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/laboratory/ - A Controlled Environment

STEM Discussion


Winner of the 45rd Attention-Hungry Games
/s/ - Make 3D Great Again

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Now With Custom Flags!

File: 31e05a3d08fccb6⋯.jpg (598.94 KB, 1000x1000, 1:1, 3081474_1.1000x1000.jpg)

2fe5c3 No.265[Reply]

/Laboratory/ is a place to discuss Science Technology Engineering and Mathematics subjects, especially hands on experiments and testing.

Rules and Guidelines https://8ch.net/laboratory/rules.html

Other Boards https://8ch.net/laboratory/allies.html

Useful Links https://8ch.net/laboratory/links.html

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2fe5c3 No.278


I added yours to our page which contains links to related boards.

>I'd like to help you out some how. but not really sure how we could help you.

The best things a person can do to help us out is to post threads and replies that are relevant to the board topic. You can also mention our board and threads in relevant threads on other boards, and referring to boards and threads outside this one is perfectly fine when it is relevant.

It is our hope that people from various disciplines can have experiments repeated for confirmation, engineering issues explored, and that students and amateurs can learn more about their disciplines from those more advanced.

File: 20b18874b035384⋯.gif (997.27 KB, 500x475, 20:19, 1395900523003.gif)

522393 No.266[Reply]

For the first post-reboot thread I would like to invite those interested to post any graphics they feel would benefit the board. Those deemed worthy will become official /laboratory/ graphics.

Graphics are to be somehow relevant and fit the following sizes:

Banners 300 x 100

Flags 11-20 x 11-16

Spoiler 128 x 128

Deleted File 140 x 50

No file 500 x 500

Backgrounds Can be any size if they are in a repeating pattern, otherwise, as large as possible.

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522393 No.279

File: fea8a422a5c8c8f⋯.png (203 B, 20x16, 5:4, Astronomer.png)

File: 4fa0f5930b1747c⋯.png (295 B, 20x16, 5:4, Chemist.png)

File: 3b0a72b439a8e86⋯.png (242 B, 20x16, 5:4, Electrical Engineer.png)

File: dc33d1e65f3b1b5⋯.png (221 B, 15x15, 1:1, Geologist.png)

File: cafa5208c859b87⋯.png (197 B, 14x16, 7:8, Mathematician.png)

I have uploaded some flags for you all to use if you choose. If you don't see a flag for your discipline, let me know and I'll try to come up with one, or you can suggest an idea or finished flag in this thread.

I'm especially fond of the chemist one, it's cute. o3o

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522393 No.280

File: 66557f7e21b8f5c⋯.png (174 B, 20x16, 5:4, Mechanical Engineer.png)

File: 5a7ea09107540ac⋯.png (223 B, 20x16, 5:4, Physicist.png)

File: c6ac5011b2f47df⋯.png (239 B, 19x15, 19:15, Student.png)


…and here's the rest for now.

File: ee6d63f9a466b57⋯.png (2.04 KB, 227x222, 227:222, disclogo.png)

6d963a No.276[Reply]

A new server has been made due to the influx of spam in the previous one. We also had a shortage of pracfags. Feel free to join (back):


da3d7c No.277

For those interested: the above is a discord server with many categorized text and voice chatrooms, I lurk there myself. It has separate rooms for many subcategories of mathematics, some sciences, and a bunch of more general chatrooms.

File: ce658f7993867aa⋯.jpg (129.74 KB, 569x384, 569:384, Graham condenser.jpg)

File: f5c94128051c899⋯.jpg (182.72 KB, 1754x2480, 877:1240, Inland Revenue.jpg)

0a317f No.270[Reply]

As a starter question; what is the proper use for Graham condensers? Some say they are not condensers at all, but heat exchangers for liquids. Obviously when used as a condenser, they ought to be used in the vertical position, and always for distillation rather than reflux. I've heard it said that they are well suited to vacuum distillation, but I do not see how that would eliminate the "spitting" caused by air trapped behind/above the condensate which seems to be the main problem (when used in the vertical position).

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c56575 No.271

File: ab6d72c8ec170ea⋯.jpg (49.53 KB, 411x414, 137:138, Temperature regulating bat….jpg)


I've never used a graham condenser so I can't say for sure.

Temperature regulating baths are good for keeping constant temperature for certain experiments, like when extracting DNA from a sample.

c56575 No.272

File: ff7ac23f9cec155⋯.jpg (25.43 KB, 400x300, 4:3, gas chromatograph.jpg)

I recently read about a gas chromatograph, which can be used to vaporize a sample to determine the chemicals present in the sample. Some of this equipment might be expensive but its something that's nice to have when doing experiments.

0a317f No.275

File: 43d45c93099da6f⋯.jpg (1.29 MB, 2704x2160, 169:135, Zimbabwe_Hyperinflation_20….jpg)

File: 396b25dfc0c6a6a⋯.jpg (18.15 KB, 200x200, 1:1, 1425479491262.jpg)



Yes very, it is worth pointing out that the average professional chemistry lab is an expensive proposition, and the amateur home chemistry kit is not going to make any groundbreaking discoveries, though a certain amount of practical chemistry is still possible without breaking the bank, and of course has educational value.

File: 9f25585bb77d87a⋯.png (7.14 KB, 121x192, 121:192, HowUSit.png)

bb57a3 No.263[Reply]

So where do i go to figure out my future career? I know Tech (Software adn Firmware) is the path for me but i don't know what specialization to go into. Any help?

(Pic unrelated, but how do you sit /labro/s?)

68d291 No.274


Have you already identified any passion within yourself? Anything you feel strongly about doing in specific? Finding some kind of inner drive within yourself will be key to finding a satisfying career anon. Me, I always dreamed of having an artificial intelligence friend so AI is naturally a personal interest I pursue in education and work.

File: 52724a14e0c67a7⋯.pdf (1.31 MB, explaining_logarithms.pdf)

File: 220dfa9a8f3858d⋯.pdf (1.7 MB, Trigonometry Michael Corra….pdf)

File: 3247dc3ce3a13bd⋯.pdf (103.49 KB, Exact_Trig_Values.pdf)

File: c71f09db882cdd9⋯.pdf (2.84 MB, Shop_Arithmetic_for_the_Ma….pdf)

83fd0d No.269[Reply]

As for actual content let us start off with some nice pdfs. Since math is the basic tool of all science and engineering, it is only fitting to start with a math thread.

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