New answers tagged

1

This would be noticed rapidly by observations of stars with high proper motions. These are stars that through a combination of being close to us, and moving at high velocity, move noticeably against the background of more distant stars over the course of a few months. It so happens that there are no stars with high proper motion that are visible to the naked ...


2

Your astronomer has a number of options. Binary stars. Many binary star offer orbital periods in excess of 50 years. For example, Alpha Centauri A-B pair has orbital period of about 80 years, and Proxima Centauri - about 547,000 years. By observing this system and comparing it to "present", an astronomer may find the amount of time passed with ...


1

Show them something that they can understand and use If you show modern electronics, where are they going to get batteries? Will they accuse you of using black magic? These things are too far ahead for them to comprehend as technology. They will think they are magic. Instead take: A good stock of Medications like aspirin and paracetamol, hemorrhoid cream, ...


2

Just Demonstrate It Take them in your time machine to the previous day, then let them watch themselves from a distance doing the exact things that they did that day. I'd be pretty convinced, wouldn't you? Other kinds of tricks can include the contents of a time capsule that you could get the information or contents of, either by having them before you left, ...


9

The concept of time travel was not something that most people would have known about in your target time period, and the concepts of occultism were still very prevalent throughout Europe at that time despite the Renaissance. This means that without physical evidence, you're not likely to convince them of anything more than precognition of some sort. This ...


6

Bring some modern technology, like a tablet or a Polaroid camera. Show that you can snap full-color photos and even shoot video that can be played back on the tablet. Even a Zippo lighter will impress, as will a modern set of binoculars (the telescope wasn't invented until the 17th century). A model airplane that runs on alcohol will be an eye-opener. Also ...


3

Use software such as Kiwix to download a complete text dump of Wikipedia (in the appropriate language) to your phone. Take along a few solar chargers and spare batteries as well. Let them browse.


8

Given the period involved (late 16th century) and the type of person to be persuaded (intelligent, open minded and held in high standing) there is a chance that it could be done. There is no way to guarantee it's possible. If the are of high standing and travel in the appropriate circles, they may have a reasonably well documented life which the time ...


3

This sounds pretty similar to "A Connecticut Yankee in King Arthur's Court." Except the traveler is coming from the 21th century, not late 1890's, and the time period is Renaissance not medieval. But in that book, the time traveler- an engineer- is able to use his advanced knowledge to convince people he's a magician. In your setting, they would ...


5

I'd go with a good pair of heavy military boots. Anyone who does medieval reenactment with realistic gear will tell you that authentiboots will be either useless on slippery surfaces (e.g. wet grass/muddy slope), or, when fitted with hobnails, slippery on hard surfaces (such as stone paving). On the other hand, a good thick modern rubber sole will grip on ...


0

Ripples in Space-Time We think of space-time as a sort of fabric with indentations where mass is, the gravity well. What if every time somebody time travelled, they create a ripple both at their origin point and their destination point. As a visual reference, it is akin to taking a pebble out of water in one place and dropping it back into the water in ...


0

Simple power requirements are an obvious limitation. It takes a lot of magic to use and takes a lot longer to recharge what's used than the size of the jump. Eg. Your character might have enough magic for a maximum jump of 12 hours, but it takes two days to recharge if not using any magic, and they'll probably be using it for other things, thus extending the ...


2

Everyone will refer it up the line First, contrary to some other answers, the occupants of a modern (2020) house will have no difficulty convincing police that they have very advanced technology. The police may not believe the time travel story - they may think it's misplaced prototype military technology or aliens - but they will not ignore this. For ...


1

the parents would be institutionalized while the children seized by state and put into foster care.


2

The police are not that interested. They have a lot more important things to worry about than some pranksters claiming to be from the future. Nobody seems to remember there was a house there before and people say it appeared overnight, well all very strange, but what laws have been broken and who is pressing charges against who on what grounds exactly? ...


0

A lot depends on just where the building went up. Is there proof that the building literally materialized overnight, or could it be squatters who ran up a shack quickly since the last time someone looked? 1985? The height of the Cold War ... People with a wild story and no papers? Hmm. A Soviet psy-op? That gear. Top-secret prototypes they have stolen? Or ...


8

The police quickly learn that these people insist they’re from the future, and after a few displays of future technology, the police are convinced. My suspension of disbelief has stopped here. Though cops are never depicted as particularly sharp fellows, if they believed the first stranger's story we would have plenty of "powdered sugar" reaching ...


2

Have time travel use something that the protagonist must gain Maybe instead of having a literal number of uses of time travel left (ex. The Girl Who Leapt Through Time), have it use up some object of importance that the protagonist must gain first throughout the story. For example in the game Life is Strange, the protagonist can only rewind time by using a ...


2

This is probably too out-of-the-box but ... they are limited by the conservation of information. If they take information back with them, they must give up another memory to make room for it - and as the process is not 100% efficient, the memory must be of greater scale than what they want to take back. They can also send information back in other people's ...


2

Rick and Morty had a good limitation. Essentially you had to explicitly press a remote designating the destination, and could only travel to that destination (unless you designated a new one). this effectively creates three zones of time, the past which is set, the time between the present and destination point, and the future. (don't forget about the remote ...


5

Your protagonist's biology doesn't reset. This means that if they wipe out on a motorcycle because of loose gravel on the road and break their arm, going back in time 2 minutes before the crash will lead them to "spawn" on their motorcycle with a broken arm. It keeps them from using it as an injury-avoidance technique. It also means they keep aging!...


5

Two Suggestions drawing inspiration from Re: Zero - Starting Life in Another World and Steins Gate (both great stories involving very similar premises) Re: Zero - Starting Life in Another World Re: Zero - Starting Life in Another World is a Light Novel/Anime you could take inspiration from. The protagonist has a similar power with extremely large drawbacks. ...


1

Imperfect reset What psychological effects will there be from experiencing the same time twice? The more time folds in on itself the more the mind does too. We're only meant for time to flow through us once, doing so more taxes the brain. The more frequently its used without rest (like in times of desperation) expect symptoms of PTSD, psychosis, hearing ...


6

It's not a reset, it's a recall. Instead of their power letting them say "I will now send my consciousness back in time by 3 hours", it instead lets them say "In 3 hours, my consciousness will be sent back to now". They can't cancel it, and they can't set a new reset point until their memories have been sent back, in either timeline. ...


4

Limitation 1: This is not a get out of death free card! Using this power takes concentration and time. If they get shot they will not have that time. Limitation 2: There is a time limit. They can only go (say) one hour back. They can't go around this by multiple jumps. If they have seen some version of ten o'clock, they will never be able to go back ...


3

Just some ideas : An entity that guards the flow of time / fate, like if someone can alter fate, depending on how huge the effect, it might be ignored, once or twice, but repeated use, the user might feel something or get some kind of warning, until they meet with the entity itself the rest is up to your imagination. The protagonist think the only one ...


4

Time scars. The first time, you reset, it's easy. The second gets harder. The third, harder yet. No, this doesn't involve the trust issue, unless perhaps the character has to learn to trust the people who figure out the problem.


4

The protagonist does not reset, they get reset To prevent the protagonist from resetting at will you could make it so that instead of resetting time themself they can allow someone else to reset time (and only the other person keeps their memories). You could further restrict the number of uses by only allowing the protagonist to give someone the ability to ...


5

Alright, so first off go lookup the plot of Avengers Endgame and SOMA. I’ll wait here.... Alright, here we go. So in Endgame, the characters are able to travel through time quite freely, (as long as they have fuel to do so) BUT, any changes they make to the past will create a new timeline instead of changing the one they are in. This is because when you ...


9

Time divergence and human error. Lets say you get into a fight and someone cuts your arm off because you are a worse fighter than your opponent. So the next time you know what your opponent will do! Unfortunately your opponent will not know what you will do, so your opponent will simply react to what you are doing. You wont return to the exact same spot at ...


5

The TV-Show "Rick and Morty" did something similar recently in "The Vat of Acid Episode". It seemed to be a reset device as you suggest, but since the main protagonist considers himself to be above needing time travel, it wasn't really a reset divice. Instead the device transports the users consciousness into one of the many parallel ...


27

The Character is Taken Back to a Spot in His/Her History In Edge of Tomorrow the character is set back to the first day of enlistment, several days away from where most of the action is. In Groundhog Day the character is sent back to bed at the beginning of the morning. In either event, the character has to re-win all the little victories between; and can ...


14

Possible limitations for the resetting-ability: Destination limited to special points The protagonist can't use his ability to jump back to any point in time, there are some restrictions. For example it has to be any midnight. Startingpoint limited to special points The protagonist can't use his ability to jump back from any point in time, there are some ...


0

This answer is only tangentially connected to your actual question, but it ties into the question you are asking. In addition to the 'how do I convince people' problem, you also have an Oracle of Delphi problem, so any solution needs to solve both. Time travel eliminates the distinction between the future and the past What can be done to change things? ...


2

I'd like to build on the excellent answer from NosaJimiki, because although the first steps are pretty good, I think it goes off the rails a little with needing to reinvent the iron age. Resources needed: A forest, some stone, some clay Step 1) Stone age tools - You will need a round, bowl shaped stone, a large, flat stone, and a sort of trough shaped stone. ...


-1

Brush up on your biology/chemistry & glass making skills and you might be able to copy the WW1 technique of acetone-butanol-ethanol fermentation for making cordite. And somewhere to grow sugar cane for the sugar.


1

If he looked back at celebrity gossip to see what happened to everyone from his own timeline - and can remember it - he can easily show he has a knowledge of the future , which is what is needed here. Even better if he can remember/predict other minor natural catastrophes as that's the sort of prophet he wants to be.


1

I am rephrasing the question a bit: What can he do to prevent the disaster? With knowledge from the future the protagonist can earn a lot of money on stock markets. Or even better on option and derivative markets because these yield a higher profit. With the obtained money he can either work on preventing the disaster himself or buy influence that helps ...


1

Answer: Get some decomposing vegetation, put it in a pig's bladder - wait. Quote "...acetone occurs naturally in the environment through decomposing vegetation..." https://badacetone.weebly.com/risks-and-benefits.html


3

There was no year zero. The current numbering of the years was invented in the 6th century; they had no idea of zero-based numbering in the 6th century. The year before 1 CE is counted as 1 BCE. Historically, acetone was originally made (by Andreas Libavius, at the beginning of the 17th century) by the distillation of lead sugar (aka lead acetate). You can ...


19

With no starting tools this is a big undertaking for your loner, but with the right skill set you could do this with the natural elements you would expect to find almost anywhere in India. In any such suvival setting, you will first want to make some basic stone tools: an axe, a chisel and a hammer. This will involve a lot of time spent at the river or beach ...


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