This is part of a side thing, kajiu reality is meant to look at the practicality of the kajiu world and see if it has any possibility of happening in reality.
Kajiu reality: can mechs such as Mechagodzilla one day be reality ?
Who doesn’t like giant robots, if you don’t, then you probably eat your cereal weird and that’s not okay.
Question of the day, are mechs possible? Say you are Anne souring engineer who wants to build a giant robot for protection agaisnt the monsters or use in your plan for world domination, or…just be a weirdo with a human robot that changes sizes. This thought exercise will show if such things are possible and it’s outcome.
What Material do you need: assuming you have two things already to be able to build a mech, Land and money the next steps naturally getting stuff, if you have neither land or money then you should probably settle for a pet lizard that you will name buster as your dreams and aspirations will go bust in seconds
For those who have land and money, welcome to the 1%, the millennials want your money.
your giant robot needs protection from the barbarians outside the gate. What what do you make it with? With with our first step we have problems already.
Weight and durability
Depending if you are wanting either a Jet Jaguar or a Mogura, or a bride if your weird and desperate, the materials uses come with trade offs. The more armor the heavier your mech becomes, the lighter it is, the less durable it is. Finding a balance or preference is key to what you are building , but the trade offs are go hand in hand.
So what material do you need.
What about steel ?
Steel is strong and is inside all skyscrapers since it’s inception, but there also in tall buildings because it’s heavy. Steel would not be proportional to its weight and durability.
tungsten ? It is the strongest of natural earth metals, it’s also heavy and rare as hell to find, not ideal for a mech
Chromium? Metal thats is a key to what makes stainless steel possible. It’s strong but the more you mold it, the less strong the metal becomes, making a mech with it would be a pain in the ass and would likely not take a tank shell.
What about Chobham armour ? For those who have no idea what this is, it’s the armor that is used by modern western Tanks such as the Abrams, challenger, and the Leopard 2 tank. It’s hard and is able to resist light to medium projectiles without lossing its strength. Problem is that high penetrating projectiles can make the armour loss strength. Also the material itself is a bit of a pain, for effective use of the armor, it must be made by means of panels, it also is a daily hard metal to even shape at all.This is why western tanks have slanted turrents. Not ideal for a mech
Beryllium ? Here is a plausible choice, sting and durable…so what’s the catch? The metal is toxic to humans without protections. Able to corrode human skin and dust can be deadly when inhaled. Better provide your employees with protection or your facing lawsuits which you will lose. Protections do cost additional money…something which you would need in other areas such as energy and weapons
Titanium ? An alternative, it’s a carbon reinforced plastic strong and durable, and lightweight! But it’s plastic and plastic does have a low melting point. Not good against lasers and monsters breathing nuclear fire.
Despite the metals presented, each option isn’t ideal. The trade offs and the limitations of the
Metals kinda damper the idea that a perfect metal would make your mech, but science has given us new materials and alloys which have solved the problems and demands of humanity, issue here is…well your metal hasn’t been invented yet :(
Energy sources: triple A batteries from the local market isn’t enough to power your mech, you need some good stuff to power your Tin can, what what all is out there?
Sadly here is probably the biggest road block to mechs. Energy sources we have today while provide power, are just not great enough to power your mech
Coal: abundent but you need a lot just to do a test run on your mech and storing coal takes up space.
Oil: you need a lot of oil and that won’t sit well with nations who are dependent on oil to fuel their economies. A mech program isn’t where oil is going
Nuclear: a better alternative that provides power, but you need a big fission or fusion reaction. And a meltdown would….kinda suck.
Solar: clean but your mech would be covered in panels and still that isn’t enough to power your mech. Solar in reality even has this problem. Then you are limited with the time of day you use the mech, is a monster attacking at night? Tough luck, your mech isn’t going anywhere.
Wind: clean…but you need a continent of wind turbines to have some power to your mech, it would cost alot, maintaining it is a pain in the ass, and wind power is capable of beheading birds and causing an ecological problem, and you will be blamed for that.
What we have now sucks, but the future has potential on the discovery of new energy sources…it just like I mentioned in future metals…it hasn’t been invented yet.
Problems with size and movement
Ever notice that the bigger dinosaurs are the slower they are to walk. I never seen a dinosaur but I assume that everyone figures that larger animals tend to move slow. Gravity is at play here. Earth is pulling objects to its surface and the bigger things are the more gravity pulls you down. To be able to resist gravity you must have a strong bone structure to be able to walk. But you will move slow. Mechs will have this issue the bigger they are. Gravity naturally will want to pull things down. Metal strength doesn’t help against gravity’s strength,walking alone dragging weight with it will not help the problem as well, speaking of walking…
ever seen videos of walking robots and how awkward it is to walk. It’s easy for humans to do naturally, but recreating natural movement is bards. Humans have made robots capable of high-order mathematical calculations, of driving over Mars and communicating wirelessly over long distances…but what are you going to do when your mech falls over. Movement itself is an advance ability of life forms and we don’t have advanced computers to accurately make movement flow as natural. You would be better off putting your mech on treads like a tank. Just prey a giant monster doesn’t knock it over.
What about flight?….
Funny joke but your heavy ass mech isn’t flying worth shit if it can’t even handle gravity standing idle. Lifting the mech by plane won’t work since there isn’t a strong enough plane to do that . And internal flight systems in a mech would require a lot of fuel just to have it lift several feet off the ground. Space rockets use a shit ton of fuel to go to space…and that’s just for a rocket.
Weapons simple and straightforward: here’s the fun part, arming your bad boy or girl ( don’t want to be sexist some girl robots kick ass ). The easiest to obtain are conventional weapons. Machine guns, rockets but what about some other cool stuff. The biggest gun constructed was the Schwerer Gustav, a Nazi railway gun capable of firing 7 ton shells…damn. Here the Wikipedia article of you want to see it. https://en.m.wikipedia.org/wiki/Schwerer_Gustav
What about lasers? Lasers require a lot of energy to be effective and can cause overheating and our current laser weapons are bulky, though the U.S Navy has a laser turret in service that will blow up shit, that’s cool…but it’s good at blowing up tiny or wooden boats. :(
What about WMDs such a nuclear weapons and chemical stuff…I will get back to you on that when your read further…
Drones ? If you can support having a drone bay from your mech you can with ease these days.
Okay, so you probably found a solution to the problems mentioned above now you have a mech time to arm it! The reality of the situation is this, you built a walking death robot that’s meant to kill monsters and be resistant. While it maybe designed to stop monsters, your not going to convince paranoid people and politicians that your mech is a symbol for peace, it’s like saying the nuclear missiles in the silos are not going to be used agaisnt humans at all and that they are for peace.
Here’s the deal, you have a weaponized robot capable of mass destruction. And here’s the thing about weapons of mass destruction or WMDs, they are illegal to construct.
A WMD is defined by U.S. law as any of the following:
A destructive device, such as an explosive or incendiary bomb, rocket, or grenade;
A weapon that is designed to cause death or serious injury through toxic or poisonous chemicals;
A weapon that contains a biological agent or toxin; or
A weapon that is designed to release dangerous levels of radiation or radioactivity.
The UN also has classifications on WMDs https://unrcpd.org/wmd/
Produce in a single moment an enormous destructive effect capable to kill millions of civilians, jeopardize the natural environment, and fundamentally alter the lives of future generations through their catastrophic effects;
Cause death or serious injury of people through toxic or poisonous chemicals;
Disseminate disease-causing organisms or toxins to harm or kill humans, animals or plants;
Deliver nuclear explosive devices, chemical, biological or toxin agents to use them for hostile purposes or in armed conflict.
If your mech can do any of this, then Congrats, you violated the International law and are now a able to be persuaded for war crimes. Your government will either seize your mech or in the case a government built the mech…well it can’t be used by a single country or you have an arms race, and that will be your fault. Even with Monsters running around, international law and government control come first and will have say. Why, simple it’s all about control, both processing and maintaining the status quo of peace, you building a mech ruins that.
As cool as mechs are…the limitations of technology as it is and the natural and governing limitations also hamper with the idea that people would have these things, but is it possible in the future? It can be for sure, problem is, what would you use it for? In reality we don’t have monsters, so why build a giant mech. You can’t use it in war, it’s a big fat target for missles and it violated international law. The most likely of mechs are ones that have the purpose of supporting ground infantry units. Mechs that are not kajiu size, small enough to be practical, and able to pack a punch with mobility, the bigger it is the harder it is to power and to use.
So is building a mech possible?
Kinda….but not in the way in which you want to make it.
This was a blast to research and share and I hope to do more of these in the future as reality and things in kajiu movies kinda have a science behind it. Got any burning questions that may need answering if it can happen, ask away