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Fission does happen naturally: https://en.wikipedia.org/wiki/Natural_nuclear_fission_reactorIt requires specific actions and conditions do so and none of those conditions have ever been met since since the formation of the earth 4.5 billion years ago, and never will, nuclear fission is extremely difficult which is why nuclear bombs are extremely wasteful only a handful of material in a nuclear bomb actually has a fission reaction.
To add a bit to what you said.However while both nuclear bombs and a nuclear plant have nuclear fission in common, there are differences for example nuclear bombs compact the fissionable material as where in a uranium core rod isn't compacted the casing, the rods even water slow down the neutron reaction with the uranium nucleus, in a controlled chain reaction you will never get a nuclear bomb type fission reaction as the fuel rods have been designed as such which simply doesn't allow for a runaway fission reaction like that.
What I meant was you won't get an actual nuclear explosion naturally, fission sure it is hot and under a lot of pressure however the ore isn't exactly clean and concentrated enough and with the radioactive decay, much of it has already depleted.Fission does happen naturally: https://en.wikipedia.org/wiki/Natural_nuclear_fission_reactor
To add a bit to what you said.
It really depends on the design of the bomb. The two very simplest are implosion (platonium) and gun type. Plutonium requires compaction that is so precise that in WW2 they tested it (trinity) because they weren't sure it would work. Uranium bombs (gun type) require 90+% enriched uranium. Thermonuclear bombs are so complex it isn't even worth talking about.
Nuclear bombs are a consequence of exponential nuclear fission generating enormous amounts of energy. The reason that a nuclear bomb is so hard to build is even simpler than rods or anything like that.
When you release a bunch of energy in a small space, it causes things to blow apart. Everyone should know this, we see this everywhere. With a nuclear bomb they need it to fission as quickly as possible before the energy rips it apart. You keep it together as long as possible to increase the amount of energy. To do that you need the reaction to happen insanely quickly. If the reaction isn't fast enough you get an explosion that is small, like a chemical explosion, smaller than Chernobyl explosion (Chernobyl was a steam explosion, not a nuclear explosion)
Nuclear reactors can't explode because
a) Uranium is 5% enriched at most, far lower than the 90% required for the simplest type of gun type bomb. (other designs aren't worth discussing; too complex to happen in nature)
b) Even if you have 90+% enriched uranium, next you need to surround the fuel in a neutron reflector that is perfectly shaped so it reflects perfectly (ie. tight fit). And you need a way to push the fuel into that reflector quickly so that it doesn't blow itself apart too quickly (ie. small explosion akin to chemical explosion). All of this isn't by chance. The simplest design uses a uranium slug that is shot, like a bullet, down a pipe into a neutron reflector. They are perfect shaped to each other. The bullet and reflector are machined perfectly to each other.
The design above is the simplest. Any other designs are so complex that most countries like Iran aren't yet even able to build them. It can't happen by chance. That is why it took Manhattan project years to do the math, design, etc. on the second simplest design they weren't sure was going to work. (They knew the simple uranium 90+% would work)
So overall getting this to happen in a nuclear reactor is like saying you are scared a piece of metal will turn into a car and run you over. The idea is so ludicrous, but explaining it to a layman, even in the simple terms above just goes over the head of 99% of our population.
As such the myth of nuclear like explosion from a nuclear reactor persists.
The Flash begs to differ /sWell with a ship that size you will have artificial gravity, so the g forces would be insane, even at half the speed of light would probably be enough to liquefy the human body even if you need that much. can't remember the exact science behind it, but not dampening the forces experienced will kill quickly the closer you travel to the speed of light the more mass you have the more energy you need to expend the more mass you will gain whether with or without gravity isnt good the vibration of wave lengths and those interactions isn't good either.
either way you will never move faster then the speed of light or close to it unless you can solve the problem of gaining mass while travelling at those speeds whether with or without gravity.
Basically imagine you are in space inside a empty can there is no appreciable gravity however as you move closer to the speed of light the more mass the can will gain creating artificial gravity these gravitational forces will give you more mass and you will probably as a result be pulled to the middle of the can and be squashed into a little ball and eventually as the mass increases the closer you move to speed of light be squashed into a little puddle of nothingness, so whether you have gravity at the start or not you will eventually gain so much mass you will die.Whether you slowly increase to the speed of light or instantly the faster you travel the more energy you need to expend and mass you will gain.
tldr: special theory of relatively says you are screwed should you ever wish you travel at the speed of light or faster without countering the forces. Essentially you will need to cancel out gravity entirely and that isn't possible, basically the science behind the big ship in the interstellar movie.Take gravity out of the equation, if you don't have gravity you won't gain mass and you won't need to expend energy you will need to break or bend the special theory of relatively.
The odds been struck by lightning is 1 in 500 000, odds been struck while drinking an energy drink probably 1 in 5 million, chances of gaining super powers 1 in 500 trillion.The Flash begs to differ /s
My money is on being struck by lightning whilst drinking an energy drink.
The universe is not required to be in perfect harmony with human ambition
Re faster than light travel:
- Carl Sagan
Ditto for clean energy. People something think the universe needs to play by our rules. I don't think they fully appreciate that there is nothing that requires the universe to play our game. We are playing its game.
We'll never see the whole universe because it is expanding, by all accounts faster than light can travel the same distance.
The only observable force we don't yet know much about is gravity and we've observed even it moves at the speed of light. Pretty compelling evidence that you will never travel faster than that speed.
Wormholes are IMO like warp drives, nice plot device but ultimately with everything we've observed, especially in the early 21st century, it doesn't make sense that it exists.
If think I’m wrong, tell me why. I’m open to discussion if you are
Although thread has already been derailed by sci-if fantasy
Let's first t survive for 5 years as africa
You were told you were wrong people chipped in to tell you, you are wrong with simple facts, there was no need for him to post more.
scifi what now? It's either scifi or fantasy not both.
Science is rooted in science fiction, while quite a few science fiction ideas have become a reality, not every thing would be a reality, but the fact that several devices deemed absurd have come to pass, it is definitely not some thing to frown on, as science fiction or speculative science has had a greater influence on science then you would like to believe.
So have you bought a bit of land around Chernobyl to relocate your family to?
You guys watch too much syte and/or have been subjected to too many DSTV repeats! Nvm, #Me2Well that is how long the sun will last more or less before that nuclear engine runs out of fuel however long before that we will be dead, I would give it another million years before life as we know ends. We are overdue for quite a few things, yellow stone, san andreas fault, massive asteroids, sharknados at least that is what the movies promises.
Honestly the biggest issue is probably going to be sun as it expands and starts heating up. Additionally the moon also helps drive the earths magnetic fields and that is slowly spinning away from us as it does so will the magnetic sphere grow weaker and have less protection from solar flares ect.
We will be long dead before we are able to advance our sciences enough.
Oi! A lot of marketing went into selling it
Julius & Co?
You guys watch too much syte and/or have been subjected to too many DSTV repeats! Nvm, #Me2