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Rigorous Science

Posts tagged transportation

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Q&A Determining a Practical Bridge Design for a Wide River and Heavy Traffic

Hello everyone, I am thinking yet again about infrastructure. (my calendar project recently asked about... well, that's outside my expertise, I'll get back to that eventually) And I am thinking of...

2 answers  ·  posted 10mo ago by Bianca_Railway‭  ·  last activity 9mo ago by dsr‭

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Q&A How would an interstellar spaceship's speedometer work if everything else is moving?

A speedometer is a gauge or device used for measuring instantaneous speed of moving vehicle roughly speaking, so for example the reading shown on the speedometer of a car parked at road side displa...

14 answers  ·  posted 8y ago by user6760‭  ·  last activity 1y ago by James McLellan‭

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Q&A Does crossing a wormhole happen instantaneously, or with the course of time?

I have seen many science fiction movies that depict traveling in space through wormholes. The appearance though, and the time it takes to cross a wormhole, tends to vary: On one hand, we have the...

2 answers  ·  posted 5y ago by ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭  ·  edited 4y ago by ArtOfCode‭

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Q&A Euro-American Maglev Railway - Transit without stopping

I have a maglev train starting in Paris, going through Siberia, bridging over the Bering Strait, and running down the West Coast to San Francisco. There are other major lines splitting from this on...

9 answers  ·  posted 4y ago by Prahara‭  ·  last activity 4y ago by Prahara‭

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Q&A Planning intra-city public air transport

I want to have air transport as the dominant means of public transportation in my fictional city. But how would such a system operate to handle many commuters with maximum efficiency? Specifically ...

4 answers  ·  posted 4y ago by PentalimbedP‭  ·  last activity 4y ago by PentalimbedP‭

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Q&A How can sapient beings engineer transportation and building when they can only count 0, 1 and many?

Imagine a species of humanoid beings living on an Earth-like planet somewhere in the universe; they have developed complex spoken and written languages and they can study their own anatomy and the ...

6 answers  ·  posted 4y ago by user6760‭  ·  last activity 4y ago by user6760‭

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Q&A How would aliens abduct an entire nation of millions from a planet?

I am looking for as hard science answers as possible, but I am willing to bend some rules for a good answer. Assume they need to move 10 million 100 million people off of a planet what technology...

7 answers  ·  posted 4y ago by LukasExemplar‭  ·  last activity 4y ago by LukasExemplar‭

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Q&A How to hide a spaceship visiting Earth?

So, me and the boys have decided to take a trip down to Earth for reasons that matter not be it science, leisure or fleeing persecution. It is no concern how we blend in but our spacecraft poses an...

4 answers  ·  posted 4y ago by Mendeleev‭  ·  last activity 4y ago by Mendeleev‭

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Q&A How to ride a fish?

In my world, there are giant fish, reptiles, and bugs. My question is, how would you be able to put a harness or saddle on a fish? Info: Swamp bio being ridden by humans Fish range in all differ...

4 answers  ·  posted 4y ago by BloodyNightStalker‭  ·  last activity 4y ago by BloodyNightStalker‭

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Q&A Transporting radioactive fuels

Imagine a light spaceship capable of traveling at 0.999c is tasked to tow a radioactive cargo containing millions of tons of polonium and radium, however the container holding the radioactive mater...

4 answers  ·  posted 4y ago by user6760‭  ·  last activity 4y ago by user6760‭

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Q&A What kind of transport infrastructure would there be in a new planetary colony?

Say humanity have the luxury to start anew. Colonizing a planet where speed of colonization is not an issue. Let's assume planet conditions and gravity pull similar to Earth. Technology relatively ...

4 answers  ·  posted 4y ago by Sunyatasattva‭  ·  last activity 4y ago by Sunyatasattva‭

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Q&A Practicality of a ship-sized twisted-rubber engine

I was considering this answer I wrote: https://worldbuilding.stackexchange.com/a/21374/75 It got me to wondering... if we had a flying sailing ship with a twisted-rubber energy storage device that...

2 answers  ·  posted 4y ago by Monty Wild‭  ·  last activity 4y ago by Monty Wild‭

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Q&A Civilization on an Earth-like planet without using waterways for transport

On Earth, civilization grew up around river valleys. Rivers are useful as a water source, a food source, and a waste disposal system, but their most important function to a civilization is enabling...

2 answers  ·  posted 4y ago by Snowbody‭  ·  last activity 4y ago by Snowbody‭

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Q&A Could a non sentient land animal evolve an innate knowledge for making boats?

I understand that some non human animals build structures that they innately know how to build, such as how birds innately know how to build nests, and spiders innately know how to make webs, and b...

5 answers  ·  posted 4y ago by Anders Gustafson‭  ·  last activity 4y ago by Anders Gustafson‭

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Q&A What would it take to make catapults a alternate way to travel?

I have an idea for a futuristic way to travel for my Story. People get into a capsule, and it launches itself extremely fast in the air. What would be needed to make this happen for real and what c...

6 answers  ·  posted 4y ago by Jwrecker‭  ·  last activity 4y ago by Jwrecker‭

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Q&A An infinite train circling the planet that never stops

As a way to travel fast, my Earth-like planet is going to have a special train, circling it (the axis of the 'tracks' is aligned with the planet's axis of rotation). The thing about this train - i...

13 answers  ·  posted 7y ago by Yuriy S‭  ·  last activity 4y ago by Yuriy S‭

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Q&A Victorian long-distance express transport?

In my world, law enforcement is dispatched from the capital to places around the island. The reason for them being dispatched in this fashion is due to there being few officers and the capital bei...

8 answers  ·  posted 5y ago by A Lambent Eye‭  ·  last activity 4y ago by A Lambent Eye‭

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Q&A Is it possible to use a planet's magnetic field for transportation?

On a planet, a species uses magnets (i.e. float in the air) instead of wheels for transportation. Roads are easy enough, just slap some magnets in it, at it works. But I was wondering about the f...

5 answers  ·  posted 6y ago by OneSurvivor‭  ·  last activity 5y ago by OneSurvivor‭

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Q&A What is the cheapest way to move large amounts of trade goods to orbit?

Given a world with similar size and atmospheric composition to Earth that has a commodity export, be it grain or oil etc, that has trade with other planets, what would be best way to orbit massive ...

5 answers  ·  posted 5y ago by knowads‭  ·  last activity 5y ago by knowads‭

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Q&A Making airships\blimps\dirigibles the dominant form of air transport

While similar to other questions they mostly focused on what impacts required in the past to keep airships as a popular air transport method today, this question is about how to make airships the d...

11 answers  ·  posted 5y ago by cypher‭  ·  last activity 5y ago by cypher‭

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Q&A How to safely derail a train during transit?

Imagine a single, long, straight stretch of track. On the track there is a train heading in one direction at 100 km/h and a second train heading towards it at 200 km/h. The latter train is a specia...

22 answers  ·  posted 5y ago by A Lambent Eye‭  ·  last activity 5y ago by A Lambent Eye‭

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Q&A What would a steam locomotive look like if steam power became yet again the main type used in rail transportation?

Assume in the very near future almost all rail transportation would return to steam-powered locomotives. To define it exactly, I mean solid fuel is burned inside the locomotive, which boils water, ...

11 answers  ·  posted 7y ago by vsz‭  ·  last activity 5y ago by vsz‭

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Q&A Would it be feasible to have a wolf as a mount?

On my fantasy planet, humanoid peoples are at war and ride different animals into battle, including wolves. People and their wolves are, for all intents and purposes, extremely similar to humans an...

8 answers  ·  posted 5y ago by weakdna says reinstate monica‭  ·  last activity 5y ago by weakdna says reinstate monica‭

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Q&A How long would it take for nuclear energy to become adopted in a world on the brink of collapse?

For reference, I'm going with the accepted answer given here: How would technology adoption of Lithium Air battery work?. In my world, it makes sense that governments would be very interested in ge...

1 answer  ·  posted 5y ago by Cuervo77‭  ·  last activity 5y ago by Cuervo77‭

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Q&A How would technology adoption of Lithium Air battery work?

I want to have a world when humans got serious about global warming and succeeded in making Lithium Air battery work. Since the lithium air has same potential energy density as gas, and electric en...

2 answers  ·  posted 7y ago by Care_Bear‭  ·  last activity 5y ago by Care_Bear‭

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Q&A Speed of water jet driven by 300 bar

In a setting where portals can be opened between one location and another, Suppose you open a portal of area one square meter, with one end at the surface and the other end at the bottom of an oce...

2 answers  ·  posted 5y ago by rwallace‭  ·  last activity 5y ago by rwallace‭

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Q&A How would a species in one dimension with its own properties go to another dimension with slightly different properties?

In my world, I have three dimensions, each of which have their own special properties. From each of these three dimensions come a master race of said dimension: From the first, the master race is...

3 answers  ·  posted 5y ago by Mansoor Ahmad‭  ·  last activity 5y ago by Mansoor Ahmad‭

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Q&A Construction of Large Naval ships - Structural

Here's the explanation These are the structural questions about my "Super Dreadnought". How wide would the ship have to be to be stable on the water? Would the Caterpillar treads hold the weight...

4 answers  ·  posted 7y ago by CaptClockobob‭  ·  last activity 5y ago by CaptClockobob‭

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Q&A Simulating gravity in a gravity-less universe

In my fantasy universe, there is a disc-shaped world that has a flat surface that has roughly the same atmosphere as Earth (see this); the atmosphere moves along with the world. There is no gravity...

4 answers  ·  posted 5y ago by mario_sunny‭  ·  last activity 5y ago by mario_sunny‭

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Q&A How could a stone age tribe of merfolk tame blue whales?

An underwater stone age tribe of merfolk captured 2 baby whales and killed the adult beast for meat. My sea people would like to tame the young whales and use them as transport when the babies rea...

1 answer  ·  posted 5y ago by Seraph Myrmidon‭  ·  last activity 5y ago by Seraph Myrmidon‭

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Q&A What pockets should Spider-man use?

Before we get into the question, I'd just like to say that this isn't specifically for Spider-man, but more of a general "character who moves around a lot and finds themselves upside-down quite oft...

7 answers  ·  posted 5y ago by Sydney Sleeper‭  ·  last activity 5y ago by Sydney Sleeper‭

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Q&A Reasons why air travel isn't feasible, but ground travel is?

My story takes place on an Earth-like, inhabited world that is far larger than Earth, has roughly 110% of Earth's gravity, and has unusually high (and generally unexplained) EM emissions permeating...

21 answers  ·  posted 6y ago by Brian Lacy‭  ·  last activity 5y ago by Brian Lacy‭

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Q&A Train-World: The shatterpated machinations of Spoorcaneers - Tossing & Turning

...and while I'm at it: You've another 47 seconds to finish up and get back here before I gotta throw her in reverse... Acting Navvy on the Marube @63kph and ~4km distance from a forthcoming t...

4 answers  ·  posted 6y ago by dot_Sp0T‭  ·  last activity 6y ago by dot_Sp0T‭

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Q&A Sailing without wind, but with strong currents

Context On my world, there is a lot of water: sea, oceans, ... There are also firm land and islands, so it's interesting to travel on the water. The problem is that there is NO wind at all, and lo...

9 answers  ·  posted 6y ago by Legisey‭  ·  last activity 6y ago by Legisey‭

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Q&A What is the viability of trains on planets covered in water?

I want to write a science fiction book on a planet mostly covered by ocean, but I also want to incorporate trains into my story. However, it seems that with advances in ship and plane technology, t...

17 answers  ·  posted 6y ago by Evren Yungjello‭  ·  last activity 6y ago by Evren Yungjello‭

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Q&A Ergonomically correct eagle riders in the modern age

Since Tolkien put people riding on giant eagles in his books (or maybe even before that), the imaginarium of riding the winds on the back of magnificent birds has generated a plethora of images and...

6 answers  ·  posted 6y ago by Mindwin‭  ·  last activity 6y ago by Mindwin‭

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Q&A For goods, do you need a human if you have reliable AI driving?

In a "futuristic" society (think Ghost in the Shell or Human Revolution), where you have AI driving vehicles that carry goods in a reliable way, is there any reason to have a human traveling with t...

6 answers  ·  posted 6y ago by Inferry‭  ·  last activity 6y ago by Inferry‭

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Q&A How closely should be placed industrial centre / NIMBY from urban centre?

I'm trying to design a realistically looking capitol (with a few milion people) for one human nation on an exoplanet. The technology level is barely better than contemporary. The city is placed ...

3 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A How fast a current can ancient water way travel overcome?

This question has similarities to this one but concerns canal travel in more ancient times and is aimed at finding an approximate speed of flow not variables. Background Assume an Earth-like world...

4 answers  ·  posted 6y ago by Slarty‭  ·  last activity 6y ago by Slarty‭

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Q&A Can a Society of Barbie Dolls Make a Network of Aerial Cable Cars?

When I was a kid, I conceptualized a post-apocalyptic story entirely starring Barbie dolls. One idea I had about how they would live and get around involved transmission towers, or power towers. Im...

1 answer  ·  posted 6y ago by Lot-Of-Malarkey‭  ·  last activity 6y ago by Lot-Of-Malarkey‭

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Q&A How to get down Valles Marineris

In my World, a perfect storm of catastrophic size strikes earth and black-death levels of mortality ensue, cutting short the Great Space Race. The only problem is that there are over 10,000 people ...

8 answers  ·  posted 6y ago by System‭  ·  last activity 6y ago by System‭

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Q&A Feasibility of a Synthetic Buoyancy Bladder, Used in the Air

Many fish have specialized organs called buoyancy bladders which allow them to control their buoyancy - effectively rising or sinking in the water. What if humans adapted this to use in the air? I...

4 answers  ·  posted 7y ago by Zxyrra‭  ·  last activity 6y ago by Zxyrra‭

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Q&A What level of manufacturing would a "mining world" possess?

I'm picturing an universe where FTL travel was invented as a sort-of-fluke, and artificial gravity technology isn't available. Transit between star-systems takes at least a few days and a star's gr...

7 answers  ·  posted 6y ago by Haem‭  ·  last activity 6y ago by Haem‭

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Q&A The impacts of the Moon's limited gravity on the design of a Moon city's transportation network

In the near future mankind could well permanently settle on the Moon. Whether for research or mining or just good old fashioned novelty is irrelevant. The colony includes: Large domed structu...

6 answers  ·  posted 7y ago by James‭  ·  last activity 6y ago by James‭

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Q&A How long would it take for cooperating insects to transport a grape-sized rock from Finland to South Africa, in an efficient way?

The rock is spherical. All arthropods are included. They have no time limit and are "programmed" to cooperate, but lack intelligence. While there is no time limit, the insects do this transportatio...

2 answers  ·  posted 7y ago by Fred the John‭  ·  last activity 7y ago by Fred the John‭

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Q&A Forming the "useless coast" -- i.e. no shipping allowed

How would you form an extended stretch of coastline that is effectively useless for overwater trade -- i.e. there are no sheltered areas to serve as ports, or trade routes that can reach all the wa...

10 answers  ·  posted 8y ago by Shalvenay‭  ·  last activity 7y ago by Shalvenay‭

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Q&A Could self-driving light rail/subway/tram trains be much shorter (fewer cars) than systems where trains need drivers?

Tech level: more or less contemporary, no tech that would put you in awe. I'm trying to make realistic, driverless, mass-transit system. The first idea was that "driverless" implies that in each ...

5 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A Proxima Centuri - Traveltime

"Group B" has acquired [Plot-device] and it is able to deliver over time infinite energy of the type needed for the story to work. They decide to place it on the most powerful space engine known t...

1 answer  ·  posted 7y ago by Magic-Mouse‭  ·  last activity 7y ago by Magic-Mouse‭

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Q&A Energy Transfer Through Space Without Adverse Affects

Perpetual motion doesn't exist... or does it? In space planets continuously spin around stars for trillions of years due to inertia and gravity balancing each other out. What if a race of brilliant...

5 answers  ·  posted 7y ago by mkinson‭  ·  last activity 7y ago by mkinson‭

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Q&A Would spacecraft 's trafficators be necessary?

Year 2317 C.E. traffic report: heavy traffic expected along upper Curiosity sector H-311 going towards Juno boulevard, there is an accident at Exit C right lane, so vehicle leaving for Europa via t...

6 answers  ·  posted 7y ago by user6760‭  ·  last activity 7y ago by user6760‭