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Not too long ago most older televisions and monitors had cathode ray tube screens. Essentially a cathode ray tube works by firing electrons at a phosphor surface with a huge magnet. Overall the electrons fired out to make the picture move at up to 30% the speed of light. Relativistic effects are noticeable, and when manufacturers shaped the magnets, they had to take those effects into account.

Emspak, Jesse. “8 Ways You Can See Einstein's Theory of Relativity in Real Life.” LiveScience, Purch, 14 Mar. 2017, www.livescience.com/58245-theory-of-relativity-in-real-life.html.

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Examples of Time Dilation in the Modern World

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Examples of Time Dilation in the Modern World

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You may be surprised but Time Dilation affects your GPS navigation system in your car, in your phone, and on your computer. Satellites obviously aren't going the speed of light, but they are still moving really fast (6,000 mph). So the satellites have to take relativistic effects into account to get that pinpoint accuracy, and so they use clocks that are accurate to a few billionths of a second. The satellites are also sending signals to ground stations on Earth and there's a relativistic time dilation that tacks on about 4 microseconds each day, add in gravity, it adds up to 7 microseconds.

The difference is very real, if no relativistic effects were accounted for, a GPS unit that tells you its a half mile to the next gas station would be 5 miles off after only one day. Time Dilation can affect some of the smallest things you wouldn't even think would be affected at all.

Emspak, Jesse. “8 Ways You Can See Einstein's Theory of Relativity in Real Life.” LiveScience, Purch, 14 Mar. 2017, www.livescience.com/58245-theory-of-relativity-in-real-life.html.

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Einstein's work on relativity and gravity has changed how people view and talk about this subject forever, and without his work, we wouldn't be where we are today. His "Special Theory of Relativity" was published in 1905, and he published his "General Theory of Relativity" in 1916 and it has changed the world forever. Ever since Albert Einstein published his theories our understanding of time has changed dramatically, and the traditional Newtonian idea of absolute time and space has been changed by the notion of time as one dimension of space-time in special relativity.

“Relativistic Time.” Exactly What Is Time?, www.exactlywhatistime.com/physics-of-time/relativistic-time/.

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Einstein's "Time Dilation" prediction verified.

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Einstein's "Time Dilation" prediction verified.

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Experiments at a particle accelerator have confirmed the "time dilation" effect predicted by Albert Einstein's special theory of relativity. Physicists have verified a key prediction of Albert Einstein's special theory with unprecedented accuracy. Experiments at a particle accelerator in Germany confirm that time moves slower for a moving clock than for a stationary one. This experiment was done on September 22nd, 2014. This essentially means Time Travel is possible at very high speeds, moving forward only, and aging very slowly once Time Dilation takes it affects.

Witze, Alexandra. “Einstein's ‘Time Dilation’ Prediction Verified.” Scientific American, 22 Sept. 2014,www.scientificamerican.com/article/einsteins-time-dilation-prediction-verified/.

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Well for starters, time travel and being able to age very slowly. But realistically it is just a matter of perspective. You'd only actually experience Time Dilation if you were going even remotely close to the speed of light. Otherwise, the only type of dilation would be so minuscule you wouldn't even know it happened if it did at all. This was more testing the scientific bounds of reality, and what we know as a society. This is bigger than us, and eventually this concept of space and time will come into practice once technology permits.

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What are the consequences of Time Dilation?

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What are the consequences of Time Dilation?

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One of the stranger consequences of Time Dilation is the so-called "twin paradox". In this "paradox" one identical twin is sent into space, while her/his other identical twin is on earth. The identical twin in space is travelling at very high speeds around Earth in a rocket. Because this twin is moving at very high speeds all the clocks on the rocket, and on the twin, slow down in accordance with the principle that "moving clocks run slow". When the twin returns he/she will have aged only a little compared to the Earth-bound twin. This is essentially time travel in today's modern day society, but only in the sense of society moving forward, not backward.

E=Mc^2 - Radioactive Decay Explained with Worked Examples, www.emc2-explained.info/Time-Dilation/#.W-YmDZNKiUk.

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A lot of people ask "what would happen if you went faster than the speed of light? Like 110%?" It's sometimes mentioned that time would simply run backward, and as cool as that'd be it isn't true according to Special Relativity. The universe has a speed limit of just under the speed of light (the speed of light is around 186,300 miles per second), and it's quite clever the way it works.

So, as we go faster our mass (measured by an external observer) increases in proportion to our speed. Our mass seems to increase roughly at the same rate time slows down. So as we know from everyday experience that the heavier an object is the more energy is needed to move it.

E=Mc^2 - Radioactive Decay Explained with Worked Examples, www.emc2-explained.info/Time-Dilation/#.W-YmDZNKiUk.

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Time Dilation according to the theory of relativity is the difference in the elapsed time measured by two people, either due to velocity change relative to each other or by being differently situated relative to a nearby gravitational field. Time Dilation in simple terms is essentially time travel at very high speeds and only forward in time.

Below is the equation for Time Dilation, so you can calculate how time changes at the speed of light, and how time is completely relative.

E=Mc^2 - Radioactive Decay Explained with Worked Examples, www.emc2-explained.info/Time-Dilation/#.W-YmDZNKiUk.