/sci/ - Science & Math

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Anonymous Sat 18 Sep 22:15:13 2021 No.13656277 View Reply Original Report

Quoted By: >>13656296

What is heavier. A killogram of Steel, or a killogram of Feathers?

Anonymous

Anonymous Sat 18 Sep 2021 22:18:04 No.13656296 Report

Quoted By:

>>13656277
you are mom aha gotem

Anonymous

Anonymous Sat 18 Sep 2021 22:21:39 No.13656312 Report

Quoted By: >>13656317

Steel obviously because if you drop a kilogram of steel and a kilogram of feathers side by side in a vacuum the steel will hit the ground first because it's heavier

Anonymous

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Anonymous Sat 18 Sep 2021 22:23:02 No.13656317 Report

Quoted By:

>>13656312

Anonymous

Anonymous Sat 18 Sep 2021 22:23:43 No.13656319 Report

Quoted By:

compress them both into a point and see what happens when you try to measure them.

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Anonymous Sat 18 Sep 18:27:40 2021 No.13655712 View Reply Original Report

Quoted By: >>13655898 >>13656305

Tell me why it wouldn't be possible to go to space like this:

Jet fuel is expensive, so what if you use some sort of weather balloon? Of course the weather balloon pops at a certain altitute because the pressure inside is greater than the pressure outside. So what if you do some sort of vent that lets the floating gas escape slowly to prevent the balloon from popping? Wouldnt you go higher and higher? And then you would only need some fuel for the last few miles instead of from off the ground

thanks

4 posts omitted

Anonymous

Anonymous Sat 18 Sep 2021 20:07:00 No.13655898 Report

Quoted By: >>13656116

>>13655712
You're forgetting orbital speed.

Anonymous

Anonymous Sat 18 Sep 2021 21:28:35 No.13656106 Report

Quoted By:

>>13655860
good luck transporting a multi million pound rocket up a fucking mountain

Anonymous

Anonymous Sat 18 Sep 2021 21:31:29 No.13656116 Report

Quoted By:

>>13655898
Which is what uses most of the fuel. Sub-orbital flight is for manlet rich guys.

Anonymous

Anonymous Sat 18 Sep 2021 21:35:05 No.13656131 Report

Quoted By:

>>13655860
>would it at least save fuel to have a launch pad high up?
Sure. That's why Virgin Galactic is two-stage.

Anonymous

Anonymous Sat 18 Sep 2021 22:19:54 No.13656305 Report

Quoted By:

>>13655712
The actual reason is the same as to why rockets aren't launched from mountains. Most of the energy isn't spent in climbing but getting to the orbital velocity so the savings of launching from higher would be low while the cost would be extremely high.

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Has Science Gone Too Far?

Anonymous Sat 18 Sep 22:08:17 2021 No.13656238 View Reply Original Report

Quoted By: >>13656260 >>13656267

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Anonymous Fri 17 Sep 18:38:00 2021 No.13653062 View Reply Last 50 Original Report

Quoted By:

>We should do something to save the earth from climate change
>Oh no not me, just everyone richer then me
how do we solve this problem? Everyone just points to people richer then them and says they are the problem.

53 posts and 7 images omitted

Anonymous

Anonymous Sat 18 Sep 2021 20:52:27 No.13656003 Report

Quoted By: >>13656195

>>13655978
>this organization has a political persuasion that matches its ideas
truly remarkable insight anon

>>13653897
>>13653895
>>13655772

youre all missing the point, even the so called "rich" will just point to people richer then them and say they are the ones "truly" in control. Its a never ending blame shift game. After all, the average joe in america is in the top 20% in the world. thats pretty fucking rich.

Anonymous

Anonymous Sat 18 Sep 2021 20:54:38 No.13656011 Report

Quoted By: >>13656229

>>13655995
If this image is an attempt to own me, rest assured this degenerate would be one of the first against the wall in my socialist utopia.

Anonymous

Anonymous Sat 18 Sep 2021 21:05:19 No.13656043 Report

Quoted By:

>>13655999
KeK

Anonymous

Anonymous Sat 18 Sep 2021 21:56:46 No.13656195 Report

Quoted By:

>>13656003
>After all, the average joe in america is in the top 20% in the world. thats pretty fucking rich.
the avrege joe has absolutely zero agency over any policy that would affect climate change, what he does, does not matter

Anonymous

Anonymous Sat 18 Sep 2021 22:07:36 No.13656229 Report

Quoted By:

>>13656011
>this degenerate would be one of the first against the wall in my socialist utopia
The second one would be you.

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Rivers on the Moon

Anonymous Fri 17 Sep 01:44:45 2021 No.13650544 View Reply Original Report

Quoted By: >>13652168 >>13655337 >>13656164

How does this happen?

10 posts and 4 images omitted

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Anonymous Sat 18 Sep 19:34:17 2021 No.13655829 View Reply Original Report

Quoted By: >>13655852 >>13655873 >>13655890

i have approximately 3 months to induce schizophrenia. how can i accomplish this?

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death and aging

Anonymous Sat 18 Sep 20:48:19 2021 No.13655989 View Reply Original Report

Quoted By: >>13656093

https://www.theguardian.com/science/2014/may/04/young-blood-reverse-ageing-mice-studies

Is this a joke? Scientists searching for immortality have a 'breakthrough' by pouring young blood into an old body. This reads like an Victorian science experiment. How the fuck is it that no one else had done this until 2014?

>there are actually people here who believe science will solve aging and death within their lifetimes

Not with this crock of shit. Medicine is, in a number of areas, truly stuck in the dark ages. Bones was right. I mean for fuck sake we bombard people with radiation to kill cancer and when people have a bad tooth we rip it out and put porcelain and steel in there to replace it. These are not the methods of an advanced age, certainly not one capable of solving death and aging.

Anonymous

Anonymous Sat 18 Sep 2021 20:53:51 No.13656006 Report

Quoted By:

I've seen people make
>all the old elites survive off twink blood
posts/jokes for years at this point
>Medicine is, in a number of areas, truly stuck in the dark ages
agreed, like you said, many treatments are downright barbaric. It's very uneven across the fields of medicine, some is properly modern and others have bare advanced in hundreds of years.

Anonymous

Anonymous Sat 18 Sep 2021 21:11:15 No.13656059 Report

Quoted By:

if immortality is what you're after i suggest you start repenting

Anonymous

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Anonymous Sat 18 Sep 2021 21:25:05 No.13656093 Report

Quoted By: >>13656112

>>13655989
Apparently, or so I've heard, transfusing young blood into ones (older) body gives a one of a kind feeling and is supposedly really addicting. And apparently, supposedly, not likely, there's a specific group of people that have been doing it for quite some time now.

Anonymous

Anonymous Sat 18 Sep 2021 21:30:25 No.13656112 Report

Quoted By:

>>13656093
lmao they were about 2000 or so years ahead of those scientists

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Electric Fields: Schizo or Not?

Anonymous Wed 15 Sep 20:37:39 2021 No.13645050 View Reply Last 50 Original Report

Quoted By: >>13653336

Hey it's me from a couple of days ago. Have you /sci/entists come up with an adequate definition of an electric field yet? As a pre-emptive measure, I will outline proposed definitions of an electric field that weren't satisfactory from the last thread:
>an electric field is NOT just a result of maxwell's equations
>an electric field is NOT just a tool used for other calculations
>an electric field does NOT just power electronics
>an electric field is NOT the sum of a negative (i.e., "an electric field is not a particle")

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Anonymous

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Anonymous Fri 17 Sep 2021 20:01:05 No.13653332 Report

Quoted By:

>>13653236
>why was he such a shitty writer
lol read a bit of this, and you'll see exactly where his writing style comes from
https://archive.org/details/theoryofnaturalp00boscrich/page/72/mode/2up

>poor language ability
hardly, just 19th century taste

Anonymous

Anonymous Fri 17 Sep 2021 20:03:53 No.13653336 Report

Quoted By: >>13654197

>>13645050
>electric field
The area in which photons are spinning in an orderly fashion due to the presence of high voltage or current flow.

Anonymous

Anonymous Sat 18 Sep 2021 00:39:23 No.13654197 Report

Quoted By: >>13654881

>>13653336
>The area in which photons

lets say you just have a charge in free space. Where did the photons come from?

Anonymous

Anonymous Sat 18 Sep 2021 09:31:22 No.13654881 Report

Quoted By: >>13656105

>>13654197
Thes photons do exist, when the field is broken they appear getting free.
But before that they are bound to the poles, constantly changing energy between the poles, they dont interact with anything else.

Anonymous

Anonymous Sat 18 Sep 2021 21:27:51 No.13656105 Report

Quoted By:

>>13654881
>Thes photons do exist, when the field is broken they appear getting free.
Is this a falsifiable theory?

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Anonymous Fri 17 Sep 16:25:44 2021 No.13652572 View Reply Original Report

Quoted By:

When calculating variance, why do we square the deviation of random variable from it's mean? I figured it's so that positive and negative deviations dont cancel each other out, but obviously you could do that easier just by taking the absolute value of the deviation. So yeah, where does that second power come from?

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Anonymous

Anonymous Sat 18 Sep 2021 11:33:59 No.13655032 Report

Quoted By: >>13655691 >>13656065

squares also penalizes values distant from the mean more compared to absolute values

Anonymous

Anonymous Sat 18 Sep 2021 18:19:27 No.13655691 Report

Quoted By: >>13656096

>>13655032
>squares also penalizes values distant from the mean more compared to absolute values
this isn't a feature, tho. It's a bug. You have to be very careful when doing variance and weed out the outliers first, otherwise you'll get regressions and trends that look nothing like the data set.

Anonymous

Anonymous Sat 18 Sep 2021 21:16:14 No.13656065 Report

Quoted By:

>>13655032
4th powers penalizes values distant from the mean more compared to squares. Why don't we use 4th powers. Or 100th powers?

It's just because 2nd powers are easier to calculate than bigger powers. All we are doing is measuring the "spread" of the data. As long as we have some measure of spread than is 0 when all the data is the same and increases as stuff gets more spread out, then we can do things like check for 0 or compare 2 "spreads".

So which one do we pick, considering there is an infinite amount of way to create this measure? We just pick one that is easy to calculate and has some nice algebraic properties.

Anonymous

Anonymous Sat 18 Sep 2021 21:25:45 No.13656096 Report

Quoted By:

>>13655691
>massaging the data
Social scientists please leave.

Anonymous

Anonymous Sat 18 Sep 2021 21:27:22 No.13656102 Report

Quoted By:

absolute value is not differentiable

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Oceanography

Anonymous Sat 18 Sep 16:26:36 2021 No.13655443 View Reply Original Report

Quoted By:

What's /sci/'s opinion on oceanography?

5 posts omitted

Anonymous

Anonymous Sat 18 Sep 2021 19:35:06 No.13655831 Report

Quoted By:

>>13655697
I'm aware that there's physical and geological specializations to oceanography as well, but biology and chemistry are also a part of it. It's a highly varied field with pretty much the only constant being the oceanic focus.

Anonymous

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Anonymous Sat 18 Sep 2021 19:36:41 No.13655836 Report

Quoted By: >>13656085

>>13655744
It always amazes me how we know so little about the ocean despite how long we've been around it compared to our relatively short time exploring space.

Anonymous

Anonymous Sat 18 Sep 2021 19:44:30 No.13655846 Report

Quoted By: >>13655880

>>13655568
You are too young to be posting here.

Anonymous

Anonymous Sat 18 Sep 2021 20:00:15 No.13655880 Report

Quoted By:

>>13655846
I'm 18

Anonymous

Anonymous Sat 18 Sep 2021 21:23:21 No.13656085 Report

Quoted By:

>>13655836
Space is easier to explore.

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