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We're recovering from a major server loss and are restoring backups as we gain access to them. Don't mind the odd time warp. Warn us in the future.

Magic car bunghole by Jenny Clayridge - Thu, 25 Apr 2013 04:47:14 EST ID:4EHoLFFG No.5589 Ignore Report Reply Quick Reply
File: 1366879634574.jpg -(8297B / 8.10KB, 200x139) Thumbnail displayed, click image for full size. 8297
I already showed this to /chem/, but I think this could be torn apart some more, and it falls under /tesla/'s purview, so let fly.

Basically, this guy's friend just fell off the turnip wagon and wants to invest in magical car assholes forged from a special alloy of unobtanium, handwavium, and pure, weapons-grade balonium.

Apparently it works because of atoms, and oxygen, and fucking magnets.
And if you don't believe in z55555, it's because your primitive intellect wouldn't understand allys and compositions and things with molecular structures.
Sidney Fobberspear - Thu, 25 Apr 2013 15:54:58 EST ID:Jr33UkvF No.5594 Ignore Report Quick Reply
this motherfucking picture
you decrease airflow like a raging motherfucker with that bitch, you`ll get less oxygen in you engine. I believe that turbo compressors do the opposite and have been proven effective technology. this can never work from a technical perspective, let alone the bullshit on molecular level
Hamilton Sirringnine - Fri, 26 Apr 2013 01:09:00 EST ID:mbW+t54X No.5597 Ignore Report Quick Reply
Ive found a knockoff already, lol.

Matilda Higglefag - Fri, 26 Apr 2013 13:03:56 EST ID:afgIB1td No.5598 Ignore Report Quick Reply
read the technical page, haven't laughed that hard in a while
Ernest Wacklesidge - Fri, 26 Apr 2013 13:23:45 EST ID:CnxBC+8U No.5599 Ignore Report Quick Reply
What scares me is most average consumers will believe that shit.

Food dehydrator by Barnaby Clondermedge - Fri, 12 Apr 2013 10:35:14 EST ID:8n/Y7E8q No.5559 Ignore Report Reply Quick Reply
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I am thinking about building a food dehydrator. There are many very simple plans on the internet that use an incandescent light bulb or an old hairdryer or similar things to heat up the insides of a simple wooden box with a door and space for racks on which to place food.

But the best food dehydrators on the market have adjustable thermostats. So if I wanted one of those I'd have to make or construct a simple thermostat to put inside that can switch the heat on and off depending on the temperature. Any thoughts on where to source this or how to make a one?
4 posts omitted. Click Reply to view.
Isabella Chittingkan - Mon, 22 Apr 2013 19:59:05 EST ID:buTeoEHV No.5582 Ignore Report Quick Reply
d'oh, i forgot,

you'd create a variable temperature and say
temperature = Convert (data);
instead of what was written above.
Albert Dimmleham - Thu, 25 Apr 2013 15:06:56 EST ID:8n/Y7E8q No.5592 Ignore Report Quick Reply
This is excellent info, thanks a lot. I know programming, I know C pretty well and as I understand there is a compiler for most microcontrollers out there. Can you recommend a cheap microcontroller? Will it maybe be easier to use some flavour of the arduino?
Albert Dimmleham - Thu, 25 Apr 2013 15:09:24 EST ID:8n/Y7E8q No.5593 Ignore Report Quick Reply
I didn't mean to sound cocky there, sorry about ballsing up the atmosphere of the place.

I'll keep you posted on my progress in the matter.
Hamilton Sallysag - Thu, 25 Apr 2013 22:50:00 EST ID:buTeoEHV No.5595 Ignore Report Quick Reply
Nonsense good sir,

I think some version of the arduino will be fine. No sense buying a microcontroller with lots of features like wifi, OLED screens or onboard speakers if you're just going to have it operating a custom appliance.

I saw that TI was releasing this the other day.
$13 is not a bad fucking price at all for a microcontroller.

It supports floating point, contains 12-bit ADCs and flash-programmable EEPROM.

You'll want to look in some electronics places for high temperature wire and high temperature thermoresistors or even active temp sensors if you'd like.

I think this has its own compiler or API, but Keil Microvision will work too and the demo is free. It has a software size limitation but I've written programs more complicated than this under that limit.
Hamilton Sallysag - Thu, 25 Apr 2013 22:50:20 EST ID:buTeoEHV No.5596 Ignore Report Quick Reply
Ah crap, forgot the link.

Energy yo by Ernest Bunshit - Tue, 12 Mar 2013 01:10:10 EST ID:u/kJ3r46 No.5477 Ignore Report Reply Quick Reply
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Current second year chemical engineering major...
Anyone know a better way to turn work into energy, or vice versa, other than the steam cycle? That would solve our energy problems.
13 posts and 3 images omitted. Click Reply to view.
Martin Dremblestone - Sat, 13 Apr 2013 01:39:13 EST ID:GKyi9Vnn No.5564 Ignore Report Quick Reply
the only energy that we can truly harness responsibly is heat from the sun, in whatever form it shows itself. whether it be focusing rays, solar cells, or wind
Lydia Mammlestone - Sun, 14 Apr 2013 11:31:00 EST ID:LovN/bXl No.5566 Ignore Report Quick Reply
All energy we can harness is derived by the sun.
Well, nuclear comes from other suns, but w/e.
Lydia Mammlestone - Sun, 14 Apr 2013 11:32:27 EST ID:LovN/bXl No.5567 Ignore Report Quick Reply
I mean derived from the sun, give us back delete, nb, etc.
Jenny Pickham - Fri, 19 Apr 2013 15:30:14 EST ID:N+m0RwSh No.5570 Ignore Report Quick Reply
There are all sorts of ways to turn heat into useful forms of energy. It's just that the steam cycle is still the most efficient for large scale power generation. Cars turn heat into work without steam. They're way more compact, but they're not nearly as efficient.
Jenny Clayridge - Thu, 25 Apr 2013 05:25:02 EST ID:4EHoLFFG No.5590 Ignore Report Quick Reply
What about geothermal?

Audio Electronics by Nell Bruffingsudge - Wed, 10 Apr 2013 07:34:50 EST ID:m7gIZk3I No.5556 Ignore Report Reply Quick Reply
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I've been interested in the subject for some time now and started my first project. Without proper research, just my own vision.
I bought a new bass since the old one was cheap shit. However the old one had more powerful EQ. Both have active pickups. I figured I've got no use for the old bass so I'd take the hardware out, put it in a box and run my new bass signal through it.

At first I got signal go through connecting TRS cable to the OUT wires with tape and the signal IN came from Bare, Yellow or Black inside those grey fat ones (both hold inside yellow, black, white, red and bare (white and red are grounds I guess, since they have been connected together with tape at the end of the fat one, fucking chinese engineers). Hope this made sense.

No matter where I made the signal go (yellow, black, bare or all of them) the knobs didn't alter the sound. Battery connected or not didn't make a difference. So what I'm asking here is, are these knobs controlling the pickups so that the pickup alter the EQ levels, if so, what does the chip do? I think the four knobs are low end, mid/high end eq's, volume and pickup mix.

Now when I try to connect it the same way it just spits out buzzing sound.
<- Messy picture

Feel free to point me in right direction. Where can I study this shit? What am I doing wrong?
Doris Trotridge - Wed, 10 Apr 2013 18:06:27 EST ID:buTeoEHV No.5557 Ignore Report Quick Reply
When you took the EQ out of the first guitar what did it look like?

>So what I'm asking here is, are these knobs controlling the pickups so that the >pickup alter the EQ levels, if so, what does the chip do?
Since everything is plugged into the board and they're active pickups, it's a safe bet to say that's where everything is being filtered or boosted from, as well as the volume most likely.

It's hard to tell what everything is, but I would assume the signal flow would go something like this:
Pickups -> pickup selector -> tone knobs -> volume knob -> out.

Now since it seems this is an active circuit it's possible those pots are just controlling the chip to do the tone controls, but I just realized, I'm not sure if any of this will matter.

Are you trying to connect the output of your new bass with the input of this and then send THAT to the amp?
That won't work quite as well if at all because the circuit is probably expecting an unamplified signal, and this EQ/preamp amplifies it.
If it does work, like say reducing the level before going back in.I think connecting that many components in line could add some serious noise to your sound, not to mention turning down a signal and then re amplifying it can be really noisy.
Comment too long. Click here to view the full text.

Unsure by Eliza Berryworth - Fri, 05 Apr 2013 07:26:24 EST ID:jhIUsBBF No.5547 Ignore Report Reply Quick Reply
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Hello /tesla/
I am currently 19 and am thinking about trying to major in engineering. I like seeing how things work, and did fairly well in math and science in high school. But I am extremely uneasy about making such a commitment (6-8 years?) and dropping ~50k for tuition and say... ~70k for living expenses for those total 6-8 years. I also hear engineers have nearly no free time during college.

I don't know what to do. Is this normal to have to drop that much money with loans? Is that what some of you are doing? And how did you figure out if engineering was the right path for you?
Isabella Fonnercocke - Sat, 06 Apr 2013 02:23:15 EST ID:h/f6Un+K No.5549 Ignore Report Quick Reply
>6-8 years?
only if you take 12 hours a semester and have 3+ co-ops, its pretty reasonable to finish in 4-5 years with one co-op. most of my expenses were covered by scholarships and some money from my parents so ill be graduating debt free, ~50k is about right for a state sponsored uni, living expenses depend on where you live. the last 3 semesters have been pretty stressful with work I only go out once a week or so.
I would have been happy with math, physics, comp sci, or any engineering but chemical, I settled on mechanical engineering because my school has a very good engineering program, and it's easy to find jobs in my area, but there's a fairly good demand for them in most parts of the country if I decide to move later.
Cedric Dobbermud - Sat, 06 Apr 2013 03:52:33 EST ID:r+me8oJ/ No.5550 Ignore Report Quick Reply
As stated before, it's a 4 year program. I did a Mechanical/Electrical degree and it took 4.5 years because I was an idiot and got involved with a Sorority girl who turned out to be a whore. If you can, live at home - it costs $8,000 a year in Canada for Engineering tuition, and I paid it all off by working in the Oil Sands.

You only don't have time if you can't manage it. I was able to go drinking once or twice a week with my study habits, just make sure you stay on top of your work.

Also, being able to do math pretty well in High School is a good indication of you being able to learn the more advanced stuff. Just don't go in all hot shit like a lot of people, because in the end, it's not what you learned from high school, it's the process of how you learned it.

electroplating by Lillian Geblingdod - Tue, 02 Apr 2013 23:27:49 EST ID:w2QHIx2p No.5544 Ignore Report Reply Quick Reply
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is it possible to paint something in silver flake paint and then electroplate it? Are paints conductive enough?

This shit, what the fuck is it? by Nigel Fanbury - Sat, 30 Mar 2013 12:49:00 EST ID:+k5EaOMo No.5535 Ignore Report Reply Quick Reply
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What the fuck is this shit?
1 posts and 1 images omitted. Click Reply to view.
Fanny Dudgechod - Sun, 31 Mar 2013 07:44:09 EST ID:1DGCppat No.5537 Ignore Report Quick Reply

>Fuelless gravity engine

I smell shiiiiiiite! Sounds like some crackpot perpetual motion engine.
David Crundlestadge - Sun, 31 Mar 2013 15:56:32 EST ID:4TXNiIqH No.5538 Ignore Report Quick Reply
Nope, not even close.

It's a crackpot free energy engine.
Phineas Higglesin - Sun, 31 Mar 2013 19:25:20 EST ID:wai1gVQN No.5539 Ignore Report Quick Reply

free energy machines are called perpetual motion machines in thermo
Archie Cricklepork - Mon, 01 Apr 2013 17:41:28 EST ID:ND8I/rne No.5542 Ignore Report Quick Reply
My boss told me all about free energy and how it's everywhere and big oil doesn't want us to know. I hate agreeing in fear of losing my job. 1 word rebuttal: Thermodynamics.
David Foddlehood - Mon, 01 Apr 2013 22:51:47 EST ID:AInfxL6X No.5543 Ignore Report Quick Reply
op it's scam peddled by someone who understands neither thermodynamics nor four-bar linkage design.

Choices choices by Nicholas Dingerlock - Sun, 06 Jan 2013 16:33:05 EST ID:JHZsD1Ts No.5285 Ignore Report Reply Quick Reply
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So soon I will need to make a choice. I am studying a general engineering course, but soon I will have to decide which course I want to do next year. Right now it's between

"Computer, Communications and Computer Engineering" and "Mechanical Engineering"

I love programming and find computers fascinating but I find the problems in mechanics very intuitive and I like mechanics.

Can anyone help me with some information on these two specialities? Any pros/cons?
1 posts omitted. Click Reply to view.
Jenny Blonderstat - Wed, 09 Jan 2013 20:38:46 EST ID:U8RLD8ms No.5304 Ignore Report Quick Reply
Im doing a double degree in both of those! comp sci and mech eng.

The mech has always been easier for me, due to the huge amount of memorization present in comp sci.
However, i am a far superior engineer because of my programming skills. So much of Mechanical engineering has been based off of empirical testing that many engineers can scrape by without programming well. With new technology, many of these fields are evolving to use computational solving. Finite element analysis, fluid dynamics, even stress and strain modeling for beams can be approximated with greater accuracy and without the massive "fudge" factor that used to be necessary.
However, with hindsight i now wish i had simply finished mechanical before doing the programming, as I'm very broke and I'd love to have a ring on my finger and a good job. On the other hand, i can actually make you a robot competently without going DURR DURR gearing? or DURR DURR computers?

TLDR Mech eng, but program in your spare time; its pretty damn useful.
Edwin Bunshaw - Thu, 10 Jan 2013 00:12:13 EST ID:nwxojBqh No.5307 Ignore Report Quick Reply
Ive done some leisure time programing but unless you intend go into robotics or write fea or cfd programs I don't see it being necessary/particularly benificial for a mechanical engineer.
Jenny Smallson - Sun, 13 Jan 2013 06:38:49 EST ID:Pjytneps No.5319 Ignore Report Quick Reply
Uh..mechatronics ?
Ebenezer Ciffingfuck - Sun, 31 Mar 2013 22:28:24 EST ID:WGWITgF+ No.5540 Ignore Report Quick Reply
well im studying mechatronic engineering. its pretty badass. try that.
Hamilton Pucklefuck - Mon, 01 Apr 2013 14:56:27 EST ID:Jr33UkvF No.5541 Ignore Report Quick Reply

Self-Review questions. by Shit Croshtire - Sat, 30 Mar 2013 00:54:38 EST ID:N2gcVF14 No.5532 Ignore Report Reply Quick Reply
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Does anyone know of a database of self review questions for different subjects?

Self study here, reading a book on electricity. I was making good progress on the book, until about the middle when it got into AC and complex-circuit analysis. The book only gives you about 10 questions at the end of a chapter, with no answers to check.

Pic related, the book I'm reading.

what do? by Doris Dacklestidge - Sun, 23 Dec 2012 11:57:00 EST ID:Jr33UkvF No.5244 Ignore Report Reply Quick Reply
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Hello tesla, I live in holland and, if all goes well I will finish my study of mechanical/metal engineering this year. but I want to get a bachelor or masters degree in the direction of engineering/design/innovation/environment/durability/eco friendly stuff. Does anyone on here do a study like that? and how`s it called and where do you follow it? I`m willing to leave holland for my study if I can find one.
please enlighten me with your knowledge /tesla/
Ernest Turveyway - Mon, 07 Jan 2013 15:29:23 EST ID:Jr33UkvF No.5291 Ignore Report Quick Reply
OP here, bumping in the hope of an answer
Simon Conderman - Tue, 08 Jan 2013 09:17:25 EST ID:WJMI4Ecc No.5294 Ignore Report Quick Reply
Check maritime engineering since they apply metal/mechanical engineering and there is great progress in eco friendly systems and laws regarding merchant navy ships. Try man b&w in denmark, sulzer, wartsila or shinko(particularly oily water separators and sewage treatment plants)
Eliza Smallbanks - Thu, 10 Jan 2013 12:47:29 EST ID:rL4bNMYM No.5310 Ignore Report Quick Reply

I approve of maritime engineering.
Thomas Blanningson - Mon, 25 Mar 2013 16:21:36 EST ID:Jr33UkvF No.5518 Ignore Report Quick Reply
>lurk /tesla/ after a while
>hey I know this thread
>oh wait I`m OP

anyway, I have decided to settle with Industrial Product Design (Industrieel Product Ontwerp in dutch), an engineering major and will do my minor on sustainable design. really looking forward to it!
now lets just hope I`ve passed my exams
Isabella Fendlebot - Tue, 26 Mar 2013 18:57:46 EST ID:rL4bNMYM No.5523 Ignore Report Quick Reply

Haha, same here.

I still approve of maritime engineering.

Or failing that, maritime officer.

To build.... or not to build..?? by Phineas Craffingkune - Wed, 28 Nov 2012 20:13:52 EST ID:YJYWoo8g No.5168 Ignore Report Reply Quick Reply
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Hey /tesla/

wondering if any of you guys could point me in the direction for further reading into engineering my own sound system..... or do think it is too ambitious to attempt such a feet as I have done nothing of this nature before??

Graham Feddlechon - Wed, 28 Nov 2012 23:08:43 EST ID:GX8aNZRo No.5169 Ignore Report Quick Reply
Here are some circuit diagrams that are related to this.


Building your own speaker boxes would be fairly easy, but it's probably easier to just buy those, the amplifier will be enough work as it is.
Thomas Blanningson - Mon, 25 Mar 2013 16:31:47 EST ID:Jr33UkvF No.5519 Ignore Report Quick Reply
depends on what exactly you want to do, if you just want to build speaker boxes for your sounds system then I reccomend you take the right speakers with them. everyone on the internet says it, though I have not ever seen an argument for or against it.
here are some sites for speaker building (the first two are in dutch but I fthink you`ll be smart enough to figure out the designs):

and for the love of god, tell me you`re going to make a free party system in europe.

Trompe by Edward Grandman - Wed, 13 Feb 2013 01:25:44 EST ID:9z6+JHTP No.5405 Ignore Report Reply Quick Reply
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This is a Trompe.
it can make a virtually inexhaustible supply of free compressed air

This system could eliminate the dependancy on oil (that's why it's so unheard of). It is the best form of renewable energy and badly needs development and publicity.

Just planting seeds...
7 posts and 2 images omitted. Click Reply to view.
Jarvis Fuvingwell - Wed, 27 Feb 2013 09:35:29 EST ID:buTeoEHV No.5452 Ignore Report Quick Reply
Yes I know, he shows it, as well as an electric car from the early 20th century pre-highway times. Point is the microbial biofuel.
Fuck Hashwidging - Wed, 27 Feb 2013 14:15:28 EST ID:8dHwpz0J No.5453 Ignore Report Quick Reply
there are different kinds of biofuel...
Shit Brookshaw - Wed, 27 Feb 2013 21:36:40 EST ID:buTeoEHV No.5454 Ignore Report Quick Reply
Yeah that's why I used the descriptor "microbial" in front of it..
Augustus Gupperkeck - Thu, 21 Mar 2013 20:31:07 EST ID:3EWmJhWK No.5507 Ignore Report Quick Reply
What if we get overdependant on oxigen?
John Pittshaw - Tue, 03 Jan 2017 13:12:04 EST ID:Je+bVbOx No.7034 Ignore Report Quick Reply
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