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Daily Archives: January 28, 2013
SkyView?
SkyView gives you the entire sky at your palm… and for only $1.99! By pointing your Iphone camera anywhere in the sky, SkyView will show you constellations, stars, planets, and satellites that you can tap and zoom in on to learn more. It provides you with a search interface that will tell you exactly where … Continue reading » Continue reading
Sunsets
Sunsets baffle me. My favorite part about living in Virginia Beach, VA is that I live on the bay and walk in the opposite direction not even half a mile and land on the beach. I’m lucky enough to get incredible photo shots of the sun rising in the East over the ocean and setting … Continue reading » Continue reading
Precession Is All But Precision
The earth has an axis of tilt of about 23.5 degrees, and precession, a gradual wobble that alters the orientation of Earth’s axis, does not change the amount of axis […] Continue reading
Posted in Class
Tagged astro201, blog2, precession, Solar System: Sun
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The Cosmic Calendar
The idea behind the cosmic calendar is to put the timeline of the entire universe into the perspective of one calendar year. Below is a picture of the calendar. This calendar really puts into reality how short humans have really been around. It takes until 11:54 on December 31 for modern humans to appear on […] Continue reading
The Universe is More Observable Than What Meets The Eye
In class we talked about how the observable universe is 13.7 billion light years. The reason for this is because the universe is 13.7 billion years old so we therefore […] Continue reading
Posted in Class, Observables, Universe
Tagged astro201, blog1, ObservableUniverse
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The 13th Sign of the Zodiac
The zodiac system was first developed roughly 2,500 years ago in ancient Babylonia. Unfortunately, the astronomers who first developed the system did not know about the precession of the Earth’s axial tilt. Even after this precession was known, W… Continue reading
Posted in General, Observables
Tagged astro201, Astrology, Zodiac
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The speed of light in everyday terms
The idea of light years is pretty mind blowing. Click on the above picture to watch a cool video explaining how we measure distance with time in everyday life. The difference between saying I live 10 hours from Nashville and … Continue reading → Continue reading
Posted in Class
Tagged astro201, blog1, speedoflight
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Twinkle Twinkle Little Planet
Sounds wrong because the extra syllable blemishes the aesthetic quality of the symmetry of the rest of the poem. Planets do twinkle, in fact. Its just that we do not notice. And it is the hallmark of a truly good (and bored) scientist to correct a misconception, even if it is only superhuman vision that […] Continue reading
Once in a Blue Moon?
While studying lunar phases for tomorrow’s test, I wondered what the common phrase “Blue Moon” meant. According to Wikipedia, Blue Moon is a term used to describe the second full moon in one month. A two-full-moon month occurs approximately once every 3 years, and the it can only occur is because most months (with the […] Continue reading