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Daily Archives: February 6, 2021
Our Entire Universe in One Year
Imagine if we were able to fit the history of our entire universe—from the Big Bang all the way up to today—into a single calendar year. That would be crazy right? Well look no further because that’s exactly what the Cosmic Calendar is. Created and popularized by Carl Sagan, the cosmic calendar compresses 14 billionContinue reading “Our Entire Universe in One Year” Continue reading
Posted in Class, Historical, Universe
Tagged astro2110, blog1, cosmiccalendar, history, Time
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The Far Side of the Moon
I’m no professional astronomer. No matter where I am in the world, when I look up at the night sky I see the same thing. I’ve rarely ever been able to see recognizable patterns in the stars, let alone identify specific ones, like Polaris. However, in every night sky, there is always a celestial bodyContinue reading “The Far Side of the Moon” Continue reading
Eclipses and Shadow Snakes
Back in 2017, I was lucky enough to watch the Solar Eclipse here in Nashville! It was such a cool experience, and I can’t wait until I can see one again! One thing that stood out to me was weird shadows on the ground just before and after the Sun was totally eclipsed. I rememberContinue reading “Eclipses and Shadow Snakes” Continue reading
Posted in Light, Observables, Sun
Tagged astro2110, blog1
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The Cosmic Calendar
The Cosmic Calendar was created to help visualize the chronology of the universe. It takes the 13.8 billion year history of the universe and scales it to 1 year. I think it is a great concept because it really helps to put in perspective how long the universe has been around. To think that ChristContinue reading “The Cosmic Calendar” Continue reading
Size of the Universe
In our day to day lives, we feel significant. The trivial highs and lows we experience daily feel important and quite relevant. But in the grand scheme of things, how truly inconsequential are we, not only as individuals but our whole planet. In order to understand this, we must try to grasp how vast our universe is. Also withContinue reading “Size of the Universe” Continue reading
The Milky Way in Other Cultures
The Milky Way Galaxy was named not from the candy bar, but from the intriguing way it appears, looking like a river of spilled milk on the dark background of space. Where this name came from however is equally as intriguing, and, many cultures have various names for the Milky Way. But, each one hasContinue reading “The Milky Way in Other Cultures” Continue reading
Posted in Class, Galaxies, Historical
Tagged astro2110, blog1
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Muons and Time Dilation
In my opinion, one of the coolest parts of astronomy is relativity, the theory describing the warping of spacetime. If you’ve ever seen Interstellar, you’ve been exposed to one part of the theory: time dilation. In short, time dilation is a phenomenon that causes time to pass more slowly in one place than another (relativeContinue reading “Muons and Time Dilation” Continue reading
SkyView
The app SkyView is a great way to apply your growing knowledge about astronomy to actual space! While it may be easy to look at a star map and tell which stars are which it’s much harder to do that when you are actually looking up at them from Earth. The app SkyView allows youContinue reading “SkyView” Continue reading
Eclipses and History
A seemingly everlasting problem historians run in to are exact dates. Since each ancient civilization had their own calendar and their own way of measuring time, it’s a challenge for historians to connect the dots between civilizations and produce an accurate timeline of human history on the Earth. However, historians have discovered the common denominatorContinue reading “Eclipses and History” Continue reading
The Discovery of the Speed of Light
While Aristotle believed that light could travel instantaneously, the first experimental attempt to measure the speed of light came from Galileo Galilei in 1667. He placed two people with covered lights on the top of hills that were about a mile apart. The first person was instructed to uncover his light, and when the second … Continue reading The Discovery of the Speed of Light → Continue reading
Posted in Historical, Light, Observables, Physics
Tagged astro2110, blog1, galileo, speedoflight
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