Thomson , (born December 18, 1856, Cheetham Hill, near Manchester, England—died August 30, 1940, Cambridge, Cambridgeshire), English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897.   Joseph John ( J. J. ) Thomson performed a series of experiments in 1897 designed to study the nature of electric discharge in a high-vacuum cathode-ray tube, an area being investigated by many scientists at the time. In 1897, he showed that cathode rays were composed of very small negatively charged particles. These particles later were named electrons. The apparatus of his experiment is called the cathode-ray tube (CRT). J. J.   J. J. Thomson   took science to new heights with his 1897 discovery of the electron – the first subatomic particle. This discovery upended the prevailing theory that the atom was the smallest fundamental unit. He also found the first evidence that stable eleme...

Sir  Joseph John Thomson , (born December 18, 1856, Cheetham Hill, near Manchester, England—died August 30, 1940, Cambridge, Cambridgeshire), English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897.   Joseph John ( J. J. ) Thomson performed a series of experiments in 1897 designed to study the nature of electric discharge in a high-vacuum cathode-ray tube, an area being investigated by many scientists at the time. In 1897, he showed that cathode rays were composed of very small negatively charged particles. These particles later were named electrons. The apparatus of his experiment is called the cathode-ray tube (CRT). J. J.   J. J. Thomson   took science to new heights with his 1897 discovery of the electron – the first subatomic particle. This discovery upended the prevailing theory that the atom was the smallest fundamental unit. He also found the first evidence that stable element...

knowledge want: GREAT SCIENTISTS OF WORLD - JOHANNES KEPLER :   Johannes Kepler , (born December 27, 1571, Weil der Stadt, Württemberg [Germany]—died November 15, 1630, Regensburg), German astronomer ...

  Johannes Kepler , (born December 27, 1571, Weil der Stadt, Württemberg [Germany]—died November 15, 1630, Regensburg), German astronomer who discovered three major laws of planetary motion, conventionally designated as follows: Three , Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3 ) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its orbit . Kepler 's Laws  have been used to predict the orbits of many objects such as asteroids and comets , and were pivotal in the discovery of dark matter in the Milky Way.   Violations of Kepler's laws have been used to explore more sophisticated models of gravity, such as general relativity. Kepler discovered that planets moved faster when they were closer to the Sun.   Kepler played a key role in the scientific revolut...

Internet makes it easier for scammers, con artists, and other online miscreants to carry out their virtual crimes, impacting our real-life finances, security, and peace of mind. Online scams are constantly evolving, but here are the most common ones today. If you discover you need to remove spyware, be sure to use the best free spyware removal tools. . Nigerian 419 Scams.   Nigerian 419 scams (aka Advanced Fee Fraud) date back to the days when fax machines and snail mail were the primary business communication tools. Today, email is the preferred method of these scammers and there are more Nigerian 419 Advanced Fee Fraud scams and victims than ever before. Phishing Scams  Phishing emails try to trick the intended victim into visiting a fraudulent website disguised to look like a valid eCommerce or banking site. Victims think they are logging into their real account, but instead, everything they enter on the f...

Internet makes it easier for scammers, con artists, and other online miscreants to carry out their virtual crimes, impacting our real-life finances, security, and peace of mind. Online scams are constantly evolving, but here are the most common ones today. If you discover you need to remove spyware, be sure to use the best free spyware removal tools. . Nigerian 419 Scams.   Nigerian 419 scams (aka Advanced Fee Fraud) date back to the days when fax machines and snail mail were the primary business communication tools. Today, email is the preferred method of these scammers and there are more Nigerian 419 Advanced Fee Fraud scams and victims than ever before. Phishing Scams  Phishing emails try to trick the intended victim into visiting a fraudulent website disguised to look like a valid eCommerce or banking site. Victims think they are logging into their real account, but instead, everything they enter on the f...