Hello fellow minecrafters and redstoners. I spent quite a while making a 1 block wide 3x3 piston door. However, by no means, is it compact, useful, nor optimized. It's just here for the concept. You guys can probably make it much much better. And yes, it is completely 1 wide, no hole in the center, no loopholes or tricks. It can be fully encased in a 3 wide wall.
This is the full contraption. Like, I said, not compact, but it is 1 wide. Input is that little lever on the bottom.

Here is the door closed. It's close time is fairly decent.

And here is it open. However, it's open time is horrendous.

And, of course, here is the world download: http://www.mediafire...bfx77v91jgbv30b
Finally, just some ending notes here. There had to be some bussing and delay on the bottom to get it to work, but that could easily be taken out if the separate functions of the monostable were split between the double extender and the right piston that gives the block.
Version 2

This one didn't take nearly as long as the first one. The open and close times on this version are insanely improved. It rivals some of the non-1 block wide versions. Unfortunately, like the last version, I couldn't get all the pistons to sync properly. It's a little off and causes a circular pattern of closing.
Full Contraption
It measures 19 wide, 18 high, and obviously 1 thick. The lever on the bottom is the input.

And here it is encased in a 3 thick stone wall, just to give a sense of scale. (The old one is in the background XD)

And here's the world. Be sure to try it. You'll be amazed how fast it is.
http://www.mediafire...jp3a30ea66lwgq0
Version 3! (From a challenge from MazeCraft)
As a result of MazeCraft's challenge, I bring to you, ladies and gentleman, the very first 1 wide tileable 3x3 piston door in all of minecraft:
Full Contraption Layered 4 Times for Effect

It has an EXTREMELY slow open and close time and has a really awkward opening and closing method, but it works, and it uses very little above ground space.
And world download. Be careful of lag, because the door can glitch if your computer lags. Try to limit opening the doors to only 1 or 2 at a time. The levers are on the right side, near the bottom. http://www.mediafire...dnso9hzl2fyc52a
P.S. By NO MEANS is this door practical, compact, or fast.
Version 4!!!
This one is somewhat more compact than the last one, is completely tileable, the doors can be individually opened and closed at any time, and it's not direction or coordinate dependent, as far as I tested.
Full Contraption, As Always

The open and close times are a little slower, but it's definitely more reliable. Probably still has some glitches and bugs. Also, the closing and opening methods are really awkwardly timed. They could be changed easily though. I just used that method because it worked, and I didn't want to risk breaking it. Lever on the bottom right activates them all. You could obviously replace that with whatever input method you want.
P.S. I never could fully test this because my laptop is absolutely horrible and could barely render the door. If anyone wants to test it and give feedback, that would be very much appreciated.
World: http://www.mediafire...khu3azs74rkfaiw
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Are you even trying, Europe?
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It's a program to set the color of your screen throughout the day. Like sunlight during day, aka normal, and like your lights at night, aka yellow-ish, depending on your settings.
Your monitor is set to mimic the color of the sun in its light, but you don't see the sun at ten-thirty.[1] Normally, this causes you to lose sleep, as your brain needs to adjust for the different lighting. This would be spread out over the evening, but in this case, it takes longer. With this program, your monitor is set according to your location and type of lighting, and changes appropriately, so that you can sleep well even after playing TF2 until 1AM.[WARNING: You probably won't feel good in the morning after doing that.] Sources below. You're welcome.
[1]http://www.webmd.com/sleep-disorders/news/20030620/nighttime-computer-users-may-lose-sleep
[2]http://www.medicalnewstoday.com/articles/249592.php
[3]http://well.blogs.nytimes.com/2012/09/10/really-using-a-computer-before-bed-can-disrupt-sleep/
[4]http://www.naturalnews.com/033413_melatonin_sleep_disorders.html
[5]http://www.cnn.com/2010/TECH/05/13/sleep.gadgets.ipad/index.html
[6]http://www.berkeleywellness.com/healthy-mind/sleep/article/it%E2%80%99s-late-turn-computer
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Mirrors will NOT show you murders/disfigurations/freaky versions of yourself. It's YOUR dream, and if you think you'll see creepy stuff, you'll see creepy stuff. Sleep paralysis brings on hypnagogia, pretty much your brain experimenting with dream-scenes. If you get woken up at night and see stuff, just move or something and it'll go away. They usually aren't even coherent, just lights and stuff. While trying a WILD a few weeks ago, I saw a bright white light in a pitch-black room. (If I was smart, I would've kept going, but I moved and stopped the process :P) My sister reported everything going silver and orange.
You feel pain only when you expect to. When lucid/ everything (to me) feels like heavy anesthetic.
As a side note, while falling asleep, do not ask to be shown anything. Trust me.
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How to induce a lucid dream:
WILD (Wake-Initiated Lucid Dream)
1.Lie in a comfy position.
2. Start imagining your muscles untensing.
3. Count your breaths on the inhale and on the exhale think "I'm dreaming." Don't just say it-picture it. To accelerate this, imagine a scene and attempt to control it. If it collapses, do it again.
4. Once you get to about 100 or so, you'll be
a. hallucinating
b. feeling a "wave of energy"
c. feeling as if your foot went to sleep, but across your entire body.
Any and all combinations will do. What these mean is that your mind is going "wtf we must have fallen asleep or something" and shutting down muscles, eventually entering a dream. If you are successful, you will find yourself in a dream, fully aware (or lucid) and able to control your dream.
Other resources to explore:
ld4all.com, dreamviews.com, dreaminglucid.com
Hope this helps. If anyone has questions, post them here.
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I don't hate bronies specifically. My two best friends are bronies. My little brother is a brony. However, whenever I see anyone trying to push it onto me, I get MAD. The same goes for the self-righteous ones who constantly get angry and say anyone who isn't a brony hates it and that they're being persecuted.