Troll science

[Anonymous No.1804163]

[Anonymous No.1804170]

i lol'd

[Anonymous No.1804177]

If only.... If only....

[Anonymous No.1804179]

derp

[Anonymous No.1804184]

Is it even possible to build a single physical object a light year long?

[Anonymous No.1804185]

>>1804163
I love it how this got 20x more discussion posts under /v/ than in /sci/

"derp" doesn't cover shit my friend. I doesn't mean you understand what's going on or that what's implied is wrong.

[Anonymous No.1804188]

>>1804184
why would it not be..

[Anonymous No.1804189]

The stick will not poke the object immediatly
/thread

[Anonymous No.1804191]

Wouldn't the force still have to "propogate" through the stick so to speak? The molecules near the end of the stick wouldn't be aware of the force and hence wouldnt move till the force got to them. Unless of course we have an infinitely rigid light-year long stick? idk I don't science :[

[Anonymous No.1804193]

>>1804189
Are you playing on the word 'immediately'
or do you think the stick has a delayed reaction?

[Anonymous No.1804195]

so you imply atoms will somehow break all the laws of physics and theory of relativity, traveling at speed >c, just because you poke someone with a stick.

[Anonymous No.1804198]

>>1804195

look sir, a troll has elicited a response from you

[Anonymous No.1804201]

>>1804188
Because after a certain point mass wouldn't be able to hold itself altogether and either break apart or lose mass itself one way or another.

>>1804163
It will still take a year for the stick itself to move from one end to another, as well it require the same amount a force it takes a light to travel a year to push it.

[Anonymous No.1804210]

>>1804201
At a point it would become black hole.....

but this is a long thing object.

break apart? It holds itself together in space unless you wobble it.

>lose mass
huh?

I'm disappointed in /sci/
I came here from /v/ and well...

[Anonymous No.1804218]

>>1804210

>>but this is a long thing object
>>a long thing object

[Anonymous No.1804220]

Depending on the material of the stick the impuls will propagate through the stick at speed v with v<c,
since every single atom of the stick can only be accelerated to speed v.
Also some of the kinetic energy will be transformed into subatomic deformation of the stick, the "poke" would not reach the other end of it.

[Anonymous No.1804224]

>>1804220
and with that

the troll is unraveled and cast away, good day troll aka OP

[Anonymous No.1804226]

hooby doop doop doop, same thread different day

[Anonymous No.1804229]

fukken explained:
imagine points A and B on the edges of poke and C in, for example, the middle. When you poke at A, energy travels thorugh disturbance on moleculas to the point B where it moves in space (forward this time). If you apply too much of energy at small amount of time, energy cant travel fast enough, it accumulates at point C and at some critical point breaks the stick apart. For you to poke the stick careful enough to not to break it would take more than 1 year.

[Anonymous No.1804233]

>>1804210
Mass can only be able to hold itself to certain point, after which it would lose and start converting into the energy. Also once an object has mass or gains mass, it obtains it's only gravity that increases depending on how much mass there is, a stick a light year long would start to orbit and rotate on it's own.

[Anonymous No.1804237]

It can't be a troll
it's in /sci/ and /sci/ related

..so what, if it's too difficalt for 4chan's poor fa/sci/sts it's a 'troll'?

[Anonymous No.1804248]

>>1804229

This makes sense, the energy required for this would be greater than the molecular cohesion in the stick regardless of the material?

[Anonymous No.1804296]

The stick will probably just gravitate itself in, start nuclear fusion and become a new star

[Anonymous No.1804318]

>>1804296
not really

I did extensive calculations during one of the thousands of time this thread was posted in the past.

Given a cuboid rod with a 10x10 centimeter base and a length of 1 light year we get a volume of 9.461E19 cubic centimeters. If we assume the rod is made of iron, this comes out to a mass of 7.45E17 kilograms. The mass of the Earth is 5.972E24 kilograms, which means our lightyear-long rod is only one ten-millionth the mass of the Earth. Not enough to start fusion. What will likely happen is that the rod will sheer in numerous places, breaking apart and forming small iron-clumps, which will becoming scattered by the various gravimetric forces acting on it at different strengths along its length.

Assuming a cuboid rod made of iron with a 10x10 centimeter base and a length of one light year, the total mass ends up being something like

[Anonymous No.1804356]

Barring any gravitational limitations, if the end of the stick was a foot from the person being poked, and it took one second to move the pole from a foot away from the person to touching the person, the pole would be traveling at 1 f/s. Every atom in the pole is moving at 1 f/s.

[Anonymous No.1804363]

>>1804318
Yep, that would make an iron sphere only 35 miles across. The gravity on its surface would only be 1/150th earth gravity.

[Anonymous No.1804368]

>>1804356
The point is you'll never get the whole pole moving at the same speed at the same time. If you did, you would violate the causality limitations of relativity.

[Anonymous No.1804378]

Don't make a rod, make a massive sphere and then measure gravity at the other end. Simples

[Anonymous No.1804387]

>>1804378
Does gravity travel faster than light? And if it does, doesn't that technically mean it travels back in time? My brain hurts

[Anonymous No.1804391]

>>1804237

[Anonymous No.1804393]

OP here.
Woah, I didn't expect a serious discussion.

[Anonymous No.1804394]

This one actually works, it cut my commute time by 15 mins! If only I could actively view pornography while riding, imagine the possibilities.

[Anonymous No.1804395]

[Anonymous No.1804396]

>>1804378
>>1804387

The effects of gravity propagate at the speed of light.

Source: The Jupiter Quasar Experiment
http://arxiv.org/abs/astro-ph/0412401
http://www.jupiterscientific.org/sciinfo/sog.html

[Anonymous No.1804397]

>>1804387

Nope. It propagates at around the speed of light.

[Anonymous No.1804401]

>>>/v/74098715
crossan

[Anonymous No.1804404]

I was in a physics lecture the other day...

The teacher said that in the first few microseconds of the big bang, space expanded billions of lightyears across as the universe exploded.

I raised my hand and said: "But light is the fastest speed possible, therefore it is IMPOSSIBLE for space to have travelled billions of lightyears in microseconds"

He looked at me like I just blew his mind.

I think i'm going to be an astrophysicist.

[Anonymous No.1804405]

[Anonymous No.1804406]

>>1804401
Get ready /sci/
Here they come..

[Anonymous No.1804410]

>>1804404
>universe expansion is travel

He was looking at you like that because you're retarded.

[Anonymous No.1804411]

>>1804410
It's just a variation of Hankonomics. Pay no mind.

[Anonymous No.1804413]

Scientists recently found a dead star not too far from us, which has crystalized into a diamond not much smaller than earth.

http://news.bbc.co.uk/2/hi/3492919.stm

If NASA ever bring that shit back to earth or into our orbit to mine from... theyre going to be fucking RICH.

[Anonymous No.1804415]

>>1804413
>Suddenly a fuck huge supply of diamonds.
>Supplies rocket upward
>nope

[Anonymous No.1804416]

not vidya

[Anonymous No.1804419]

>>1804413

Due to extensive research done by the University of Pittsburgh, diamond has been confirmed as the hardest metal known to man. The research is as follows. Pocket-protected scientists built a wall of iron and crashed a diamond car into it at 400 miles per hour, and the car was unharmed. They then built a wall out of diamond and crashed a car made of iron moving at 400 miles an hour into the wall, and the wall came out fine. They then crashed a diamond car made of 400 miles per hour into a wall, and there were no survivors. They crashed 400 miles per hour into a diamond traveling at iron car. Western New York was powerless for hours. They rammed a wall of metal into a 400 mile per hour made of diamond, and the resulting explosion shifted the earth's orbit 400 million miles away from the sun, saving the earth from a meteor the size of a small Washington suburb that was hurtling towards mid-western Prussia at 400 billion miles per hour. They shot a diamond made of iron at a car moving at 400 walls per hour, and as a result caused two wayward airplanes to lose track of their bearings, and make a fatal crash with two buildings in downtown New York. They spun 400 miles at diamond into iron per wall. The results were inconclusive. Finally, they placed 400 diamonds per hour in front of a car made of wall traveling at miles per iron, and the result proved without a doubt that diamonds were the hardest metal of all time, if not just the hardest metal known to man.

[Anonymous No.1804420]

>>1804413
>Implying you can mine the hardest material in the universe.
>Not knowing that any pickaxe will break when you swing it at the diamonds.
>Drills will break too.

[Anonymous No.1804421]

>>1804415
>rocket
teehee

[Anonymous No.1804422]

>>1804415
>implying the supply on earth isn't already massive and being controlled by cartel

[Anonymous No.1804423]

>>1804415
yeah theyll be more common than before but still valuable because theyre so useful, theyre sharp and get used for blades, theyre the hardest metal known to man, they could be used for a durable glass replacement and much more!

If everyone had a ton of diamond sitting in their back garden, famine would be over! countries wouldnt need to fight for resources because theyd be rich and it would basically bring on a revolution of world peace.

[Anonymous No.1804424]

>>1804413
>implying they wouldn't be poor as fuck because when there's a planetload of diamond available it'd be worth about as much as sand

>>1804420
>implying they wouldn't just use dragonforce-tipped drill bits

[Anonymous No.1804425]

>>1804416

...

[Anonymous No.1804427]

>>1804404
well they sort of were and they weren't. In a way you can actually travel at the speed of light, it's just that time dilation will make your journey a lot longer than it seems. There's different ways of looking at it, that's why it's called relativity

[Anonymous No.1804428]

>>1804423

Actually, they would just be useless rocks.

Technically they aren't even precious stones now, but for some reason people think they are.

[Anonymous No.1804430]

Scientists recently used the most accurate atomic clocks to show that time travels at different speeds at higher altitudes, even from 3 feet up...

the difference is mind-bogglingly small (something like a fraction of a billionth of a second over 10^1000 years)

My plan, is to take a rocket ship into space as far away from earth as possible where time will pass so slowly that i will essentially live forever.

[Anonymous No.1804431]

I milked a dog.

It looked happy the whole time.

I think she is a whore.

Gonna fuck her later.

For science.

[patachu !LULZISTwQI No.1804433]

>>1804387
gravity doesn't travel. it's a dimension however; particles, atoms and matter does travels at a maximum of c.
and yeah, it's electromagnetic and nuclear interactions that keeps these atoms, and the said interaction travels at c, which is the known limit, sadly.

[Vandersveldt No.1804435]

I also came here from /v/, and that thread combined with this thread has made a very depressed man enjoy life more than anything has in months. Thank you for such entertainment :)

[MAD SCIENTIST No.1804436]

Holy fuck you guys

[Anonymous No.1804440]

>>1804394
>>1804436


Sir, I'm afraid I'm going to have to file a lawsuit for this very clear breach of patent

[Anonymous No.1804442]

>>1804436
so half your entire bodyweight is made up from cum?

[Anonymous No.1804448]

>>1804404
c isn't the fastest speed possible. It's the fastest possible group speed of matter or energy across space. Space itself has no problem expanding faster than c.

[Anonymous No.1804453]

>>1804433
gravity propagates at c, just like electromagnetism.

[Tea !iMAd.U6Rb2 No.1804458]

And what about
THAT?

[patachu !LULZISTwQI No.1804466]

what about this? an electric motor with an integrated alternator, self-sufficient, just a battery to initiate the startup :D

praise me like your overgod, now !

[Anonymous No.1804469]

>>1804458

[Anonymous No.1804526]

>>1804458

clever

[Tea !iMAd.U6Rb2 No.1804533]

>>1804526
>>1804469
So, is it even possible?
Am I a genious?

[Anonymous No.1804542]

>>1804533

No because it's not infinite energy, that planet isnt always gonna be in the exact same state.

[Anonymous No.1804552]

>>1804458
>infinite source of energy
What? How?

>>1804526
>>1804469
Samefag

[Anonymous No.1804588]

>>1804405
And after a few days those wrecking balls will demolish adjacent cities.

[Anonymous No.1804770]

>>1804533
.....you spelled 'genius' wrong.....facepalm

[Anonymous No.1804829]

>>1804533
nope, a ball inside a hollow sphere would be unaffected by its gravity

[Anonymous No.1806094]

The poke propagates at the speed of sound in the stick's material.