Archived threads in /sci/ - Science & Math - 152. page

There already exist materials to trap light. I imagine something more sophisticated could be made where you store the light output of a candle over time and release it all at once creating a flash.

I feel like this thread belongs in the 1700's

>>9118226
I am an epistolary lightning lithograph correspondent like any other, and I am most certainly of the present age.

If you are indeed also of the present age, perhaps you could prove this by posting maritime charts to new lands rich in gold and spices.

[math]
\begin{matrix}
\text{Mass} & M \\
\text{Radius} & R = M \cdot \frac{2G}{c^2} \\
\text{Surface area} & A = M^2 \frac{16 \pi G^2}{c^4} \\
\text{Surface gravity} & \kappa = \frac{1}{M} \cdot \frac{c^4}{4G} \\
\text{Surface tides} & d \kappa_R = \frac{1}{M^2} \cdot \frac{c^6}{4G^2} \\
\text{Entropy} & S = M^2 \cdot \frac{4 \pi G }{\hbar c \; ln 10} \\
\text{Temperature} & T = \frac{1}{M} \cdot \frac{\hbar c^3 }{8k \pi G} \\
\text{Luminosity} & L = \frac{1}{M^2} \cdot \frac{\hbar c^6}{15360 \pi G^2} \\
\text{Lifetime} & t = M^3 \cdot \frac{5120 \pi G^2}{\hbar c^4} \\
\end{matrix}
[/math]

>>9119575
what the fuck

>>9119575
So,.... no?

You don't. Nootropics help push natural boundaries, but I wouldn't push such a lengthy spurt like 10 hours in one day. That's just dumb.

>>9118115
Its a one off, not recurrent.

>>9118115
Nigga
How sheltered are u that u've never had to work 10 hours straight? Like it's not something you want to do routinely, but it's far from impossible.

>>9117989
2-3 min tops.

>>9117999
you don't get to decide my limits.

>>9117989
>>9118074
do it until you can't see any more, then tell us how it went

>>9117807
Explain how a bumblebee can fly with fixed wings.

>>9117828
not him but
http://www.telegraph.co.uk/news/1541106/Bumble-bee-paradox-solved.html

>>9117828
by vibrating

>>9117612
Who the hell cares about the gayclipse?
There are eclipses every fucking minute and every time they say it's going to be the last in 20 billion years.

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>>9117616

>>9117612

Don't do it. 60% of the sun's rays will still fuck you up

I stared at the sun for a minute or so on a cloudy day a few years ago, thinking it was the moon- lucky enough to escape with a temporary burning sensation in my eyes.

However, I was (and still am :) young and extremely lucky. I will not risk my eyes like that again. If I had been out of my prime, I might have irreparably damaged my vision.

11 is not dark enough. Don't risk it. Prepare for the one in 2024

I think it's possible to reach higher shades by stacking filters though, look into that (on reputable sites, not 4chan of all places)

I'd recommend an English class for yourself. You need to be able to write more coherently than this.

>>9117296
What are you trying to ask? Can you repeat your question in a more coherent manor?

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>>9117299
>>9117306
He's clearly talking about aliens. Are your IQs sub-100?

>dailymail
Are you actually retarded

I've heard of one experimental treatment success story where they trained a person's immune system to attack cancer cells. The reaction was immediate and so severe that they almost died of fever as their body dissolved and ate the tumor protruding from their skull. Within 48 hours the protrusion had shrank, and the tumor was gone.

OP is a faggot

Your car tint will do nothing, neither will your glasses, even if you had 50. "Only goggles made for electric arc welding can be used to observe the sun, and they must have a shade scale number of 12 or higher. Shade 13 is ideal for solar viewing"

Just buy the glasses fool, they're under 10$

>>9117229
uh where are you supposed to buy them? They have been sold out of them everywhere for the past week.

I don't know why the fuck more weren't produced. They're made of fucking cardboard and have mylar+black polymer filters that you look through. Cheap as hell to manufacture

Poke a hole in a shoebox, piece of cardboard, stiff piece of paper, or otherwise and cast the shadow of the eclipse on the ground. You won't miss a thing.

>>9116875
>beautifully written, interesting and enlightening

Janich's Topology

>>9116875
>beautifully written, interesting and enlightening
The Bible

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>>9116773
BUT THE SECOND LAW OF THERMODYNAMICS SAYS THAT IF JEEESUUUUUUS DOESN'T EXIST THEN THE UNIVERSE DOESN'T EXIST.

THANKS JESUUUUUUUUUUUUUUUUUS

>mfw there are still christians in fucking 2017

Here is my top list :

>e=mc2
lol let's forget half the equation cuz we're too dumb to remind more than 4 symbols

>Blood is blue inside you

>If you go into space the lack of pressure will make you explode

>Moore's """""""law"""""""

>Schrödinger's cat is an actual experimentation

>The Big Bang was a huge explosion
(Sponsored by Michael Bay)

>""Degree"" Kelvin

Also the sum of all naturals equals -1/12 but that's a discutable one. I won't even talk about the sub pop-sci misconceptions (e.g. Chemtrails are bad, x is giving you cancer, etc...)

>treating entropy as a physical quantity and not a purely statistical one

>IRC client?
There's millions. https://en.wikipedia.org/wiki/Comparison_of_Internet_Relay_Chat_clients
Maybe the quickest to try out would be Chatzilla. Install it, open it, type
/server irc.rizon.net
/join #studygroup
and voila.

>Productivity tips.
https://www.youtube.com/channel/UCG-KntY7aVnIGXYEBQvmBAQ

>Countless ebooks.
http://libgen.io/

>Getting your life back on track RPG.
https://habitica.com/

>Pretty okay online resource.
https://www.allaboutcircuits.com/textbook/

>Youtube channels
https://www.youtube.com/channel/UCEBb1b_L6zDS3xTUrIALZOw
https://www.youtube.com/user/DarrylMorrell
https://www.youtube.com/user/derekowens
https://www.youtube.com/user/drjcircuits
https://www.youtube.com/channel/UCmQBM1Ke7MJVxd0O2gUzSGA
https://www.youtube.com/channel/UC6x7DywfEqLg-3Cg_JnyTlg
https://www.youtube.com/channel/UCFe6jenM1Bc54qtBsIJGRZQ
https://www.youtube.com/channel/UCdhGKS28LbzxebigAlA2rDg

why not use discord and spit it into different subjects

>>9116611
As I said on /g/, I have never used Discord in my life, but you're the second one suggesting it over IRC. So if anybody wants to make Discord channel, I'll join no prob, but I can't man it since I have no idea how.

Your brain isnt just the sum of its components. Its a dynamic system and eating more fat wont make it more dynamic or efficient. You would have to eat something that would increase the number of neurons or the rate they diffuse ion channels.

>>9116229
Close, eat fatty fish, the fish oils are good for the brain

>>9116229
The body can make its own, there's no strict need.

Eat healthy, and let the body machinery do the rest.

>>9115468
No chem, but I almost burnt my house down/killed myself while testing a microwave transformer (mains -> 8kV)..

I was trying to build an xray machine.
Settled for a cathodic ray tube.

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>>9115486

How do you generate x-rays with 8kV?

That might be a retarded question bc i'm a brainlet when it comes to anything lower than gamma rays

>>9115503
Using old school vacuum tubes (they generate stays as by product)

>>9113180
Post it here first so we can check it for errors.
You wouldn't want to publish a flawed proof, after all.

>>9113213
Can you just reply to my question, im not actually retarded, i just havent done any research in a long time, and when i did i didnt do maths.

>collatz conjecture
No one cares