This Guide covers Facts about Time, The Fourth Dimension And Time Travel for Beginners or those who are not science Students.
After much research on Time and Time Travel, this is a simplified version of what I know so far to get you started.
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The Three Dimensions
Three dimensions are used to specify where are object is in space or how it moves in space. The three dimensions are:
- Forward-Backwards
- Left-Right
- Up-Down
The Fourth Dimension
You may be wondering, what is the fourth dimension? Time is the 4th Dimension.
Unlike the three Dimensions, Time can move only forward and not backwards. Time is the only dimension that has a single direction.
Another important thing to note about time is that it is affected by gravity. Time is definitely be slower where gravity is strongest.
Philosophers & Scientists Idea of Time
Many scienctists and philosophers have given their own beliefs about Time; the fourth dimension. Let us see very few of them below:
Permenides: The Pre-Socratic Greek Philospher Permedies saw time as merley an illusion.
Illusion means a deceptive appearance or impression; a false idea or belief.
Heraclitus believed that the flow of Time is real and it is the very essence of reality.
Isaac Newton believed that Time was absolute and it moves at a consistent pace everywhere throughout the universe.
Albert Einstein: With Einstein, time became more flexible and relative in scope.
Space and Time Relationship
Space and Time and Simultaneous Phenomena just like mass and energy. This implies that space and time happen together and you can not separate them.
Space and Time forms the fabric of the universe which we refer to as space-time today. Therefore, we can’t talk or look inot space without looking back into Time.
John Titor From 2036
A man called John Titor started answering questions on the internet about time-travel. This happened in November 2000.
The man claimed that he is from 2036 and said their world was torn apart because of the war between the US and Russia.
According to him, only a few people survived the war. He came to retrieve some items that would help rebuild the society.
Possibility & Names For Time Travel
In theory, Time Travel might be possible; however, it is not possible in practice.
- Time Travel into the past is called Retrocognition
- Travelling to the Future is called Precognition
Travelling With The Speed of Light
In theory, if you travel with the speed of ligh or travel faster than the speed of light, the following will happen:
- If you travel close to the speed of light, Time Will Slow Down for You.
- If you travel faster than the speed of light, you can Go Back in Time.
A person travelling at 99% the speed of light would experience time slowed by roughly a factor of 7. When the person spends one year, those on earth will see it as 7 years.
If a person attains 99.9999% the speed of light, then I year would equal 70 years on earth. As it tends to 0.999999999999999 of speed of light (c), one year of travelling would seem 22,369,621 years.
If Your Travel At 99.5% Speed of Light
If 15 years old you could travel at 99.5% speed of light, then your friends who are 15 years when you travel will be 65 years old by the time you reach 20 years time travelling.
The Grandfather Paradox
You travel back to the past and kill your grandfather. Now, your father won’t be born and neither will you. So, if you are not even born, who killed your grandfather?
I hope you found this helpful? If you wish to know more, then visit astronomytrek.com for a detailed guide on Time & Time Travel.
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