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Category Archives: Science
The Beauty of Science and the Firewall Paradox
Image from this site. For more information on the conventional view of black holes, read the hyperlinked article. “Einstein was wrong.” Of course he wasn’t wrong about everything, and to many it may seem like he was only wrong over a minor point. And to most, like myself, it may seem obvious to conclude that … Continue reading The Beauty of Science and the Firewall Paradox →
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Gravitation and the theory of everything
Over the last several class periods, we have talked a lot about the force of gravitation. Incidentally, gravitation is considered one of the four fundamental forces of nature, along with weak force, strong force, and electromagnetic force. Interestingly, though, gravitation is the only one of these that is explained by a separate theory—the general theory…
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Posted in Class, Physics, Science, Universe
Tagged astro201, blog3, gravitation, String Theory
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Where Can You See Stars in the 4th Largest City?
In the heart of the museum district in Houston, Texas, there is the Houston Museum of Natural Science. Besides a football field size paleontology hall, IMAX screen and butterfly center, HMNS hosts the Burke Baker Planetarium. The planetarium also is used to train astronauts to help them be able to identify stars. In addition to […]
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Posted in Observables, Science, Stars
Tagged astro201, blog4, burke baker planetarium, earth, george observatory, hmns, technology
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The Highest Tides in the Bay of Fundy
Tides are created by the Moon’s gravitational pull on the Earth. While the Sun also pulls on the Earth, it is so far away that the tides are not as affected by the Sun as they are by the Moon. The tidal force is created by the difference in gravitational pull on each side of […]
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Newton – Creativity in Science Exemplified
Science is more than mere observations and compilations of facts. In fact, many have argued that it is quite creative field, and Isaac Newton’s history can testify to that. Newton’s realization that the same forces that pulled apples to the ground were in fact the same forces that held the Moon in Earth’s orbit and … Continue reading Newton – Creativity in Science Exemplified →
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Historical Astronomers in Context: Isaac Newton
Isaac Newton (December 25, 1642 – March 20, 1727) spent some time working on gravitation and how it affects the orbits of planets. He eventually published the Principia Mathematica, which introduced Newton’s law of universal gravitation, i.e. In September 1666, when Newton was 23 and attending Trinity College, Cambridge (in England), the Great Fire of London…
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Balancing eggs on the spring equinox
It is a popular myth that the spring equinox is the one day of the year that raw eggs can be perfectly balanced on end. When I was in elementary school, entire classes at my school would go outside with a bunch of eggs and try to balance them in a row. More often than…
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Posted in Class, Physics, Science
Tagged astro201, balancing eggs, blog2, spring equinox
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Different speeds of light
Although we often refer to “the speed of light” as a singular value (c = 299,792,458 m/s), the truth is that when we see light, it is actually moving slower than this speed. This is because the light we see is not moving in a vacuum, but through our atmosphere instead. Light moves at different speeds…
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Solstices and Equinoxes
Dividing our calendar into four segments, the equinoxes and solstices detail length of daylight hours and how the sun interacts with Earth. The solstices, or days by which the summer and winter are defined by, represent the longest and shortest days in our calendar. June 21, or the summer solstice (in the northern hemisphere), is…
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Potential to Shed New Light on Our Cosmic Calendar
Interplanetary Dust Particles Interplanetary dust is dust that been shorn away from asteroids, comets, planets, and other leftover debris from …