It's not too expensive.
The defense budget of the USA is 840 billion dollars. That's not too expensive.
The reason it's not being done is there's no money to be made.
Profit first, survival of the species second.
this post was submitted on 28 Oct 2024
79 points (95.4% liked)
No Stupid Questions
35647 readers
986 users here now
No such thing. Ask away!
!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.
The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:
Rules (interactive)
Rule 1- All posts must be legitimate questions. All post titles must include a question.
All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.
Rule 2- Your question subject cannot be illegal or NSFW material.
Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.
Rule 3- Do not seek mental, medical and professional help here.
Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.
Rule 4- No self promotion or upvote-farming of any kind.
That's it.
Rule 5- No baiting or sealioning or promoting an agenda.
Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.
Rule 6- Regarding META posts and joke questions.
Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.
On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.
If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.
Rule 7- You can't intentionally annoy, mock, or harass other members.
If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.
Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.
Rule 8- All comments should try to stay relevant to their parent content.
Rule 9- Reposts from other platforms are not allowed.
Let everyone have their own content.
Rule 10- Majority of bots aren't allowed to participate here.
Credits
Our breathtaking icon was bestowed upon us by @Cevilia!
The greatest banner of all time: by @TheOneWithTheHair!
founded 1 year ago
MODERATORS
Launching stuff into the sun takes a shitton of delta-V. We should just launch it into the moon.
sun gets rid of it tho
But then all the fumes won't just pollute the earth they will pollute the solar system, think of the animals on mercury, have a heart
Even if you could do this, it would be more effective to just do the "collect all the garbage" part and then store it in a heavily lined container forever.
Orbital mechanics makes launching stuff at the sun extremely difficult.
The earth has a gigantic a molten layer under our feet, and we couldn't even dump it down there. Too expensive and difficult.
Long term, my guess is engineered super bacteria and/or robotics may clean up the trash in the future, if we don't extinct ourselves first.
Prohibitively expensive.
First the cleanup is gonna take forever and cost billions.
Then building a rocket is gonna be even more billions and time.
And then actually shooting something into the sun is harder than just blasting it out of the solar system.
You could save a bit by shooting it into another star, and not our own. But you still gotta clean it up and make a rocket. I don't think we have even launched a rocket that big or heavy ever. It may require multiple rockets. Planet Express barely was able to make it happen, and they are in the future, only needed to clean NYC, and is also from a cartoon.
And then actually shooting something into the sun is harder than just blasting it out of the solar system.
This is fun to play with: https://trinket.io/embed/glowscript/6642756b52?toggleCode=true&start=result
And then actually shooting something into the sun is harder than just blasting it out of the solar system.
Why is this true? Wouldn`t gravity do most of the work if we just kinda shove it in that direction?
Because if you launch something from Earth, you inherit the Earth's orbital speed around the Sun. At that point, whatever you launched will just continue to orbit the Sun. It takes less energy to accelerate to a solar system exit trajectory than it does to scrub off all of the excess velocity and end up on a trajectory that intersects the Sun.
But does it matter what speed the garbage is going at when it hits the sun?
No, but it's going too fast sideways. It would miss the sun. You need to slow it down by the same apeed that Earth is moving, stopping its sideways motion and letting it drop into the sun.
Edit: I like making diagrams. Red is the trajectory you're expecting. Blue is the Earth's motion, which adds to that red arrow. Purple is the resulting actual movement of the trash rocket.
But do you need to slow it down all the way? Can't you just slow it down enough to get the ball in an elliptical orbit where the trash ball gets very close to the ball of plasma?
Space is big. It's so big that our tiny ape brains have a hard time conceiving of how big it is. The sun is actually (despite it's size) a relatively small target and is very very far away. Now the more delta-V you burn to slow the trash down the smaller its orbit around the sun will be. But that orbit starts enormous. So to get that purple line near the sun you do need to slow down almost the whole way, just to get it close.
The problem is slowing it down to any speed that would end up with it dropping into the sun is going to take more effort and be more difficult than firing it out of the solar system. It isn’t practical.
Yes and no. The gravity of the sun will attract the rocket, but there are other things out in space besides the sun.
The problem then is other planets will start whipping the garbage rocket around who knows where. Could even come back around and smash into earth. Same problem with the sun, actually. It's quite hard to hit something that's that big when we're this far away. If you miss even a fraction of a decimal of a degree, the trash rocket will swing around and you're back to planetary hot potato.
It's easier to sling the rocket past the south or north pole at a right angle to the solar plane. Up or down it'll either keep going till it's another suns problem or it joins the Oort cloud, which is kinda like a giant trash dump for everything that didn't make it into our solar system when the sun formed.
LEELA
Should we really be celebrating? I mean,
what if the second garbage ball returns
to Earth like the first one did?
FRY
Who cares? That won't be for hundreds
of years.
FARNSWORTH
Exactly! It's none of our concern.
FRY
That's the 20th century spirit!Nailed all the points.
It costs about $10,000 US to get a kilo of payload as far as Low Earth Orbit. I'm not sure this is going to scale up.
And the one time the rocket goes kablooey on its way up, everyone down the flight path will get a shower of used hypodermic needles, disposable vapes, and old appliances.
i always say this about nuclear waste and usually i get punched in the face.
The problem with launching nuclear waste with a rocket is that you're shooting an enormous dirty bomb and hoping it will make it out of the atmosphere. One single incident and we've got an environmental disaster of unprecedented scale and we'll be lucky if the fallout is restricted to a single continent.
I think it's a great idea, the rest of these commenters are being scaredy cats who love garbage and want to keep it close
I also have this incredibly stupid idea to build a very long pipe that goes all the way outside earth's gravity pull, then launch all the garbage through it with a mechanism similar to a railgun. It doesn't have to be thrown directly at the sun, just enough to launch stuff out of orbit.
There is no such thing as "outside earth's gravity pull". You can compensate with "centrifugal" force but you'll need to position the point of mass in geostationary orbit and hang the rest of the structure off it (idea known as space elevator). However, there is no material whose tensile strength will support its own weight at this length. Steel cables max out at a few hundred meters at surface gravity.
That's basically a space elevator (though space elevators are shorter and held up by centripetal forces). Unfortunately they're quite outside our technological capabilities at the moment.
This is an incredibly stupid question.
OP:
view more: next ›