259

Railway Maintenance Vehicle Ride on the tracks. They go everywhere and will be mostly clear. Obstruction on the tracks? Hop off and drive around it. Build a living space and storage space in the large flatbed area. Extra bonus: Crane Arm. Use it to clear paths, load supplies and fight zombies. Most models change modes with just the push of a button! You ...


199

It depends on the universe. The problem with spaceships going underwater is that they are usually built to do only one thing. One of the most famous scenes from Futurama is when the crew's spaceship sinks into the ocean: Prof. Farnsworth: Dear Lord, that's over 150 atmospheres of pressure! Fry: How many atmospheres can this ship withstand? Prof....


181

If the antimatter containment is failing then power would be failing also. Escape pods wouldn't require power. They are also located all over the ship and the vast majority of the crew could reach one and escape in less than a minute. A transporter system would be located in one part of the ship and at best transfer a handful of crew at a time. If the ...


180

The question is built on a large number of false premises. Once they are removed, the question no longer stands. The term "apex species" is used without defining it, with an implication that humans are the apex species. This term is normally used to refer to apex predators, and there are many apex predators on Earth, including crocodiles and some snakes. So,...


168

Take a leaf from early submarines. Specifically the inner torpedo tube doors which you do NOT want to open if there is pressure on the other side (A boat sinking flood sort of mistake)... There is all kinds of interlocking, but that requires power, the ultimate safety check is a small valve which you open before even thinking about undoing the dogs on the ...


161

So Descartes's Meditations on First Philosophy speaks on this. How would you determine that a perfect deception is a perfect deception? If all of your senses are lies and constructs, perfectly flawless, how do you figure out that you are in this deception? Simply by the very definition, the deception is perfect; so no flaw can be found, and a flaw is what ...


143

A guy named Arioch has a webcomic called Outsider (highly recommended, BTW) with a simple and elegant solution to this problem. Ships in that universe use a drive that jumps them through hyperspace, but the drive only provides the initial impulse to break the ship out of the plane of normal space; the hyperspace trajectory afterwards is purely ballistic. By ...


132

FTL (faster-than-light) travel lane chokepoint The space battle(s) aren't actually fought about that planet, they're fought because this star system represents a strategically valuable chokepoint in the network of starlanes (or however you want to call them^^). Starlanes are connections between stars where FTL travel is exceptionally fuel-efficient due to ...


128

This turned out unexpectedly fun... and for once the answer to a question involving 99.99% of the speed of light isn't "everybody dies" Where is this sphere being fired from? If it's from outside the solar system then hitting the earth as a sphere is.... a problem... The volume of 1000 kg of tungsten = 51.9 L Radius = 0.23 m That's 5439.5 moles of ...


122

Giant coiled spring. It would uncoil itself and drive the chain. It would provide loads of power on demand. Storing that kind of energy as a coiled spring is dangerous, but I see that as a positive thing for your scenario.


116

Spaceships are not supposed to withstand a lot of external pressure Have a look at our sister site Space.SE and the question Do spacecraft have similar structural integrity requirements as submarines? for some information about this problem. Here are a few quotes relevant to this question that come from the answers: Next, the orbital craft. To get there ...


113

All right! You're going in the BAG. http://northbaybulldogs.com/huge_gymbag_person/ One BAG fits all. You get to keep your head out if you are good and your head is the right shape. Think twice: if something comes out of you, it stays with you in the BAG. BAG is air permeable. It has strong handles or maybe some levitation tech. BAG withstands a lot ...


112

You could use your invention to power computer hardware to "mine" a cryptocurrency like bitcoin. "Proof of work" cryptocurrencies like bitcoin deliberately waste enormous amounts of energy generating redundant cryptographic hashes. Today, most cryptocurrency mining happens in places with cheap electricity, because the limiting economic factor is the cost of ...


110

What about a boat? (zombies can't swim right?) Europe has a pretty good river system and will get you to pretty much every big city. The two mechanics will have to deal with operating locks along the way, there's always a manual override. You can go with a group of two or three motor yachts or one large river cruise ship or converted freighter. Boats are ...


109

It's important to understand that our "dominance" as it were, is entirely a fluke. There's no intent or drive to make something intelligent; and there's little about our general design that made it even likely. We just had a series of flukes. Our ancestors were members of the groups which: on dividing as single-celled organisms, stayed together in a ...


106

Robot War The opposing factions are in fact the robotic fleets of two different civilisations that once occupied the planet, they populate much of the rest of the star system and have functionally infinite resources. They are continuing their last directive. Claim the homeworld at all costs. They will never ever stop fighting and their interminable ...


104

Cryo sleep is a medical procedure. Most full-body medical procedures are performed on nude subjects, even today. Reasons are numerous: In case of emergency, you need ready access to various parts of human body, and you need it now. It's easier to control bedsores without clothing. For long procedures, you need catheters in urethra, anus etc, so not much ...


103

The reason no space-faring nation would invest in large, expensive ground forces is the fact that they have no defense against your kilometer-long dreadnoughts. However, a small special forces team could still be used because their defense is the risk of collateral damage. Got a 100,000-strong soldier-and-mech army on your planet? The fleet clears that ...


101

Space battles, at least realistic ones will be done with computer targeting systems. Humans will not have a big task on the spaceship. I imagine repair and ensuring the AI/computer won't go rogue will be the main task of these crew members. Beyond that will be troop and logistical transport. Realistic spacebattles can easily be incredibly intense. Crew ...


97

As far as we know IRL, mech fights will not be good way to wage a war, so this answer is meant more as an excuse for the writer, not the actual reasons. That said... Limited ammo. Sword would weight about the same as two, three rockets? But with it, you could destroy more than three enemy mechs, if you are a good enough pilot. This does not make sense if ...


96

Put the food into cryosleep as well. If the people don't degrade, neither will the food.


96

He could start a cult religion With a near-perfect understanding of human psychology, he should have no trouble convincing people to give him their money. With careful maneuvering and timing, he could build up his organization to have significant economic and legal clout, protecting it from authorities that might try to shut it down. In addition, he has ...


96

We think we are advanced but still barely able to send devices within the gravitational influence of our star. We managed to send living samples of our species on our satellite, but just for few days and then we discarded the blueprints. Now an alien race is visiting us, showing that they are able to mass travel trhough space. I would say that the mere fact ...


93

Bob could end the war. Keep in mind that ending the war is different from winning the war. Also remember that the enemy of my enemy is my friend. All he has to do is fly into the middle of a space battle and let fighters from each side blast away at his ship for a while. As their most powerful weapons don't even damage his ship's paint job, he can ...


93

There's very little reason to have glowing eyes in the visible spectrum. However, in the IR spectrum, we do see them: The idea is that most IR cameras are not as sensitive as the human eye, so they need extra illumination to see anything. Putting the IR illumination right next to the camera proves to be very effective -- there are no shadows in the scene ...


93

What about bicycles? They're quiet, they don't require finding fuel, they're maneuverable, they're easy to repair even for laymen, they can be used in multiple different types of terrain, and they're fast enough to outrun a traditional zombie hoard.


92

Unfortunately no, you can't replace an element of the periodic table because the ordering of the elements on the periodic table are based on the number protons found in the nucleus of the atom. However, you may have another option. Carbon has 6 protons, always. Give it an extra neutron? Still carbon. Give it an extra electron? Still carbon. Give it an ...


91

Just calling it Knowles Syndrome would probably be just fine and consistent with current practice. But if you really want to go with sudden-onset acute hyperthermia, feel free.


90

If you have orbital superiority, small teams are the only ground forces worth deploying. You can drop a nuke from orbit and incinerate a city. You can drop 'rods from God' to precisely annihilate bunkers with the raw power of kinetic energy. You can drop precision-guided munitions, turn sands to glass with lasers, or wipe out an army with a railgun shell. ...


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