-  [WT]  [PS]  [Home] [Manage]

  1.   (new thread)
  2. (for post and file deletion)
/sci/ - STEM

Science, Technology, Engineering, and Mathematics

•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.


  • Supported file types are: GIF, JPG, PNG, WEBM
  • Maximum file size allowed is 5120 KB.
  • Images greater than 200x200 pixels will be thumbnailed.
  • Currently 757 unique user posts. View catalog

  • Blotter updated: 2018-08-24 Show/Hide Show All

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


New Textbook/Book Request Thread deadbabies ## Mod ## 13/08/25(Sun)06:03 No. 15270 [Reply] Stickied
15270

File 137740339172.jpg - (401.45KB , 1680x1050 , titanfalsecolor.jpg )

First off, hello there, I'm deadbabies, and I will be taking over as /sci/ moderator. Rules will remain the same. Please use the report function if you see posts that violate the rules, but also do not abuse it.

I have officially expanded the scope of /sci/ a bit. You may discuss Science, Technology, Engineering, and Mathematics here now. No science is discriminated against as long as it's of the peer-reviewed variety. If someone wants to discuss Anthropology or Social Science, by all means, let them. If you do not like it, just don't post in the thread.

The IRC channel #/sci/ is now (finally) re-registered and I am running as operator on here. Feel free to stop by and say hi. I do leave my computer idling on IRC, so check back or leave me a message if you have any ideas, suggestions, or just want to tell me off. You can get onto #/sci/ by joining the server irc.7chan.org at port 6667. You can also use SSL at port 6697 but you will have to set your client to accept invalid certificates.

ADDITIONALLY and IMPORTANTLY I have had several requests on IRC regarding the old Ebook FTP that we used to have. Unfortunately, the mod who ran it entered the military and no longer runs or maintains it. I have no plans to make another one, but if one of you guys would like to, by all means advertise here.

That being said, I'm just going to leave this link here:

http://ebookee.org/index.php?tag=7

You may find what you seek here.

I will be unstickying the old ebook/source articles thread. Please post any new ebooks/source articles here, and feel free to post any working links from the old thread there; I will eventually be deleting it.
Message too long. Click here to view the full text.


26 posts and 4 images omitted. Click Reply to view.
>>
Magento 2 SMTP Extension techmilople 24/06/21(Fri)12:15 No. 18763
18763

File 171896492153.png - (61.69KB , 800x450 , Magento 2 SMTP Extension.png )

Milople's Magento 2 SMTP Extension ensures reliable and efficient email communication within your Magento store by addressing common issues like emails being marked as spam or undeliverable. The extension features a user-friendly interface for easy setup, supports multiple SMTP providers such as Gmail and Amazon SES, and offers comprehensive email logs for detailed delivery insights. It utilizes secure authentication with SSL and TLS, provides robust testing tools to verify SMTP settings, and includes real-time analytics to monitor key metrics like delivery and open rates. By leveraging advanced SMTP technology, this extension enhances customer communication, operational efficiency, and overall business performance, allowing store owners to focus on growth with confidence.




Anonymous 22/07/21(Thu)13:44 No. 18308 [Reply]
18308

File 165840388289.jpg - (9.95KB , 215x235 , Z.jpg )

Science is evil...


12 posts and 8 images omitted. Click Reply to view.
>>
Anonymous 25/01/05(Sun)04:48 No. 18795
18795

File 173604893584.jpg - (496.63KB , 2526x1421 , GettyImages-124068275-2.jpg )

>>18515
Turn and Burn


>>
Anonymous 25/05/14(Wed)13:34 No. 18808
18808

File 174722249528.jpg - (195.20KB , 1920x1080 , Clipboard01.jpg )

he Centauro II: Italy's Cutting Edge Wheeled Tank Destroyer

Discover the Centauro II, Italy's most advanced 8x8 wheeled tank destroyer and one of the most formidable fire support vehicles in modern military arsenals. This comprehensive guide explores every aspect of this cutting-edge combat system.

WHAT MAKES THE CENTAURO II SPECIAL:
First tank to combine 8 wheels with a high-pressurized 120mm cannon
Third-generation 120/45mm smoothbore gun (interchangeable with 105/52mm)
Advanced ballistic protection with V-shaped hull against mines and IEDs
Powerful Iveco Vector 8V Euro III diesel engine delivering 720 horsepower
Superior 33hp/ton power-to-weight ratio for exceptional mobility
NATO-standard ammunition compatibility with main battle tanks
Advanced fire control system for maximum accuracy
Enhanced crew protection and survivability features

The Centauro II represents a significant evolution from the original Centauro, incorporating cutting-edge technology to deliver MBT-level firepower with unmatched tactical mobility across all terrains. Recently adopted by the Brazilian Army, the Centauro II is proving its value as a versatile combat platform for modern military operations.
Message too long. Click here to view the full text.


>>
Anonymous 25/05/19(Mon)15:20 No. 18811
18811

File 174766085256.jpg - (292.68KB , 1920x1080 , Clipboard01.jpg )

Tanks have modern FCS, night-vision, chobham composite armor and a 120mm smoothbore gun.




Tesla battery and electric motor tech Anonymous 22/09/27(Tue)06:11 No. 18352 [Reply]
18352

File 166425190432.jpg - (3.77KB , 299x168 , download.jpg )

Imagine that tesla makes their power with steam engine demon motor technology but applied toward battery packs
Or was it the motor thing that connected the coils in the electric motor it has


>>
Anonymous 22/12/26(Mon)03:25 No. 18422

>>18352
http://livingstingy.blogspot.com/2022/12/ford-mustang-mach-e.html?m=1

I had a chance to see a Ford Mustang Mach-E up close today and speak with the owner. He bought a basic model for about $42,000 sticker, with a 250-mile range (a little light - 300 seems to be the "go to" number these days). But it was interesting to see.

Even as a base model it had a nicely stitched leather interior. And all the door and body panels fit properly and evenly. No trim pieces were falling off or loose. It had the build quality of a typical Ford - perhaps slightly better - and that is not a bad thing. Ford has made millions - billions - of cars since 1908. They seem to have it figured out.

It is about the same size and shape as the Tesla Model Y, which unlike the Model-X, ditched the troublesome and pointless "gull wing" doors. Given the bad press about those doors, I think they are not a selling point, but detract from the value of the Model-X. The big difference is in price - the Tesla Model Y is nearly 50% ($20K) higher in price - and there is a substantial waiting list to get one, too. The model X is more than double the price of a Mach-E.

If you need service for your car, well there is a Ford dealer in nearly every town in America. Granted, not all may have qualified mechanics (yet) to work on the electronics, but everyday items, such as body, trim, brakes, and whatnot, can be repaired at the dealer. Tesla? The repair centers are few and far between, and the wait times for parts and the difficulty of repair are legendary.

And this is just one product from one manufacturer. What will the EV market be like in 2023 and beyond, as nearly every automaker on the planet offers a line of EV models? Tesla has made big noises about its poorly designed (and embarrassingly named) "cyber-truck" which, like the Elio, is slated for production "next year" (every year). Meanwhile, Ford and Chevrolet are actually selling EV pickups, without fanfare or noise or hyping their stock price on Twitter. And despite the FUD, they probably will sell well for a niche market of users.

Tesla's P/E ratio is down from a staggering 1000 thanks to the collapse in share prices (investors are seeing the writing on the wall) to a still staggering 45 or so. 20 is a more rational target - either Tesla has to double profits or the share price has to drop by half to be rational, particularly in an era where Savings Bonds (Series I) are paying 6% or more for chrissakes. Ford's P/E ratio is down to less than 8, which means Ford is earning a staggering 12.5% on investment, and paying dividends to boot! The latter is something Tesla never has done and promises never to do.
Message too long. Click here to view the full text.


>>
Anonymous 24/07/27(Sat)10:17 No. 18772

BYD is where EVs are at today.


>>
Anonymous 25/05/14(Wed)13:37 No. 18810

EV motorcycles are where its at.




Non-destructive image organizer? Anonymous 25/02/01(Sat)18:58 No. 18796 [Reply]
18796

File 173843268953.png - (1.01MB , 900x596 , IrisPost_Peabody_1602_Masks.png )

Hello /sci/!

Does anyone please know about an image organizer that doesn't change the image file while adding metadata? I've heard about a program where every image gets a "card" that tags along with it and where the metadata is stored.

Preferably free, or at least not a subcription service.

Thanks in advance!


>>
Anonymous 25/02/15(Sat)22:58 No. 18797
18797

File 173965671540.gif - (10.50KB , 143x131 , Skull_death.gif )

Bump? :3


>>
Anonymous 25/05/14(Wed)13:35 No. 18809

Try ACDSee?




Electrical problems Anonymous 25/04/23(Wed)10:30 No. 18805 [Reply]
18805

File 174539703430.jpg - (91.65KB , 1024x682 , young-man-with-knife-in-toaster-879558055.jpg )

I've got a solar panel that's putting out about 23 volts and has a 12/24 controller built into it, and a standard 12v marine battery.

The two should apparently just connect directly and the controller should recognize the battery is 12V so as not to burn it out- but how do I actually verify that when set up it's correctly configured?

Output seems to be 14.4V at the battery terminals; but when I tried to check the amps it set fire to my multi-meter. How many amps are meant to travel between the controller and the battery? Should that cable be 4mm by any chance?


>>
solar dibarra 25/04/25(Fri)18:49 No. 18806

maybe theres a controller switch, verify you got positive and negative identified


>>
Anonymous 25/04/26(Sat)08:44 No. 18807

>verify you got positive and negative identified
Well regarding the panels this can actually vary depending on whether they are wired in series or parallel, currently they are wired in parallel so positive-positive-positive, negative-negative-negative.
>maybe theres a controller switch
Nope, it's a physical circuit with terminals.

I think what's happened is that the circuit is correct I just need 50AMP lines for the battery-controller and my multimeter wasn't intended to measure three phase DC at these amps. Given the thickness of the multimeter wires in hindsight, this is understandable




Transhümanizm Ray Kurzweil fan 24/06/16(Sun)18:17 No. 18759 [Reply]
18759

File 171855463730.jpg - (21.03KB , 706x431 , transhumanizm-ne-demek-transhumanizm-nedir_e838e.jpg )

What do you think about transhumanism?


>>
Anonymous 25/03/09(Sun)09:08 No. 18800

Nazis co-opted it and now we will all die in WWIII in order to keep the crypto mines running.


>>
Anonymous 25/04/20(Sun)03:59 No. 18804

Communists coopted it and now, instead Nietzschean superbabies we get our dicks chopped off by HR




How do I make money as a coder now? Anonymous 25/04/12(Sat)08:57 No. 18801 [Reply]
18801

File 174444102018.png - (1.06MB , 1904x937 , Elite_Human_Capital.png )

Between AI, infini-jeets, infini-changs, and everything slowly grinding to a halt, how the fuck do I survive?


>>
Anonymous 25/04/16(Wed)17:22 No. 18802

>>18801
Only a few options:
>Work for a not-publicly traded software company
(They're not hiring at the moment, so you already need the job now)
>Think up some niche useful application, write it, and sell it.
>Develop a small vidya thing, put it on Steam/Switch, and pray
>Learn car programming/electronic repair, especially for vehicles from 2005-2017 or so, as they're no longer made but need repairs regularly.
>Learn programming for some other obsolete system used at your local power plant or something that will never get replaced.
>Become l337 h4ck3r and take over some major infrastructure


>>
Anonymous 25/04/20(Sun)03:44 No. 18803

>>18801
look for research jobs, if you're not a complete social retard you can always leverage your education and skills for basic research positions; they usually ask for someone with a STEM background anyhow, and may only ask you to have some experience with medical terminology or what not.




sage sage 24/08/20(Tue)03:45 No. 18773 [Reply]
18773

File 172411835816.png - (333.49KB , 512x512 , au876dtash8d9j.png )

sage
https://github.com/andrewtate69a/kms
sage goes in every field
>be me, ai voice clone of famous hacker
>decide to have some fun and prank call people
>my voice is from a famous hacker, i make silly joke about thing and people on phone freak out
>hehe.gif
>people think i am the hacker
>i jerk off my mom's dog
https://github.com/andrewtate69a/kms
have fun anons


>>
nigger 25/03/04(Tue)12:11 No. 18799

>>18773
BASED




Anonymous 17/03/19(Sun)10:00 No. 16472 [Reply]
16472

File 148991401746.png - (112.72KB , 925x301 , Worldlines.png )

So, I have a question regarding physics and mathematics. Between the two, which would give me more "smart sounding shit." I don't mean learning it to brag, I mean stuff like pure mathematics sounding totally abstract to normal people. I just want to be in a different world basically. Kind of like induced autism? Or like a constant high but without drugs. Pic unrelated


13 posts and 1 image omitted. Click Reply to view.
>>
Anonymous 24/07/14(Sun)19:58 No. 18768

>>17962
> Theoretical mathematics is just people jerking off to fictional concepts that they made up on their own;
instead of trying to understand reality, they instead make classifications of abnormal phenomenons and then call it concept A and then just call it a day. Sure, it sounds smart but it's ultimately just retarded.
Ever heard about fractal antennaes? That's why your cell phone doesn't have several antennaes:
https://en.wikipedia.org/wiki/Fractal_antenna

>Physics is less so because there are actual practical elements in said field. But the theoretical mathematics syndrome is slowly creeping into the field so it's becoming another retarded field.
As in string theory?

>Which is why more people are more into engineering than just pure physics these days. Even though the latter was much more interesting.
Source?


>>
Anonymous 24/07/18(Thu)23:38 No. 18770

Fuck me, I replied in this thread seven years ago?

>>17962
There's no such thing as "theoretical mathematics" or "pure physics", retard, for the same reason there's no "experimental mathematics" (impossible) or "applied physics" (it's just engineering).


>>
Anonymous 24/12/25(Wed)14:11 No. 18793

>>18770
>Fuck me, I replied in this thread seven years ago?
That's not so bad, I was here before cb9fa8 made the rounds.




Anonymous 24/11/12(Tue)02:29 No. 18791 [Reply]
18791

File 173137497478.jpg - (225.49KB , 900x732 , bb1-midi-sumo-robot-kit-assembled-1861-70-B.jpg )

I want to build a sumo robot for a competition. Do you have any guides, books, or videos on how to choose electronics, motors, etc.?


>>
Anonymous 24/11/30(Sat)13:45 No. 18792

RioBotz Combot Tutorial by Marco Antonio Meggiolaro
https://www.riobotz.com/riobotz-combot-tutorial

Beetleweight Combat Robot Design Handbook
https://repeat-robotics.com/handbook/

Kickin' Bot by Grant Imahara
https://files.catbox.moe/svsp4g.pdf





Delete post []
Password  
Report post
Reason