Pierre Janssen's Helium: A Genius In The US
Helium
Sophia bolg
Elementors
Pierre Janssen and Norman Lockyer discovered helium. Pierre Janssen was born on February 22, 1824, Paris, France and died on December 23, 1907. He became permanently lame after an incident from his childhood. He could not go to school because of that but did have to start working as a bank clerk due to financial problems. He graduated from the University of Paris in 1852 and in 1865 he became professor of physics at the École Speciale d’Architecture in Paris.While observing a solar eclipse in Guntur, India, on August 18, 1868, Janssen noted that the spectral lines in the solar prominences were so bright that they should be easily observable in daylight. The next day he used his spectroscope to study the solar prominences. That enabled many more such observations to be made than previously, when such phenomena had been observable only for the few minutes of the solar eclipses. During his observations he also noted a yellow spectral line near, but distinct from, the prominent lines of sodium. That line was from helium, which was not observed on Earth until 1895.
Helium was first found to exist on the Sun and was named using the Greek word for sun, helios. In 1868, French astronomer Pierre Janssen went to India to study a total solar eclipse. During the eclipse, he analyzed the wavelengths of light …show more content…
Deep inside a star, intense pressures cause hydrogen atoms to become helium atoms. This creates the energy, heat, and light that powers the stars and the sun. This is called nuclear fusion. Mostly helium will not combine with itself to create molecules but found as a single atom. Scientists believe that most of the helium in the universe was created at the formation of the universe. However, new helium is created in the center of stars and also as part of radioactive decay on Earth. Helium from radioactive decay can be found trapped underground in natural gas
Sophia bolg
Elementors
Pierre Janssen and Norman Lockyer discovered helium. Pierre Janssen was born on February 22, 1824, Paris, France and died on December 23, 1907. He became permanently lame after an incident from his childhood. He could not go to school because of that but did have to start working as a bank clerk due to financial problems. He graduated from the University of Paris in 1852 and in 1865 he became professor of physics at the École Speciale d’Architecture in Paris.While observing a solar eclipse in Guntur, India, on August 18, 1868, Janssen noted that the spectral lines in the solar prominences were so bright that they should be easily observable in daylight. The next day he used his spectroscope to study the solar prominences. That enabled many more such observations to be made than previously, when such phenomena had been observable only for the few minutes of the solar eclipses. During his observations he also noted a yellow spectral line near, but distinct from, the prominent lines of sodium. That line was from helium, which was not observed on Earth until 1895.
Helium was first found to exist on the Sun and was named using the Greek word for sun, helios. In 1868, French astronomer Pierre Janssen went to India to study a total solar eclipse. During the eclipse, he analyzed the wavelengths of light …show more content…
Deep inside a star, intense pressures cause hydrogen atoms to become helium atoms. This creates the energy, heat, and light that powers the stars and the sun. This is called nuclear fusion. Mostly helium will not combine with itself to create molecules but found as a single atom. Scientists believe that most of the helium in the universe was created at the formation of the universe. However, new helium is created in the center of stars and also as part of radioactive decay on Earth. Helium from radioactive decay can be found trapped underground in natural gas