[ / / / / / / / / / / / / / ] [ dir / ask / asmr / hikki / madchan / rad / radcorp / sonyeon / strek ][Options][ watchlist ]

/tech/ - Technology

You can now write text to your AI-generated image at https://aiproto.com It is currently free to use for Proto members.
Name
Email
Subject
Comment *
File
Select/drop/paste files here
* = required field[▶ Show post options & limits]
Confused? See the FAQ.
Expand all images

File (hide): 547b947143de09c⋯.png (887.86 KB, 1280x688, 80:43, spaceship.png) (h) (u)

[–]

 No.802637>>802793 [Watch Thread][Show All Posts]

lets have a scientific thread going on on /tech/.

what do you guy about anti-gravity? is it possible?.

technically, gravity isn't a force but a curvature in space time itself.

anti-gravity would mean a "bump" in space time.

the implication of such "bump" existing are huge particularly for the general relativity.

i don't think we'll ever see a floating space ship.

what do you guys think ?

 No.802646

what do you guys think ?

This thread is shit and OP is faggot.


 No.802648>>802653 >>802962

Cool, now I can also larp as theoretical physicist.

Under general relativity, anti-gravity is impossible except under contrived circumstances. So there is that. As far as I am aware of force of gravity is not yet understood well. What exactly causes it is a mystery. Hopefully LHC will find something new soon along with physicists working on supersymmetry. Closest thing to creating floating space ship would be building over sized quadcopter. There are still so many things we know nothing about.


 No.802649>>802653 >>802662 >>802824 >>802962

Gravity is not yet well understood. To give an example: we don't actually know the speed of gravity (that is, the speed at which gravitational fields change with the movement of bodies in arbitrary space). We have maths which constrains the possibilities, and are fairly certain it is not the speed of light, but don't actually know gravity's speed, which is interesting.

If you're talking about playing with base concepts of physics, I suppose it helps to start at the easy bit: to look at where they're already violated. One example is matter ejection streams from black holes. These streams travel faster than the speed of light, and we don't know how. This is sort of a big deal, and indicates one of two possibilities: our base concepts of physics are flawed, or something awful is going on around black holes to give the indication that matter is being ejected from them at superluminal speeds.


 No.802653>>802665

>>802648

>What exactly causes it is a mystery

if you by "causes it" you mean its vector then its Graviton, its still a theoretical particle and the LHC was built mostly to find it.

>>802649

> One example is matter ejection streams from black holes. These streams travel faster than the speed of light

where did you get that? sauce pls


 No.802662>>802665 >>802856

>>802649

>These streams travel faster than the speed of light, and we don't know how.

They only appear to move faster than light. And/or are only traveling faster than light outside of a vacuum. Why the fuck do people try so hard to find exceptions to this one simple fundamental law of the universe? Light is a constant and you'd need infinite energy to accelerate to the speed of a constant. It's not possible. For long distance space travel going even near the speed of light won't be necessary anyways thanks to the fact time dilation is very much real. Because entropy has a maximum possible speed, the speed of light, so the closer you get to the max speed of entropy the less it has an effect in you and the less you can even experience time.


 No.802665>>802856

>>802653

It's been around for a few decades, and all theories are predicated on assuming the matter is simply moving at less than the speed of light and working backwards using special relativity and making assumptions about beam orientation based on that, with less consideration on the visible information.

It's handwaved away by postulation that the beams are simply heading in a different direction while still appearing parallel to the observing device (angled towards or away from the observer), and people suggest that we're seeing the matter's transverse velocity, discounting the observed information.

So scientists wish to suggest that matter is heading diagonally away (or towards) from us, and so it appears to be moving faster as a result. This of course is plausible, but one would counter that this cannot be the case 100% of the time, and also that it surely would have been reflected in the raw data first, which it wasn't.

>>802662

It's an example of scientific conservatism. People gesture to special relativity and discount visual data.


 No.802793>>802856

>>802637 (OP)

>anti-gravity would mean a "bump" in space time.

My physics knowledge is pretty limited, but I think you got stuck in a metaphor here. The way I understand it the curvature affects movement because it changes the shape of a straight line. An orbit around the earth is a straight line that closes in on itself because it's in a hole. Without gravity, the moon would continue in a straight path. With gravity, the moon still moves in a straight path if you map it onto spacetime, because of the distortion. If it's a bump instead of a hole that doesn't change anything about that situation, and I would guess that it's not even meaningful to talk about a bump instead of a hole.

The rubber sheet metaphor kind of sucks.


 No.802824

>>802649

>we don't actually know the speed of gravity

? I thought the LIGO measurements pretty much confirmed that gravitational waves travel at the speed of light?


 No.802856>>802857

File (hide): b5a606ddac57ce4⋯.jpg (51.73 KB, 699x449, 699:449, emdrive.jpg) (h) (u)

>>802665

>>802662

>>802793

EXPLAIN THIS SHIT

<pro-tip

>you can't


 No.802857

File (hide): 5a283e12cadd0ba⋯.jpg (120.32 KB, 1600x1064, 200:133, e61ca4c0f82daead1186329b19….jpg) (h) (u)

File (hide): 4798f11eeb78368⋯.png (1.56 MB, 1248x874, 624:437, em_bell.png) (h) (u)


 No.802896>>802900

* eats popcorn, watches larpers, waits for unlikely discussion of actual science *


 No.802897>>802909

File (hide): b5bb7e9d1019c78⋯.jpg (1.59 MB, 1257x4361, 1257:4361, free-energy.jpg) (h) (u)


 No.802900>>802949

File (hide): d544667ba8cc69b⋯.webm (9.35 MB, 640x480, 4:3, einstein-on-relativity.webm) (h) (u) [play once] [loop]

>>802896

General relativity is only partially right. Special relativity is video related.


 No.802909>>802920

>>802897

Can you stop sharing this shitty image you made - half of it is just plain wrong


 No.802920

>>802909

I didn't make it faggot. But yes half of it is wrong. Like the parts on UFO's and aliens bullshit. Check out the experiment with magnets in it. It's real.


 No.802949

>>802900

- Who is the idiot faking Einstein's voice?

- General relativity is one of the most fully verified theories in science.

- There was absolutely nothing in that incredibly stupid video with the least connection to special relativity.

- The quantum flux of space has no connection to either general relativity or "the ether" (eye-roll)

- So far there have been nothing but larpers in this thread, with the exception of the guy who knew that gravity propagates at the speed of light.

- You're one of them

- Why does every science larper in the whole world obsess on Tesla?


 No.802962>>802963 >>802964 >>802966 >>802977 >>803006 >>803082

>>802648

>As far as I am aware of force of gravity is not yet understood well. What exactly causes it is a mystery.

>>802649

>Gravity is not yet well understood.

I dropped out of high school and even I can tell you gravity is the centrifugal force exerted upon the surface of the earth from it's orbit, both around the sun and from spinning on it's axis simultaneously. I would guess that the faster the planet orbits, and spins on it's axis, the stronger the gravitational force exerted upon the planet's surface. Now, where is my nobel prize and cash reward? I'm a massive poorfag, anons.

We could set up a nice experiment for proofs using a giant lead ball with a steel rod embedded through the center on a track driven by electromagnet in the center spinning on a tilted axis and measure the force exerted upon it's surface to ensure I'm correct and deserving of the fat check coming my way so I can get my life together finally.


 No.802963>>802970

File (hide): 1c881dd574a1b00⋯.png (5.85 KB, 626x626, 1:1, don't think so.png) (h) (u)


 No.802964

>>802962

>centrifugal force exerted upon the surface

Or rather the inverse centrifugal force, caused by the planet simultaneously orbiting around the sun and spinning on the it's axis.

That explanation sounds a bit better.


 No.802966>>802970

>>802962

>high school dropout

>centrifugal force

lol


 No.802970>>802971

>>802966

>>802963

mock my limited education if you wish, soon you'll be seeing me striking it rich for solving this mystery.


 No.802971

>>802970

please consider solving this mysery using rust


 No.802977>>802980

>>802962

>I can tell you gravity is the centrifugal force exerted upon the surface of the earth from it's orbit, both around the sun and from spinning on it's axis simultaneously. I would guess that the faster the planet orbits, and spins on it's axis, the stronger the gravitational force exerted upon the planet's surface.

what causes someone to hold such beliefs?


 No.802980>>802984

>>802977

It's just how I see it when I close my eyes and imagine.

Probably wrong and I'm just shitposting

but yet again I was considered gifted and before I ever began attending school when I was very young I wondered how my bedside table was made in my bedroom, so I closed my eyes and zoomed in in my mind and came to the conclusion that it was tiny particles. It's like I was tapping into the unconscious well of knowledge.


 No.802984>>802989

>>802980

>

>but yet again I was considered gifted and before I ever began attending school when I was very young I wondered how my bedside table was made in my bedroom, so I closed my eyes and zoomed in in my mind and came to the conclusion that it was tiny particles. It's like I was tapping into the unconscious well of knowledge.

It's called magical thinking and is a symptom of schizophrenia, not genius.


 No.802985>>802988 >>802989

>He thinks (((mental illness))) is a real thing

Stop shitting up the board with pajeet tier topics. Get back to talking about science.


 No.802988

>>802985

>>He thinks (((mental illness))) is a real thing

<muh jooz

>>802985

>Get back to talking about science.

<implying the LARPers weren't just talking about esoteric voodoo with buzzwords like "quantum" sprinkled in between


 No.802989>>802991

>>802984

You are insinuating I'm making it up or don't remember right?

I would almost conclude the same thing, but I still remember my thought process, It began as myself shrinking down small enough to walk on the table, I shrunk myself further and suddenly the table was no longer flat, there were mountains made of shitty particle board and so on until I found my answer

>>802985

>He thinks (((mental illness))) is a real thing

I agree with you a bit, but how do you explain Terry Davis, anon?


 No.802991>>802995

>>802989

>You are insinuating I'm making it up or don't remember right?

No, I believe that you believe.


 No.802994

>but yet again I was considered gifted and before I ever began attending school when I was very young I wondered how my bedside table was made in my bedroom, so I closed my eyes and zoomed in in my mind and came to the conclusion that it was tiny particles. It's like I was tapping into the unconscious well of knowledge.

>I would almost conclude the same thing, but I still remember my thought process, It began as myself shrinking down small enough to walk on the table, I shrunk myself further and suddenly the table was no longer flat, there were mountains made of shitty particle board and so on until I found my answer

holy shit. are you tripping????????


 No.802995

>>802991

>You're crazy

Always the crazy card instead of a actual refutal of my theory.

Was Martin Luther King Jr. crazy when he dreamed that his race could live in a socialistic parasitic manner on the backs of the white working class eating buckets of KFC and smoking swisher sweets and white owls all day?


 No.803006

>>802962

It's very easy to disprove your theory about gravity being a "centrifugal force". Build apparatus shown on pic related called Cavendish balance, after British scientist Henry Cavendish who in 1797 performed this experiment showing force of gravity between two masses in laboratory and was first who found accurate values for gravitational constant. Force of gravity between mases causes torsional tension in wire. If you know torsion coefficient of wire you can measure deflection angle and calculate force between masses which can be used to calculate gravitational constant with Newton's gravitational law. Notice how masses are stationary, yet they still attract one another. Nothing is rotating, but force is still present between objects. We have models that help us predict how object interacts with gravitational field, but what exactly is that field is an unknown.


 No.803081

It still isn't known for sure whether antimatter and matter have mutually repulsive gravitational fields. Although cold antihydrogen atoms have been created and trapped briefly, the electromagnetic forces required to contain them make it impossible to observe their interaction with normal gravity. If it turns out that antimatter "falls up" in the Earth's gravitational field, then that would constitute "antigravity". The problem then would be in constructing a massive-enough antimatter object to be useful. Matter and antimatter annihilate on contact, so the likelihood of that seems very low.


 No.803082

>>802962

>calls a force directed towards the center of the planet "centrifugal"

Anon ...


 No.803317

Eventually, we'll be overcoming gravity by using vibrations. Don't expect anything impressive in your or your grandkid's lifetime, but provided humanity exists long enough, your great grandchildren will have those floating cars you want so much.

http://www.itv.com/news/2015-10-28/working-tractor-beam-defies-gravity-using-sound-waves/




[Return][Go to top][Catalog][Screencap][Nerve Center][Update] ( Scroll to new posts) ( Auto) 3
35 replies | 6 images | Page ???
[Post a Reply]
[ / / / / / / / / / / / / / ] [ dir / ask / asmr / hikki / madchan / rad / radcorp / sonyeon / strek ][ watchlist ]