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Tag Archives: Class
blog post 03
Nuclear fusion reactions power stars. In nuclear fusion, 2 atoms’ nuclei merge and form a heavier single nucleus. The leftover mass becomes energy. In stars like the Sun, this is generally the transformation of Hydrogen to Helium (proton-proton chain). Other, more massive stars, use the CNO cycle (uses more elements) to accomplish energy transformation. The […] Continue reading
Earth’s Atmosphere and Life
Earth’s atmosphere is conducive to life in a way other terrestrial worlds’ atmospheres are not. This is because of the greenhouse effect, which keeps Earth warm and allows water to exist in its liquid form. Other planets such as Mercury which do not have an atmosphere or the greenhouse effect are extremely hot during the […] Continue reading
The Sun’s Nuclear Fusion
The Sun has been producing a huge amount of energy for over 4 billion years through nuclear fusion. Nuclear fusion is the process by which the Sun converts mass to energy. Albert Einstein’s equation, E=mc^2, reveals that a little bit of mass has a huge amount of potential energy which indicates why the sun has […] Continue reading
Born from the Stars
It may be hard to believe, but in all technicality, everything in the solar system, including humans, are born from star dust. Let’s start at the beginning, at the big bang. The matter released from the big bang made up the first generation of stars, only containing the elements hydrogen and helium. Eventually, when the …
Posted in Class, SolarSystem
Tagged astro2110, blog4, Class, Solar System, solarsystem, spacedust
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blog post 02
NASA’s James Webb Telescope was launched on December 25, 2021. It is a collaborative effort between NASA (United States), The European Space Agency, and the Canadian Space Agency. This telescope has four main areas where its data will be used: considering the first light in the universe, early assembly of galaxies in the universe, birth […] Continue reading
Posted in Class, General, Historical, Observables, Science
Tagged astro2110, blog2, Class, General, Historical, James Webb Telescope, NASA, Observables, Science, telescope
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Historical Vanderbilt Astronomer
If you have spent much time in E. Bronson Ingram residential college on Vanderbilt’s campus, you may have noticed that part of the dorm is named after one Edward Emerson Barnard. As it turns out, Barnard was an astronomer who attended the university from 1883-1887. His research focused on observation and photography of stars and […] Continue reading
Posted in Class, Historical
Tagged astro2110, blog2, Class, Historical
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Light: Wavelength, Frequency, and Energy
A prism splits white light into a spectrum of colors ranging from red to violet. These colors correspond to different wavelengths, frequencies, and energy levels. Light with a longer wavelength has a lower frequency and lower energy level, and light with a shorter wavelength has a higher frequency and higher energy level. Violet light has […] Continue reading
Solstices and Equinoxes
The seasons change as Earth orbits the sun. Earth’s hemispheres receive different amounts of sunlight during each season because of the 23.5 degree tilt of Earth’s axis. When the Earth is at a point in its orbit that the northern hemisphere is tilted toward the sun, it is summer for the northern hemisphere. This is […] Continue reading
Starting Up
By me This picture is from when I visited my sister abroad over Thanksgiving Break. I am Quint Gfroerer, I’m from Atlanta, GA, and I am a junior majoring in neuroscience and minoring in astronomy. Continue reading