Post by John Marston on Nov 28, 2021 14:14:55 GMT
Nov 28, 2021 12:17:23 GMT @ronin said:
well my knowledge about physics playing the main role here is too limited....the quote is not my written. someone else
This means you can timetravel forward - but not backward.
Wow, and I haddn't a strong gravitional field in remember
Thank you both for this interresting posts.
THIS IS A CLICKBAIT!!!
Yes, this is a clickbait because instead of describing how to time travel, I'll describe the "Physics" for "potential time travel recipe" 
You're welcome to read this thread in case you want to, but aren't falling asleep. (Hope the mods don't take it down)
Coming to the real thing, you can time travel/time basically travels slower when -
1. It is in an intense gravitational field
2. When it is moving
You're welcome to read this thread in case you want to, but aren't falling asleep. (Hope the mods don't take it down)Coming to the real thing, you can time travel/time basically travels slower when -
1. It is in an intense gravitational field
2. When it is moving
1. Under intense gravitational field
Why, does time travel slowly under intense gravitational field? This is because of the warping of spacetime. Spacetime is basically a graph with 4 coordinates - Length, Breadth, Height and Time, basically a "4D" graph. So what happens is that every object, regardless of it's mass, warps the space time around it. By warping, I mean it sinks a bit "inside" into the graph, something like this -
Why, does time travel slowly under intense gravitational field? This is because of the warping of spacetime. Spacetime is basically a graph with 4 coordinates - Length, Breadth, Height and Time, basically a "4D" graph. So what happens is that every object, regardless of it's mass, warps the space time around it. By warping, I mean it sinks a bit "inside" into the graph, something like this -
Now assume time as a body which is "travelling". It's approaching the earth and passes through it's space time. Now, if we take two paths, one curved and one straight, but both looking the same length, then we can easily say that the curved path is more longer than the straight path, as shown below -
Here, if CD is stretched to a straight line, then obviously it is longer than AB. Similar is the case here. When time travels around these bent lines in the graph (Like CD), it travels more distance and hence, it goes slower than if it had taken a straight path (Like AB).
So yeah, time does pass slower around object which bends space time. Some of them bends them a lot. The heavier they weigh, the more they sink. So that technically means, even the Earth and even you are bending space time! But it's relatively insignificant as compared to that the Earth, and the Earth's is relatively insignificant as compared to say, a black hole, which warps Space time infinitely
BING BING BING BONUS TIME!!!
I quote myself:Look, I don't know how true is this, but according to this logic, then gravity is a force at all! I mean since an object "sinks" into the graph and creates a "depression" due to it's own weight, then all objects are attracted to the bigger object just because it creates a depression in space time!
To imagine this, consider a tightly stretched elastic and a rock in the middle of the elastic. Throw a small pebble and you can see that it rotates a lot of times and ultimately, it crashes into the rock. Similarly, we can probably say that objects are attracted towards each other not by gravity, but rather because of a "Depression" in space time!
This video will help you better understand what I mean -
To imagine this, consider a tightly stretched elastic and a rock in the middle of the elastic. Throw a small pebble and you can see that it rotates a lot of times and ultimately, it crashes into the rock. Similarly, we can probably say that objects are attracted towards each other not by gravity, but rather because of a "Depression" in space time!
This video will help you better understand what I mean -
2. When an object is moving
Well, according to this theory, the faster you travel, the slower you experience time. Scientists have done some experiments to show that this is true. For example, there was an experiment that used two clocks set to the exact same time. One clock stayed on Earth, while the other flew in an airplane (going in the same direction Earth rotates).
After the airplane flew around the world, scientists compared the two clocks. The clock on the fast-moving airplane was slightly behind the clock on the ground. So, the clock on the airplane was traveling slightly slower in time than 1 second per second. For example, we use GPS satellites to help us figure out how to get to new places. NASA scientists also use a high-accuracy version of GPS to keep track of where satellites are in space.
GPS satellites orbit around Earth very quickly at about 8,700 miles (14,000 kilometers) per hour. This slows down GPS satellite clocks by a small fraction of a second (similar to the airplane example above). However, the satellites are also orbiting Earth about 12,550 miles (20,200 km) above the surface. This actually speeds up GPS satellite clocks by a slighter larger fraction of a second.
Here's how: Einstein's theory also says that gravity curves space and time, causing the passage of time to slow down. High up where the satellites orbit, Earth's gravity is much weaker. This causes the clocks on GPS satellites to run faster than clocks on the ground.
The combined result is that the clocks on GPS satellites experience time at a rate slightly faster than 1 second per second. Luckily, scientists can use math to correct these differences in time.
Credits - spaceplace.nasa.gov/time-travel/en/
Extra info by 𝘛𝘳𝘰𝘵𝘴𝘬𝘺 -
So time travel was not discovered by Einstein, it was invented by John Marston
After the airplane flew around the world, scientists compared the two clocks. The clock on the fast-moving airplane was slightly behind the clock on the ground. So, the clock on the airplane was traveling slightly slower in time than 1 second per second. For example, we use GPS satellites to help us figure out how to get to new places. NASA scientists also use a high-accuracy version of GPS to keep track of where satellites are in space.
GPS satellites orbit around Earth very quickly at about 8,700 miles (14,000 kilometers) per hour. This slows down GPS satellite clocks by a small fraction of a second (similar to the airplane example above). However, the satellites are also orbiting Earth about 12,550 miles (20,200 km) above the surface. This actually speeds up GPS satellite clocks by a slighter larger fraction of a second.
Here's how: Einstein's theory also says that gravity curves space and time, causing the passage of time to slow down. High up where the satellites orbit, Earth's gravity is much weaker. This causes the clocks on GPS satellites to run faster than clocks on the ground.
The combined result is that the clocks on GPS satellites experience time at a rate slightly faster than 1 second per second. Luckily, scientists can use math to correct these differences in time.
Credits - spaceplace.nasa.gov/time-travel/en/
Extra info by 𝘛𝘳𝘰𝘵𝘴𝘬𝘺 -
So time travel was not discovered by Einstein, it was invented by John Marston
The Hafele–Keating experiment, prooved some of the the theory of relativity. In October 1971.
https://en.m.wikipedia.org/wiki/Hafele%E2%80%93Keating_experiment said:
The Hafele–Keating experiment was a test of the theory of relativity. In October 1971, Joseph C. Hafele, a physicist, and Richard E. Keating, an astronomer, took four cesium-beam atomic clocks aboard commercial airliners. They flew twice around the world, first eastward, then westward, and compared the clocks against others that remained at the United States Naval Observatory. When reunited, the three sets of clocks were found to disagree with one another, and their differences were consistent with the predictions of special and general relativity.
Photo of the first confirmed timetravel
On line flights, just a fraction of a second forward - but it worked !
They ever remained younger than every no timetraveller.
