# Tag Archives: speed of light

## Considerations of the Grandfather Paradox with the Speed of Light

The Grandfather Paradox The Grandfather Paradox is a concept in theories about time travel. More specifically, the paradox introduces the dilemma that if you were to travel back in time to a point before your grandfather met your grandmother, and you happened to prevent them from meeting (i.e. killing your grandfather), you would, by extension, […] Continue reading

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## Can We Travel Faster Than the Speed of Light (like in Star Wars)?

One interesting question that has crossed many minds is, “Can humans travel at the speed of light?” Movies like Star Wars and Star Trek seem to believe that we can travel at, or even exceed, the speed of light (300,000,000 m/s) as they depict spaceships capable of jumping into hyperspace. In order to assess this […] Continue reading

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## The Speed of Light (or so we think)

To measure the speed of anything, the simplest thing to do is to measure how long it takes to travel a known distance. By dividing the distance over the time, we obtain the speed: Speed = Distance / Time However, measuring the speed of light is not so easy. Colloquially known as about 3 x […] Continue reading

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## Blog 1: Special Theory of Relativity

Before discussion the Special Theory of Relativity. Two observations must be understood; one that the speed of light is constant and two one cannot distinguish a state of rest from a state of constant velocity. The idea that the speed of light is constant has never been truly proven, but can be verified with experimentation. […] Continue reading

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## Light from the Past

Although light travels through space at the fastest speed physically possible (no object with mass can reach the speed of … More Continue reading

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## The Speed of Light

The speed of light is very, very fast, almost incomprehensibly fast. It is unusual to think that whenever we see an object, light is bouncing off that object and hitting our eye. We perceive this to be instantaneous, but it actually takes some infinitesimal amount of time for light to travel from nearby objects to […] Continue reading

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## The Speed of Light

The speed of light is very, very fast, almost incomprehensibly fast. It is unusual to think that whenever we see an object, light is bouncing off that object and hitting our eye. We perceive this to be instantaneous, but it actually takes some infinitesimal amount of time for light to travel from nearby objects to […] Continue reading

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## Consequences of breaking the speed limit

The effects of aberration and the Doppler Effect. Source: Comic Vine During one of the first class sessions, we were given a minute or so to write down what would happen if the speed of light was only 100 mph. I’d never really thought about this before, so I struggled to get anything more than “The… More Consequences of breaking the speed limit Continue reading

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## So, is a light-year some kind of diet plan or whatever? The speed of light and space

To answer the titular question in a word: no. So then, what exactly is a light-year and what does it have to do with the speed of light? A light-year is the amount of distance that a given light wave (light, radio waves, X-rays) travels in a year. Because the speed of light is approximately 300,000 meters per second, […] Continue reading

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