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Category Archives: Light
How do radio waves differ from visible light
Radio waves actually travel at the speed of light in vacuum, which is about 300,000,000 meters per second. It is fast enough for anyone on Earth to contact others on Earth in less a second. Radio waves are electromagnetic waves, so is light. The differences between light and radio waves are their frequencies and wavelengths. Wavelengths … Continue reading How do radio waves differ from visible light → Continue reading
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Tagged astro2110, blog2, Radio Waves
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How do radio waves differ from visible light
Radio waves actually travel at the speed of light in vacuum, which is about 300,000,000 meters per second. It is fast enough for anyone on Earth to contact others on Earth in less a second. Radio waves are electromagnetic waves, so is light. The differences between light and radio waves are their frequencies and wavelengths. Wavelengths … Continue reading How do radio waves differ from visible light → Continue reading
Posted in Light
Tagged astro2110, blog2, Radio Waves
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All the Light We Cannot See
Could I really claim to be interested in astronomy whatsoever if I didn’t express my overwhelming fascination with dark matter? Seriously though, I get the feeling that most people without a solid background in astronomy don’t grasp how much of a real phenomenon dark matter is. The name itself sounds like something made up from […] Continue reading
Posted in Light
Tagged astro2110, blog3, darkmatter, gravity, Uncategorized
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The Largest Telescope in the World
Wikipedia Commons In order to allow for astronomers to observe far into space, there are numerous gigantic telescopes laid out globally. None larger than the Gran Telescopio Canarias, located on the island of La Palma in the Spanish Canary Islands. As an infra-red telescope, the telescope seeks to explore questions such as the mystique surrounding […] Continue reading
Posted in Instruments, Light, Observables
Tagged astro2110, blog2, technology, telescopes
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Kessel Run in Twelve Parsecs
The speed of light is one of the few constants in our universe that we consistently look to when it comes to space. It is an astronomical measurement that we only dream of achieving. Seeing the Millennium Falcon shift into overdrive or the Enterprise slip into hyperdrive are only distant fantasies for us Earth-bound creatures. … Continue reading Kessel Run in Twelve Parsecs → Continue reading
Posted in Class, Light, Space Travel
Tagged astro2110, blog1, light-speed, relativity
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Putting the speed of light into perspective
The theory of special relativity tells us that there is an absolute speed limit in the universe, that being the speed of light. At a speed of about 300,000 km/s, light takes only one second to travel to the Moon from Earth and eight minutes to travel to the Sun from Earth. This speed is … Continue reading “Putting the speed of light into perspective” Continue reading
Posted in Light, Physics, Space Travel
Tagged Andromeda, astro2110, blog1, relativity, speedoflight
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2017 Solar Eclipse
My junior year at Vanderbilt University began in the most spectacular way – witnessing a total solar eclipse through a skylight within Nashville airport, immediately upon arrival. Surrounded by a gathering of fellow traveller’s experiencing this magical moment, the moment in which the Sun was reduced to a radiant ring wrapped around the black outline […] Continue reading
Posted in Light, Observables
Tagged astro2110, blog1, eclipse, Solar Eclipse, Solar System
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Some facts about the speed of light
The speed of light is 299,792,458 meters per second (186,282 miles per second), but this is not always the case. The speed of light, which is actually the highest speed that light can reach, has to be in a vacuum. In other cases, light actually slows down as it passes through different media. For instance, … Continue reading Some facts about the speed of light → Continue reading
First Super-Earth Exoplanet with Atmosphere Discovered
Earlier this month, scientists discovered the existence of an atmosphere on an exoplanet much like Earth, making this the first Earth-like exoplanet with atmosphere to have been detected aside from earth itself. The planet is named GJ 1132b, located in the constellation Vela as a planet of the low-mass star GJ 1132. The planet is […]
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Posted in Exoplanets, Instruments, Light
Tagged astro2110, Atmosphere, blog7, exoplanet, Observation, Uncategorized
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Blog 3 – Electromagnetic Spectrum
For this blog I thought I would further look into the electromagnetic spectrum. As in the picture below, we can see that the light that humans see is only a small portion of the full spectrum of light, collectively known as the electromagnetic spectrum. Light itself is technically radiation, but only certain types of light […]
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