/sci/ - Science & Math » Thread #10859796

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/sci/ humor thread

Anonymous Sat 03 Aug 07:01:09 2019 No.10859796 View Reply Original Report

Quoted By: >>10859810 >>10859849 >>10859861 >>10861001 >>10861276

Post images that make you chuckle and make you feel smart at the same time

Anonymous

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Anonymous Sat 03 Aug 2019 07:02:46 No.10859801 Report

Quoted By: >>10863436

Anonymous

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Anonymous Sat 03 Aug 2019 07:05:02 No.10859805 Report

Quoted By: >>10859810

Anonymous

Anonymous Sat 03 Aug 2019 07:10:32 No.10859810 Report

Quoted By: >>10859816

>>10859796
>>10859805
upboat!!!1!

Anonymous

Anonymous Sat 03 Aug 2019 07:14:58 No.10859816 Report

Quoted By:

>>10859810
Thanks for your contribution

Anonymous

Anonymous Sat 03 Aug 2019 07:41:13 No.10859849 Report

Quoted By:

>>10859796
i looked at that for like a minute until i figured it out that's pretty funny lol.

Anonymous

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Anonymous Sat 03 Aug 2019 07:43:48 No.10859854 Report

Quoted By:

Anonymous

Anonymous Sat 03 Aug 2019 07:49:50 No.10859861 Report

Quoted By: >>10862885

>>10859796

>What did the number theorist say before drowning to death?

logloglogloglogloglogloglog

Anonymous

Anonymous Sat 03 Aug 2019 17:14:04 No.10861001 Report

Quoted By:

>>10859796
Thank you, anon!

Anonymous

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Anonymous Sat 03 Aug 2019 17:27:40 No.10861028 Report

Quoted By: >>10861099 >>10861114 >>10861202 >>10861747 >>10862885 >>10873296

I repost this one every time.

Anonymous

Anonymous Sat 03 Aug 2019 18:07:22 No.10861099 Report

Quoted By:

>>10861028
I will always smile out loud at this image. It's so true

Anonymous

Anonymous Sat 03 Aug 2019 18:12:52 No.10861114 Report

Quoted By: >>10861124 >>10861126 >>10861130 >>10862302 >>10862984 >>10864030 >>10864041

>>10861028
What's the real answer to the problem?

Anonymous

Anonymous Sat 03 Aug 2019 18:18:37 No.10861124 Report

Quoted By: >>10861268

>>10861114
1.5

Anonymous

Anonymous Sat 03 Aug 2019 18:19:17 No.10861126 Report

Quoted By: >>10861268

>>10861114
1.5kg

Anonymous

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Anonymous Sat 03 Aug 2019 18:20:13 No.10861130 Report

Quoted By: >>10861242 >>10861268 >>10861738

>>10861114
1.5 kg. The mass of an object is unrelated to the internal configuration of the object.

Same reason why pic related doesn't work.

Anonymous

Anonymous Sat 03 Aug 2019 19:00:22 No.10861202 Report

Quoted By:

>>10861028
It reads numbers :)

Anonymous

Anonymous Sat 03 Aug 2019 19:23:52 No.10861242 Report

Quoted By:

>>10861130
>internal
obv bait but i'll bite. it's not internal. the flies aren't INSIDE the glass. they are not transferring weight to the scale.

Anonymous

Anonymous Sat 03 Aug 2019 19:34:24 No.10861268 Report

Quoted By: >>10861338

>>10861124
>>10861126
>>10861130
Why? The flies are suspended in the air.

Anonymous

Anonymous Sat 03 Aug 2019 19:37:07 No.10861276 Report

Quoted By:

>>10859796
That pic is the biggest cringe tho

>aspiri = a constant

hur hur hur

Anonymous

Anonymous Sat 03 Aug 2019 20:10:52 No.10861338 Report

Quoted By: >>10861756 >>10863466 >>10864759

>>10861268
The flies are applying a downward force roughly equal to mg, that force pushes through the air onto the bottom of the jar

Anonymous

Anonymous Sat 03 Aug 2019 20:29:00 No.10861381 Report

Quoted By:

>>>/IFLS/

Anonymous

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Anonymous Sat 03 Aug 2019 23:31:54 No.10861738 Report

Quoted By:

>>10861130

Anonymous

Anonymous Sat 03 Aug 2019 23:37:07 No.10861747 Report

Quoted By:

>>10861028
>Water and air are the same
Kek every time

Anonymous

Anonymous Sat 03 Aug 2019 23:41:40 No.10861756 Report

Quoted By: >>10861780

>>10861338
Not only to the bottom. As 0.5kg of flies would need a fuckton of space and would also create turbulences the scale would probably show something like 1.01kg.

Anonymous

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Anonymous Sat 03 Aug 2019 23:44:55 No.10861761 Report

Quoted By: >>10861765

Anonymous

Anonymous Sat 03 Aug 2019 23:46:30 No.10861765 Report

Quoted By: >>10861776

>>10861761
Is the guy left from sun 0)))?

Anonymous

Anonymous Sat 03 Aug 2019 23:50:28 No.10861776 Report

Quoted By:

>>10861765
No. That's Grothendieck.

Anonymous

Anonymous Sat 03 Aug 2019 23:50:57 No.10861780 Report

Quoted By: >>10861783 >>10864063

>>10861756
Remember that force is a vector quantity. Consider the vertical component of force: if the flies are on average not vertically accelerating, they must exert a force on average equal to their weight on the air, which transmits that force to the jar (since the air has no average acceleration) which transmits that force to the scale. So an average of 1.5 kg reading.

Anonymous

Anonymous Sat 03 Aug 2019 23:52:51 No.10861783 Report

Quoted By: >>10861798

>>10861780
Wouldn't most of the vectors colliding with each other cancelling its forces out before it reaches the glass?

Anonymous

Anonymous Sun 04 Aug 2019 00:00:27 No.10861798 Report

Quoted By: >>10861870 >>10864063

>>10861783
Each independent component of momentum must be conserved. The average vertical momentum of each body must be zero, or it would move away. If a body is in a gravitational field and isn't accelerating down, it must exert a downward force equal to its weight on other bodies. The flies exert this force on the air, the air on the glass, and the glass on the scale.

Anonymous

Anonymous Sun 04 Aug 2019 00:54:06 No.10861870 Report

Quoted By: >>10861992

>>10861798
The fly applies pressure downwards the column of air over a squared area of 0,01 m. We have an air height of 0,3 meters inside the jar

The fly applies enough pressure to lift its own body, which weights 10^-5 kg (trusting 0,5/50000)
9,81 m/s2 * 10^-5 kg = mg [N]
(0,01 m)^2= 10^-4 m^2 = A

P= [9,81 m/s2 * 10^-5 kg] / [10^-4 m^2]= 9,81*10^-1 Pa
>Roughly 1 Pascal applied over 0,3 meters
mmmm

I bet the flies don't move shit down in the jar
the turbulence is not spread

Anonymous

Anonymous Sun 04 Aug 2019 02:19:25 No.10861992 Report

Quoted By: >>10862812

>>10861870
No need to consider pressure, it just overcomplicates things. All you need is force and the third law

Anonymous

Anonymous Sun 04 Aug 2019 05:52:28 No.10862302 Report

Quoted By: >>10863030

>>10861114
0.5

Anonymous

Anonymous Sun 04 Aug 2019 11:26:30 No.10862812 Report

Quoted By: >>10863092

>>10861992
then how can you know if the mere presence of the fly is negligible? is the jar open? if so, how high should be the fly to exert a relevant force downwards?
also...
how about buoyancy?
the vertical force exerted on the fly would be proportional to the volume of the fly, reducing the vertical force

Anonymous

Anonymous Sun 04 Aug 2019 12:31:15 No.10862885 Report

Quoted By:

>>10859861
that's actually funny, anon
>>10861028
kek

Anonymous

Anonymous Sun 04 Aug 2019 13:48:14 No.10862984 Report

Quoted By: >>10863028

>>10861114
2D > 3D
oh fuck wrong thread

Anonymous

Anonymous Sun 04 Aug 2019 14:21:32 No.10863028 Report

Quoted By:

>>10862984
I see what you did there

Anonymous

Anonymous Sun 04 Aug 2019 14:25:19 No.10863030 Report

Quoted By:

>>10862302
only tolls answer 0.5

Anonymous

Anonymous Sun 04 Aug 2019 15:10:43 No.10863092 Report

Quoted By: >>10864063

>>10862812
I'm assuming the jar is closed, that's what it looks like to me in the picture. Buoyancy doesn't change the fact that conservation of momentum, and thus Newton's third law, cannot be violated. Assuming gravity is the only externally acting force, the flies must exert an average vertical force down on the air equal to their weight, and the air must transmit that force onto the jar, which must transmit that force onto the scale. If that didn't happen, then either the flies, the air, or the jar would experience a nonzero average vertical acceleration, which they clearly don't.

Anonymous

Anonymous Sun 04 Aug 2019 19:11:04 No.10863436 Report

Quoted By:

>>10859801
Professor Cox teaches at my school. See also: the Cox ring.

Anonymous

Anonymous Sun 04 Aug 2019 19:35:08 No.10863466 Report

Quoted By: >>10864015 >>10864063

>>10861338
>that force pushes through the air onto the bottom of the jar
To the bottom? But air is not solid, the force goes pretty much everywhere in the jar.

Anonymous

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Anonymous Sun 04 Aug 2019 20:17:25 No.10863554 Report

Quoted By:

Anonymous

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Anonymous Sun 04 Aug 2019 23:06:52 No.10864015 Report

Quoted By: >>10864041

>>10863466
>the force goes pretty much everywhere in the jar
wrong. The air molecules all bounce off of each other chaotically, but the majority of the force is directed downward and bounces off of the bottom of the jar, such that the average force applied to the bottom is 0.5kg. This is basic newtonian physics.

Anonymous

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Anonymous Sun 04 Aug 2019 23:12:24 No.10864030 Report

Quoted By:

>>10861114
Unambiguously 1.5 kg

Anonymous

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Anonymous Sun 04 Aug 2019 23:15:49 No.10864041 Report

Quoted By: >>10864065 >>10872168

>>10861114
Unambiguously 1.5 kg, assuming the scale has not been zeroed
>>10864015
Nice b8

Anonymous

Anonymous Sun 04 Aug 2019 23:27:06 No.10864063 Report

Quoted By:

>>10863466
See
>>10861780
>>10861798
>>10863092

Anonymous

Anonymous Sun 04 Aug 2019 23:28:53 No.10864065 Report

Quoted By:

>>10864041
>nice bait
It's not newtonian physics, but it's still not bait.
Attaching furry prostitutes to your post is bait.

Anonymous

Anonymous Mon 05 Aug 2019 03:44:28 No.10864759 Report

Quoted By: >>10864779

>>10861338
No. When a fly pushes air down with their wings, they create a small difference in pressure beneath and above their wings, which is where the air relocates. Doesn't domino force through air particles to the bottom of the jar. Also, that force wouldn't represent the fly's mass anyhow.

Anonymous

Anonymous Mon 05 Aug 2019 03:56:13 No.10864779 Report

Quoted By: >>10864810 >>10867114

>>10864759
The force does represent the fly's mass. It's just Newton's third law, which is a consequence of conservation of momentum. Unless the fly has some nonzero average vertical acceleration (which it can't, since it's in the jar), it must exert a downward component of force on average equal to the fly's weight on the air. Likewise, unless the air has some nonzero average acceleration, the jar must exert an upward force on the air to balance this, which by Newton's third law, implies a downward force of the air on the jar corresponding to the fly's weight on average.

Anonymous

Anonymous Mon 05 Aug 2019 04:07:09 No.10864810 Report

Quoted By: >>10865546

>>10864779
Maybe I don't understand, but by that reasoning shouldn't you be able to feel birds as they fly over your head?

Anonymous

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Anonymous Mon 05 Aug 2019 12:54:39 No.10865546 Report

Quoted By:

>>10864810
You can if they fly just above your head. Otherwise the force they exert downward is diffused over a large enough area that it is unnoticeable to a human, but it is still exerting that force. Think about it this way; if a person is floating in a pool, their weight adds to the total weight of the pool, but if youre underwater, you dont notice a great difference when they float above your head.

Anonymous

Anonymous Tue 06 Aug 2019 00:32:38 No.10867114 Report

Quoted By: >>10867465

>>10864779
>Unless the fly has some nonzero average vertical acceleration (which it can't, since it's in the jar),
it has vertical force, im telling you fucking moron
BUOYANCY Archimedes' law affectz air as a fluid. It's relevant since the fly has low mass-volumen ratio (density)

Anonymous

Anonymous Tue 06 Aug 2019 03:34:26 No.10867465 Report

Quoted By:

>>10867114
Buoyancy is part of the force that keeps the fly aloft, the rest is provided by the fly's wings. The total vertical force, after accounting for everything, must equal the fly's weight on average for the reason I already explained. That's the beauty of understanding Newton's Third Law and conservation of momentum: you don't even need to understand buoyancy, turbulence, or any other aerodynamic effects to come to the conclusion of the previous sentence. All you need to know is that the fly counteracts gravity through interaction with the air inside the jar.

Anonymous

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Anonymous Tue 06 Aug 2019 17:12:47 No.10868718 Report

Quoted By:

Briefly...

Anonymous

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Anonymous Wed 07 Aug 2019 04:01:25 No.10870262 Report

Quoted By:

Anonymous

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Anonymous Wed 07 Aug 2019 04:12:43 No.10870290 Report

Quoted By:

Cute

Anonymous

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Anonymous Wed 07 Aug 2019 04:50:44 No.10870376 Report

Quoted By:

Anonymous

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Anonymous Wed 07 Aug 2019 09:49:25 No.10870811 Report

Quoted By: >>10870832 >>10872398

Anonymous

Anonymous Wed 07 Aug 2019 10:06:36 No.10870832 Report

Quoted By:

>>10870811
Didn't know pancake formalized that.

Anonymous

Anonymous Wed 07 Aug 2019 21:56:51 No.10872168 Report

Quoted By:

>>10864041
sauce?

Anonymous

Anonymous Thu 08 Aug 2019 00:38:58 No.10872398 Report

Quoted By:

>>10870811
Henry path gave me a giggle.

Anonymous

Anonymous Thu 08 Aug 2019 10:13:26 No.10873296 Report

Quoted By: >>10873308

>>10861028
Would anyone be interested if I tested this experimentally?

Anonymous

Anonymous Thu 08 Aug 2019 10:23:31 No.10873308 Report

Quoted By: >>10873311

>>10873296
I'd be extremely interested in watching an anon get 0.5 kg of flies.

Anonymous

Anonymous Thu 08 Aug 2019 10:32:59 No.10873311 Report

Quoted By: >>10873331

>>10873308
I was thinking of 10g rc helicopter

Anonymous

Anonymous Thu 08 Aug 2019 10:47:41 No.10873331 Report

Quoted By: >>10873353

>>10873311
do it anon

Anonymous

Anonymous Thu 08 Aug 2019 10:59:32 No.10873353 Report

Quoted By:

>>10873331
Might do it tomorrow. Have to see how much the rc helicopters cost here

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