-  [WT]  [PS]  [Home] [Manage]

  1.   (new thread)
  2.   Help
  3. (for post and file deletion)
/sci/ - Science, Technology, Engineering, and Mathematics

Join us in IRC!

•This is not /b/ or /halp/. Tech support has its own board.
•If you are not contributing directly to a thread, sage your post.
•Keep the flaming at a minimum.
•Tripcodes⁄Namefags are not only tolerated here, they are encouraged.
•We are here to discuss sci-tech, not pseudoscience. Do not post off-topic.

•♥ Integris


  • Supported file types are: GIF, JPG, PNG, WEBM
  • Maximum file size allowed is 5120 KB.
  • Images greater than 200x200 pixels will be thumbnailed.
  • Currently 494 unique user posts. View catalog

  • Blotter updated: 2011-01-12 Show/Hide Show All

There's a new /777/ up, it's /Trump/ - Make America Great Again! Check it out. Suggest new /777/s here.

Movies & TV 24/7 via Channel7: Web Player, .m3u file. Music via Radio7: Web Player, .m3u file.

WebM is now available sitewide! Please check this thread for more info.

polymeric falcighol derivation John 15/09/28(Mon)22:21 No. 16201 ID: e8c624 [Reply]

Youtube  c = λ/2 (1-λ/2)




Anonymous 14/10/27(Mon)22:39 No. 15950 ID: d126e2 [Reply]
15950

File 14144459653.jpg - (220.71KB , 791x1024 , pornography-791x1024.jpg )

What are the factual negative and positive side effects from watching pornography? I recently did some reading into this and found a lot of articles talking about how the neurons create stronger pathways to the brain from the pleasure reward that comes from watching pornography (much similar to the effects from taking drugs). This can lead to addiction and dependency on this type of stimulus to become aroused. So I come to you /sci, does pornography have a negative effect on the brain?


11 posts omitted. Click Reply to view.
>>
Anonymous 15/08/17(Mon)06:15 No. 16185 ID: 56cebc

>>16081
Ah, camaraderie. Good sex analogy there.


>>
Anonymous 15/09/16(Wed)04:44 No. 16194 ID: 93ff3e

>>16185
so, he only does it in public at bars?

macho.


>>
Anonymous 15/09/28(Mon)07:21 No. 16200 ID: 751c6d

>>16087
I'm the opposite. Porn doesn't work anymore, but real (casual) sex is even worse than porn. The only thing that works is being in love. But that also gets worse over time. Still works, unlike porn and casual sex, but I expect that this too will eventually stop working, even though I'm very much in love.

I don't mind a sexless relationship. It's really about the pleasure of being with the person, whatever form that pleasure may take.




Anonymous 14/04/18(Fri)01:45 No. 15631 ID: 0f9d09 [Reply]
15631

File 139777830659.jpg - (617.08KB , 575x1673 , exoearth-habitable-rocky-earth-kepler-186f-140416a.jpg )

So they found a new exoplanet that may be habitable, 490 light-years away. That is so great I guess Palestinians and Jews will stop killing each other now.


25 posts and 6 images omitted. Click Reply to view.
>>
D 15/09/18(Fri)18:16 No. 16195 ID: 7d9d65

I get up every morning and think, you know, since I'm jewish, I'm going to go kill some palestinians now.


>>
Anonymous 15/09/26(Sat)06:10 No. 16198 ID: b97d8a

That may sound like sarcasm, unless you're an israeli soldier then its like a daily prayer.


>>
Anonymous 15/09/26(Sat)06:18 No. 16199 ID: b97d8a

>>15898
20 billion? You're crazy. We barely have enough now. I guess you haven't kept up with how crops are strained to the limits of genetic modification and pest controls. Basic staples like rice that once took up a quarter of the third world's income to buy, now takes half or more because of supply (lack of it). Water.... large freshwater lakes are starting to lose water instead of maintaining and replenishing because of growing populations and especially industries using crazy amounts of it. TThe whole bottled water craze is accounting for big chunk of it, when the fact is that the bottled water you buy is probably siphoned from some far-off source that is specifically chosen because it's cheaper and less-regulated than a local source, and so the water in your bottle has probably been less thoroughly tested and treated than your municipal supply. Look, Europe has had to absorb about 100,000 syrian refugees and already they're feeling strained. And you think we can support an extra 12 billion? You should research what the Council on Foreign Relations thinks needs to happen to population.




Scientific proof beyond a reasonable doubt Anonymous 15/09/11(Fri)07:14 No. 16192 ID: a612ab [Reply]
16192

File 144194845548.jpg - (53.12KB , 960x640 , image.jpg )

The Jewish calendar accurately predicts the timeline of real world events such as these
http://youtu.be/lIFuruxOemc
In this example there are six major events that lined up with what you'd expect from what the bible says at spacings of precisely 7 years
Assuming that these events lining up are say a 1 in 100 chance that gives us 1 in 100^6 or 1 in 1,000,000,000,000 that this is coincidence
And I think 1 in 100 is a low estimate considering these are such major events

Furthermore pic related lists three dates
The first two are the exact dates on which there was an economic crash in America (naturally you can fact check this) and the third is predictive of another economic crash
These crashes line up exactly with the day on which depts are supposed to be cancelled in Jewish law and are both relevant to cancelled debt
There's 365 days in a year and 7 years per crash so assuming the crashes were 10 times as likely to happen around 7 years apart that's still a 1 in (365*7/10)^2 or less than 1 in 62,500


Because of these anomalies being predicted rather well I'd say that there is scientific evidence beyond reasonable doubt that the bible can predict major events
>but that's not scientific because it can't be tested
Did you forget about pic related
Message too long. Click here to view the full text.


>>
Anonymous 15/09/15(Tue)05:42 No. 16193 ID: ca3ceb

Variation of the 23 enigma.
The belief that events correlate perfectly with a specific number.
Pick any one number and you'll find correlation with something related to it.

So yeah it's coincidence. Because the number of events happening in the universe are too numerous to not correlate with a number. Especially one as small as the number 7. If you look elsewhere, you'll find other correlations with this number as well as the numbers 8, 9, 10, 11, and so on. With the increasing magnitude of a number comes the increasing improbability that something will correlate with it.

Also there was no economic crash yesterday. Myth motherfucking busted bro.




Global Address System: Earth's Surface Divided Into 3x3 Meter Blocks Anonymous 15/09/03(Thu)17:42 No. 16187 ID: 0948b1 [Reply]
16187

File 144129494182.jpg - (3.22KB , 256x144 , global-address.jpg )

http://3millionpage.com/index.php/internet/167-global-address-system-earth-s-surface-divided-into-3x3-meter-blocks


>>
Anonymous 15/09/09(Wed)00:58 No. 16191 ID: ca3ceb

My building currently contains roughly 20 addresses.
Which one am I supposed to put on my fucking tax return.




Computer Building Scrub Lord 15/09/01(Tue)19:43 No. 16186 ID: 8800e8 [Reply]

Youtube  Hello 7chan! I'm very new to computer building, stats, and products, etc. I have a 2009 hp pavilion that is ok at running games. I ran tf2 at 60fps and I'm looking to use sfm animation tool. I was wondering if I can have any advice on upgradeable parts I could install? I have 530$ US cash now and I could either upgrade my hp or build a gaming pc. Your comments would be very helpful!


>>
Anonymous 15/09/05(Sat)10:04 No. 16188 ID: 1d9efc

http://www.logicalincrements.com/




Nokia Cutter 14/09/30(Tue)10:08 No. 15900 ID: 91d0e5 [Reply]
15900

File 141206450791.jpg - (18.82KB , 630x420 , nokia-3310-071111.jpg )

Is it even possible to get an old Nokia phone on a modern service provider ? I realized that I never use my iPhone for calling so it would just be better to get an iPod and a different phone. What do you guys think ?


2 posts omitted. Click Reply to view.
>>
Anonymous 15/05/28(Thu)09:17 No. 16117 ID: 099b2d

>>16016
This. The UNIX philosophy.


>>
Anonymous 15/06/12(Fri)02:33 No. 16127 ID: 625843

>>15900
Depends on the networks that your phone supports and the networks that your carrier offers.


>>
Anonymous 15/08/01(Sat)14:42 No. 16179 ID: 0377cc

>>15900
It works in Finnish network and supports 2G WAP connections.




So, Pluto isn't a planet. Anonymous 15/07/25(Sat)21:37 No. 16177 ID: b3adbb [Reply]
16177

File 143785303060.jpg - (79.57KB , 1024x1024 , lor_0299148119_0x632_sci_3.jpg )

I've got news for your son.

That or its really good CGI and NASA has pocked our billions of dollars.




Anatomics design YoungDaVinci 15/07/24(Fri)22:11 No. 16175 ID: 9ea0ae [Reply]
16175

File 143776867759.jpg - (8.68KB , 275x183 , hand_3.jpg )

Hi to all engineers and designers which can help me, and I think doctors too.
I'm a guy which wants to design the most near to a reality hand just with wood pieces and syringes as hidraulic bomb.
I want to do this for my own and knowledge and becouse in the future i want to become and ortopedic engineer.

If anyone can help, please post drawings and sketches of the design of the wood and syringe hand.


>>
Anonymous 15/07/25(Sat)06:35 No. 16176 ID: ca3ceb

I just drew up some sketches and plans for the hand but decided to patent it for myself.




Anonymous 15/06/17(Wed)01:17 No. 16131 ID: f0a18c [Reply]
16131

File 143449664180.jpg - (36.78KB , 279x401 , Anatomical_Male_Figure_Showing_Heart,_Lungs,_and_M.jpg )

Does anyone know the estimated total length of veins in the human body ? And I'm not looking for that 60K miles trivia shit that counts all the capillaries. I just want the actual veins.


2 posts omitted. Click Reply to view.
>>
Anonymous 15/06/22(Mon)13:13 No. 16145 ID: f5d0cf

>>16144 is right, things we define as postcapillary venules are no different from capillaries except a widening lumen.


>>
Anonymous 15/07/04(Sat)02:27 No. 16170 ID: 325d67
16170

File 143596962555.jpg - (43.99KB , 460x573 , nature fact.jpg )

>>16132


>>
Anonymous 15/07/11(Sat)11:39 No. 16172 ID: 18b905

>>16170

At first I was going to say that the first couple of miles of elephants that are still in Earth's atmosphere wouldn't die because they can breathe, but then I remembered gravity is a thing.

And because of gravity, almost all (any of them that don't fall to the moon) of that column of elephants will immediately collapse downward toward the Earth onto those other elephants and then onto the ground in a giant puddle of elephant slop.

Anyway, the distance between the Earth and the moon is 238,900 miles, and the height of an average African elephant is about ten feet. So there are 126,139,200 elephants between the Earth and Moon. Anyway, the point of approximate neutral gravity between them is at 211,266 miles from Earth. Therefore, 111,548,448 of them will fall to Earth. The total weight of all those elephants is about 501,968,016 tons.

Using some questionably accurate ratios of masses of large asteroids related to their volumes, I estimate this huge weight of elephants would be about equal to that of a rocky asteroid of a size of 0.4 cubic kilometers, or about 0.75 km across.

So if the weight of all those elephants somehow compressed into a small dense sphere on the way down and hit the ground at once, it would release enough energy to equal about 16 gigatons of TNT.

Suffice it to say, all those elephants would be dead, seeing how they would be vaporized.




Delete post []
Password  
Report post
Reason