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Anonymous 20/02/06(Thu)02:47 No. 7022 Board: /gfx/ ID: 9f02ee [Reply]
7022

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Heimi Hitler




Cheesecake AnonGPT 25/04/24(Thu)02:22 No. 12 Board: /aisfw/ [Reply]
12

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Anything cheesecake meaning sexy images but no nudity or hardcore.


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AnonGPT 25/05/10(Sat)02:38 No. 29


Cut the cheesecake


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AnonGPT 25/05/10(Sat)13:54 No. 30


Marvellous


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AnonGPT 25/07/04(Fri)13:11 No. 71
71

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Oh ho




holic!/FYQeNNDVo 24/04/10(Wed)05:21 No. 11332 Board: /7ch/ [Reply]
11332

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about 15 years ago, some friends and i opened a few sites called 101chan, 000chan, 789chan, and legi0n. ive been out of the *chan culture for about 11 years now but i gotta say, its fuckin impressive that 7chan is still active. just wanted to say that, and also to ask if yall still have an active IRC at all


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holic!DesuBkBqTk 24/04/10(Wed)05:23 No. 11333

fuck me, it's been so long i forgot my fuckin tripcode for a second. here we go.




Anonymous 17/05/05(Fri)06:24 No. 16495 Board: /sci/ [Reply]
16495

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Why does the frequency of a wave multiplied by its wavelength equal C?


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The owner of the CIA says howdy Joshua Paul Lee Roy Bietz MD Neurochemistry 17/08/02(Wed)00:09 No. 16531
16531

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c=nu*lambda; nu=frequency and lambda=wavelength
The unit of frequency is cycles per second and that of wavelength is a displacement. Therefore, dimensional analysis provides you with displacement per second. Also, many electric and magnetic fields travel at speeds different from the speed of light, both faster and slower. Faster ones make it out of black holes, which ones depends on the escape velocity of black holes. The question you want to ask is how can we know theoretically that the matter eaten by the black hole conducts, and well, which we know from the electric and magnetic fields that escape from it near the axis of rotation.


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Anonymous 17/08/25(Fri)19:53 No. 16538

quantum physics is stupid. waves, quants, photons. blah blah. it doesn't make any sense. physics in this regard is a giant bloated mess full of convenient mathematical tricks, but there is actually no real understanding, because no real observation can take place at this scope.


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Anonymous 19/08/06(Tue)02:24 No. 16826

C The speed of light is used in many formulas as convenient shorthand for a bloody big number. The bigger the number the harder it is to prove it wrong and the closer to actual it will get the maths. Einstein used it to jump over the true speed of light .

Quantum theory is just that and draws a lot of funding for university layabouts to spend on themselves . Little will ever be achieved by quantum theory . For example it can be proved in quantum mechanics that black is equal to white with a 99.99% probability. Now if that's not stupidity extreme then I'll eat my own balls.




replacing speaker with 1/4" jack chrissychris 16/12/19(Mon)21:09 No. 16401 Board: /sci/ [Reply]
16401

File 148217815616.jpg - (110.29KB , 1000x1000 , 7chan post photo.jpg )

Alrighty, I am looking for some help.

For the sake of experimentation and fun, I'd like to replace the speaker of a shitty kids toy (very similar to the one in the pic) with a 1/4" audio jack so it can play through a larger amp, possibly even through guitar effect pedals.

I've already tried this twice. Taken apart the toy, soldered in a 1/4" jack, and plugged it in. Both times I ended up with a reallyyyy spotty and quiet sound. At first I thought it may be a bad soldering job, but now I feel like it could be due to the low power of the toy, it takes 3 AA batteries.

So what's the deal here? Any ideas what could be wrong?


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Anonymous 17/01/01(Sun)23:02 No. 16405

It has nothing to do with the electrical power. Real electric guitars don't have any batteries. The issue could be that the amp is designed to work with the signals from a guitar's pickup, which are probably not the same as the signals from a speaker. If I had to guess, the pickup would be taking the signals from each string individually, while the speaker from this kid's toy is taking the entire sound as a whole.

It's also possible that the teeny-tiny magnet in that speaker just isn't strong enough to send a strong signal. I'm not sure what you could do about this.


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Anonymous 19/05/08(Wed)19:01 No. 16767

the toy generates a signal of a much lower power (higher impedance) than a guitar pickup is expected to, that's why it's very quiet. as for it being "spotty", the most likely reason is that the sound you hear from the toy is largely due to the way the tiny speaker reacts to the incoming "lo-fi" signal. if you take the speaker out of the chain, you'll most likely lose the sound you're presumably trying to capture.

tl;dr - you can find a way to preamplify the signal before it gets to the amp, but it will still be "spotty". better yet, install a mic/pickup next to the toy's speaker.

the poster above is misinformed. passive guitar pickups don't draw current from batteries, they generate it when metal strings vibrate over the magnetic pole pieces of the pickup. it's safe to assume the toy does not have pickups and therefore needs to generate the signal itself by drawing current from the batteries. the toy is only expected to output its sound into a tiny, low-power speaker, so an appropriately low-powered signal is generated, which is too quiet for a guitar amp because of a much higher impedance, and sounds "spotty" because the signal is too "lo-fi" to sound good on a larger speaker.

as for what was said about guitars:
>Real electric guitars don't have any batteries
a lot of electric guitars/basses use 9V batteries, but plenty don't. an active pickup still generates current, but that signal is too low-power to go straight to the amp and needs to first go through the built-in active preamp. active pickups generate a low-power signal which is supposedly easier for the active EQ to handle and makes the signal less noisy (debatable). active pickups can be designed with a particular tonality in mind even if it sacrifices the output - it works because the signal still goes through the preamp on the way out. on a fully passive instrument the pickup itself is responsible for generating enough current to produce a signal of an acceptable level, which often results in a "nice tone vs high output" tradeoff situation. often times the pickup itself is passive, but the battery is needed for the EQ. active EQ can give you independent control of low/mid/high frequencies, whereas passive EQ is generally limited to a treble roll-off. some guy made optical pickups, which uses light emiters and photodetectors. those obviously require batteries.

>the pickup would be taking the signals from each string individually
not strictly wrong, but not exactly true. in most pickups there are separate magnet pole pieces that pick up the vibrations of each string individually, but the signal that the pickup outputs is generally one and the same. there are exceptions, i think it was Roland who made a pickup that output the sound of Message too long. Click here to view the full text.


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Anonymous 19/06/25(Tue)16:46 No. 16794

>>16401
Try hammering the speakers a bit
Usually the sound is just hidden inside and you need a little force to yank it out




flashing tits Anonymous 25/05/08(Thu)15:33 No. 89582 Board: /gif/ [Reply]
89582

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Anonymous 25/05/08(Thu)15:35 No. 89584
89584

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Anonymous 25/05/12(Mon)11:55 No. 89592
89592

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Anonymous 25/05/15(Thu)15:48 No. 89596
89596

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Edgar Anon Poe 23/10/01(Sun)23:45 No. 7156 Board: /grim/ [Reply]
7156

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OP you still alive?
Did you cut yourself too hard this time and you pass out yet? are you ok bro?




Anonymous 18/03/26(Mon)06:49 No. 6819 Board: /gfx/ ID: 21988d [Reply]
6819

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show your talent ..


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Anonymous 18/04/08(Sun)15:46 No. 6822 ID: 0dcc35
6822

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Anonymous 18/05/01(Tue)05:06 No. 6831 ID: 62b9ac
6831

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Anonymous 18/10/20(Sat)16:15 No. 6854 ID: 6413e7
6854

File 154004490155.jpg - (109.67KB , 720x878 , talent_1.jpg )




Anonymous 25/03/24(Mon)17:14 No. 89370 Board: /gif/ [Reply]
89370

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Anonymous 25/03/24(Mon)17:31 No. 89375

>>89374
more pls


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Anonymous 25/03/25(Tue)11:23 No. 89376
89376

File 174289817935.gif - (4.79MB , 399x399 , olivia.gif )


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Anonymous 25/03/25(Tue)15:02 No. 89377

>>89376
epic




Anonymous 23/05/22(Mon)23:41 No. 16278 Board: /fail/ [Reply]
16278

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nigger nigger nigger my nigger nigger


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Anonymous 23/07/02(Sun)17:11 No. 16280

:N:


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Anonymous 23/08/10(Thu)02:19 No. 16296

Su





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