*blocks your space exploration

*blocks your space exploration

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Other urls found in this thread:

youtube.com/watch?v=PtyySlBW6kk
en.wikipedia.org/wiki/Woodward_effect
twitter.com/NSFWRedditGif

>Wh*te sister fucking Sup Forums hillbillies don't know what this equation is.

i think i watched a vsauce vid about this
something like galaxies moving at an accelerating pace that we could never catch up to in space ships unless worm holes

Tsiolkovsky rocket equation
sage

Nigger I'm in engineering and I don't know what that shit is. Granted I'm in Civil so i don't need to know space travel shit. The equation is basic but I don't know what it's used for.

I posted this exact image in a space thread today. Get some creativity.
tl;dr: How fast you go depends only on how fast your exhaust goes, and how much of your mass is fuel. That ln makes things a bitch. This is important because everything with orbits comes down to how fast you're going.

Civil engineering.. it's like being the nerd reject in the nerd reject group

em drive

So invent wormholes. Stupid.

In my country your are the joke of every university, unemployed and lazy
>you have the most basic and lightest form of calculus and algebra

t. masters in engineering physics

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It means a rocket goes faster as it burns fuel and loses mass. I don't know what OP's point is though.

We're kinda the butt end of the joke in my university but Industrial truly has that place reserved.
Right now my dynamics class is the same as my buddy in Mechanical, and we're getting into shit that structures never got into.
Remember, buildings determine life and death... See Flordia. Without good CEs shit hits the fan.

Yeah I could tell that ln was bad news.

heh, that's why we use robots, son.

A reject of a reject is normal right? Kidding, but part of the reason I chose civil is that people are more friendly and better with people. So many shitskins in other fields too. I've heard ME (and probably CompE) is full of Indians.

It's fake.

It's the reason space travel is so expensive. You need fuel to push the fuel, which means you need fuel to push that fuel, and so on.

Were doing away with this equation by next week, and we inform a physicist of a new equation

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I've always kinda wondered why space travel shouldn't be faster since you could (in theory) get more and more velocity without any resistance, but the fact that you need fuel to push fuel makes me realize how difficult that is.
Makes those solar sailers seem slightly less faggy.

delta V formula kek
another one is deltaV = g * ISP * Mi/Mf
methinks

>orbital velocity is measured in kilometers per second
no shit sherlock

We have changed our position after consultation with the BOG overmind. The equation stands.

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bscly all space is expanding away from all other space (remember your balloon analogies), and so the distance between us and other shit is going up at greater than the speed of light. But none of the actual matter anywhere is moving faster than light.
wibbly wobbly timey wimey stuff.

Where are you even going with this?

so apparently nothing is moving from our frame of reference
perfect, then how did we "discover" this?

We are warping in a psycho-kinetic kill team to your point in the timeline.

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things in space already go stupid fast
thats my point

*blocks your space exploration*

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Why is your ID like a Craigslist post in m4m? Are you some sort of faggot?
The Woodward effect doesn't break physical law and could be utilized to create a propellant free thrust.

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>hymHOT4m
indeed it is a faggy craigslist username, oy vey, i leave now

>non
>rocket
>space launch
>if you don't have to carry your fuel you don't have to account for fuel weight in your equation
Fucking (((Elon Musk))).

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But things can always go faster. Until it becomes REALLY REALLY hard of course.

I can't stop checking IDs after the legendary JwwwTuBe get

I took Organic and Biochemistry courses and I don't know what this shit is. Fucking mathfags thinking academic nonsense actually matters outside their undergrad coursework.

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we observed nearer parts of the universe all moving apart uniformly. So instead of saying that we're exactly in the middle and the things that are further away are moving faster away (if they were, we'd observe different gravitational behaviours. Instead all we have is the doppler effect from the expansion), we decided that everything in the universe is using the same laws of physics, and from everywhere else they'd see the same expansion, and so expansion is everywhere and we're just limited to seeing our little corner, just like everywhere else

Same dude, then they get all pissy when your math equations are easier than theirs.

>Moving yourself through space
>Not just moving space around you
Dr. Farnsworth was right all along

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fucking brit posting your technobabble on Sup Forums
leave

Even if the hypothesis were proven to be correct, which it never will, it can not produce more thrust than an ionic drive. Let that sink in for a bit of how useless the contraption it is. EM drive has never created consistent results and all observed thrust can be explained by thermal effects.

still doesn't break laws of physics tho, its just a really inefficent propellant-less thruster

>Tunnels through roadblock.

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>He doesn't trascends the laws of nature
How many astral forms do you have, negro?

This relies on exotic matter with negative mass. Humans won't be developing anything like this for a long time if it's even possible.

>*blocks your space exploration
>let me just ignore the fact we can optimize v_e and that we don't need (and can't even have because human bodies and shiet) high delta(v) to travel far.

r u retarded

>breaks roadblock into tiny pieces

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no, your grammar is though

Only if you use chemical rockets to get into orbit.

>you seem smart
how do rockets work in a vacuum?

>Stupid nigger can't math
>I guess it's the same for everybody
The rocket equation is 1st grade physics shit.

what about nuclear, ion or plasma propulsion

1) space elevators
2) rail guns
3) orbital rings
4) sky hooks
5) building things in space

It's a major problem now, and incredibly costly, but not so much that it will be an impenetrable barrier to our progress through space.

Newton's third law.

because of the exact same equation op posted.

more technobabble

Not if I live 2000 years.

Agreed. I am a mechanical engineer from Texas A&M and can confirm that there are plenty of shitskins. Every civil engineer that I have worked with is white.

That's why getting our shit on the moon and asteroids is the way to go. Just mine them and build all what we need from them and let rockets handle human transportation from Earth to orbit where the stations are.

Yeah but that's still fucking huge dawg. If we're talking interstellar travel a hybrid approach seems natural. In deep space any thrust without consuming fuel could go a long way. Woodward effect is a bit different from Em Drive in that it could actually work.

>Transcends.

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how many transmissions do you fix a day

everyone ITT except for the leaf and belgian need to watch more Isaac Arthur

Fuel doesn't really matter.

We are locked to sub-lightspeed flight unless we are completely wrong about physics and thus everything is basically dozens of thousands of years away.

We can only hope to explore space when we evolve so much as a life form that we are not constrained by our average 80 years light span as a measure of time and thousands of years can be overlooked as we now look at a single year.

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I'm at Purdue now, its challenging but I'm enjoying it.
That's part of the reason I chose civil engineering tho. Most companies are small or at least have small offices full of good people who work on the community. It's the kind of job I want.

youtube.com/watch?v=PtyySlBW6kk

just do this

>using \nu for a v
Disgusting.

We can at least explore our galaxy cluster. The light speed barrier can't stop us from doing that, and even then we'll have millions of years possibly with a species numbering well past the quadrillions +unthinkable AI and genetic engineering to find a way to break the light speed barrier. Don't give up hope and don't worry too much about a problem that we have thousands of generations to solve.

conservation of momentum

no way OP, I was in AP Physics too!

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Sometimes I'm worried we'll run out of resources before we can achieve something like this. Will we have thousands of generations? The world is already pretty full, and what if there's another dark age?

>it can not produce more thrust than an ionic drive
that is not the point everyone was excited about. a propellant-less engine would be able to function indefinitely, you don't need to have good thrust if you can have it on for a week straight. ionic drives, although very efficient, are constrained by their reliance on fuel. yes, a xenon tank might last literal days worth of thrust time, but it doesn't even compete with actual infinite delta-v.

It's empasized v in latex.

>mechanical engineers are mechanics
what a faggot

Well it looks like shit.

thats the joke

>a propellant-less engine would be able to function indefinitely,
We can already do that in principle, just use a solar-powered laser. Don't need some madeup BS physics for that.

This is correct. The world is limited by all means and we are burning through the resources pretty fast.

We are also not nearly enough ready for a mass extinction event.

In truth, we don't even know how big of a step we need to take to properly start space exploration and it might be around the corner, but it also just might be a thousand years away, in which case our odds of surviving grow dimmer.

It's the same. Ion and nuclear propulsion still eject some matter. What they do is eject very little mass, but with an enormous v_e (as you can see in OP's equation) to get a decent acceleration.

So their are, like, very optimized rockets.

Also, you can't use them in order to get from ground to orbit. They are only usefull once you're in space. Classical rockets are needed in order to lift our asses.

Well the dark age ended and any future dark age will end as well. We've progressed incredibly consistently since the last ice age. There are hypothetical that could set us back but I'm optimistic. We're on the verge of asteroid mining and an energy revolution via solar and fusion energy. I see no reason to be pessimistic.

>photons don't count as propellant because they don't have mass

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>tfw the technology exists to build nuclear fusion spacecraft propulsion systems for potential travel at up to 1/10 the speed of light
>relatively easy to build
>illegal now because of shitty cold war treaty

The technology used for making nuclear explosives should be allowed to be put to other uses than warfare.

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yes, but its retarded to point to a formula and say "thats why space is hard" when really its a point of TWR and cost

I'm black you racist

tru, nuclear reactors really would help in space

iiiiii'mmm black ya'll, i'm black ya'll, i'm blackity bland and i'm black ya'll

black* fuck

Burning through ressources? What exactly do you mean by this? Nothing we use is gone forever it merely changes form. The metals we use can ultimately be recycled and yeah it's not efficient to reform oil and gas for energy usage but we have other forms of energy anyways.

If we ran out of oil and gas and coal tomorrow all that would happen would be a dying out of niggers anyways. High trust, high IQ societies could live off nuclear and hydro power and those aren't going anywhere.

Now what do you mean by a mass extinction event? Nuclear holocaust or a massive asteroid? We're almost at the point where we could survive that. As soon as we have 500 people in space neither of those can actually cause a real extinction of humans and that's not too far off. A massive disease? Diseases don't generally kill 100% of a species. A plague could thin our numbers but it won't wipe us out.

>The light speed barrier
There is no barrier. When you travel at light speed time dilates and you age very slowly (in your frame of reference). In fact when you are at 99.999% at c, you pretty much don't age or age very very slowly so that means you can go almost anywhere in the universe.

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If photons count as propellant, in what way is the em drive propellant-less?

So many digits in this thread.

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How the fuck could you not know what delta V is?

For fucks sake this is baby shit you learn in entry level video games like Kerbal Fuel Air Bomb Simulator.

near lightspeed travel is a complete curse
you can travel millions of years into the future and not even realize that everyone you know and love is dead at the blink of an eye (from your perspective)

>kerbal thermobaric bomb simulator
kek

I'm hyped for fusion energy, I just wish fission wasn't so barred down like it is today. There's so much potential for it to replace oil at least but its so heavily regulated.
I'm not super pessimistic but I try to be realistic. Societal collapse is always a possibility

Woodward effect. Not Em drive.
en.wikipedia.org/wiki/Woodward_effect

It being an on-board propellant is sort of implied, considering that's what the rocket equation is based on. You surpass the rocket equation if you're getting propelled by off board, stationary lazers.

>the thing we need is mass but not momentum

>The world is already pretty full
no, not really
we waste 1/3 of the food we produce. and that is not even mentioning overeating and inefficient food processing.
with Orwellian rationing practices, efficient farming techniques such as vertical hydroponic farming and off-shore fish farming, and efficient ways to give products long shelf life in a waste-less industrial process I can see this world easily feeding 30 to 40 billion people without completely fucking up the environment.
It would taste like shit, but we would be alive without the need of that pesky ethnic cleansing.
think nutrient soup and soylent green.

Reminder that the organizer of this protest was a jew.

Yes, but time will only slow down for you, so you won't be able to return home as it'll be far in the future when you get back.
Also, there are other practical obstacles, like the fact that microscopic interstellar dust would fuck your shit up at those velocities. Not to mention the acceleration difficulties involved - if you accelerated at 1g the entire time, it would take a long time to speed up and a long time to slow down. And the human body can't withstand much more than that on a long-term basis.