Time traveling is hot topic for any one. There are no of theories and ideas. A latest is photon entangled and its motion. Electron well is one could helpful in this work. Atoms and molecular Twitzers have made possible mol displcements by light lassers. In future remote possibilty of Tele mol traveling by this lasser twitzer like molecular capturing machines control by robotics and DNA computers.

Entanglement is something different - no time travel needed for that one..Personally I really don't understand that one but its more related to the passing of information faster than light, or instantaneously, no matter the huge distances…or spooky action (cue ghost busters) was the phrase coined by Einstein although he did not discover this ( I am not even sure how they prove it).

Gravity currently distorts time...The bigger the gravity well the bigger the distortion

In theory light distorts time…or is it mass or energy (they are the same) but never ask about gravity
The only viable time machine I currently know is motion (actually everything moves perhaps that is why there is time) to a gravity well, even small one
and that dude, i forget his name Neil ear biting Tyson wanting to build one for 250K and drop a proton or neutron into it..it only require 3 lasers and even then I am not sure how he would prove the proton or neutron or quacking ducks would travel back or slow or stationary in time (never forward)..as light (energy) warps space time
and hobgoblins

Interesting stuff. I did my uni thesis on wormholes, in summary: Mother Nature does not seem to like time travel! In fact Prof Stephen Hawking isn't a fan either! He proposed his chronology protection conjecture that doesn't permit time travel beyond the quantum domain, i.e. the world of subatomic particles.

It's worth pointing out that in classical relativity (i.e. when you don't take into account quantum mechanical phenomena) faster than light, or superluminal, velocities are not prohibited, but only for massless particles. We call these hypothetical objects tachyons.

However for time machines we do not need a mechanism of traveling "faster than light" to begin with. Here's a hypothetical method: In general relativity energy (aka mass since E=mc^2) produces warping of space-time and all physical objects travel along the straightest possible paths in this warped space-time. The field equations of general relativity (with reasonable energy conditions) permit "exotic" space-time distortions that could connect distant regions of space-time, we call these hypothetical objects wormholes. Some physicists believe that wormholes are necessarily time machines. However what we require is a source of negative energy density to keep the wormhole "open" against gravitational forces on the order of 10^40 Nm^-2 that's a number with 40 zeroes behind it! Like I said Mother Nature does not like these things! Some people "dream" of using anti-matter to produce such an exotic space-time distortion.

Both stufes are good one. But here what I said is kind of DNA comput. guided lasser twitzers that can be designed in next future. presently this lasser clips can spacially move and displace mol. structures like cell orgenells in the cell or body tissue. However when such worm hole kind space work is possible by use of DNA computing a future computing process work on enzy will help with aid of electron well and quanta dots like aids will allow a time and space travell we can hv lasser UFO like objects. This is the probable UFO with full mol life in its inside in photons informations. Further research and investigation are require to study such activity we are observing on earth. a such great eg is crop circle and many more we have.

I wonder who's going to be offering traveling insurance for that one?!

Its better you try to see. T.V. prog
like Discov. etc.

If you are going to discuss the topic of time, then first give a definition of "time".

Well Jolly and Wick... can better say on Time

Does that mean that you can't define "time"?

No its not like that but see my look is entirely different on Time. If you are intrested you can see my POST on this like: - Time a Mystry and IInd is Space Time..... and few more Virtualty, Singularity, Black Hole . Hope you will find some of Intrest.

What is keeping you from posting a definition of "time" on this thread?

You need to solve first Mystry of Time. Then only you are authority to say any thing. Better you go thr my post

@jollyface

Hey, not arguing but you seem smart. There is a Stephen Hawking video on netflix where he supports two time travel theories. I am only a upcoming college student...and i just realized i am on a single site emailing a dude, oh what the hell i love science, sucked me in.

Being i dont have all the knowledge and terms yet, bear with me. You will probably get my drift. One was if we were actually able to build a train so to say that traveled around the equator, just under the speed of light. Its very hard to explain this system to some people, i only understand the concept, but dont have very good vocabulary or english skills to support my thought.

So this train is traveling just under speed of light, but the people on board are able to get up and walk around the train. I am probably getting this wrong two, but the calculations were something like 10 minute trip, but cant remember the age difference on earth. Time and space can really make your head spin, i love this stuff. I tried to explain it to a friend that when you are on a plane at 30k, flying how fast, but you walk around, your biology is almost halted in time and space in relation to the ground, at normal speed.

Second was a little more far fetched. It was if we were able to propel ourselves the the outskirts of the universe to a black hole, stayed just beyond the gravitational pull, allowing the pull to propel even faster. I dont know anything else about this one. Its alittle past me.

I love the worm hole paradox where if a person built a warm hole, was able to go back in time a few seconds, see themselves through the wormhole at that time prior, and shoot your self. But the worm hole itself would be unstable to the point of sucking time and space out of itself until matter is warped all to hell, the universe just implodes so to say

instance of something happening

Nuclear Decay!
Used as a Frame of Reference!

Interval between decay of two Nuclei!
Holds good in our Neck of the Woods under "Normal" Conditions!

As I understand it, time is the measurement of the movement of celestial bodies.

One year is defined as one complete trip by the Earth around the Sun.
One day is defined as one 365-degree turn of the Earth on its axis.
A lunar month is defined as one complete trip by the Moon around the Earth.
A light-year is the distance that light travels as the Earth makes one complete trip around the Sun.

What if we didn't rotate, what if all life settled in the middle lying between light and dark (temperature for main reason). With this in mind, the sun would not move from our perspective, we just rotated around it (same side facing). In the wake of civilization, the sun would not have been used for purposes of agriculture, appointments, and rituals. Would it still be a concept used as a reference? Think not. Time is therefore an illusion. It was created by man as a tool. It has not stopped, accelerated, or slowed down in relation to us. We set the clocks, and our technology follows programming based on our constant speed and rotation. Times only importance that I see is to please another human...whether a spouse, xhild, driend, boss, or couch potato. Our lives depend on time, or does time depend on us?

There are circumstances where time in relation to speed, our age and biology can differ from those exposed to different conditions...but again, thats just something not coined yet, or I don't know the term. I am sure there is one. We just keep hanging on "time" as a somewhat physical thing, not just a concept used as a tool for function in society.