Don’t mind the post title as this DIY shows you how to make hydroponics unit for growing anything.

Aside from people with medical marijuana licenses who live in San Francisco and can legally grow several pot plants, the hydroponic system can be used for growing your own organic vegetables and what not.

My wife teaches 8th grade science. This project “The Hydroshack” is a rendition of one I built over 20 years ago in my college teaching methods class. It is designed specifically for performing experiments in a science class. It therefore incorporates some modifications for flexibility and control purposes. It also needs to be collapsible for storage in tight quarters. If you are considering building something similar for your home, it can be less complex.

via instructables

Of course, if you don’t want to build one yourself, here’s some resources too:

Hydroponics.com sells bunch of nutrients and other hardware needed for home-growing.

All about Hydroponics at Wikipedia.

Hydroponics.net sells bunch of stuff for home-growing too.

College students from Korea are working on their senior year project, that’s right, an interactive toilet that will make sounds and display different shapes of pictures on an LCD based on the size and shape of “poop”.

This is very interesting as I’ve always wanted to hear something else than my regular ol’ “poop”.

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via youtube

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Check out this cool Stonehedge robotic clock.  It’s really something when you use the latest technology to re-make something old as the stonehedge. - Link to Norris Labs the creator

Stonehenge uses a CrustCrawler Smart Arm and a Parallax Propeller chip to display the current time. All the digits needed to display the time are located on cards positioned in a semi-circle around the left and right sides of the arm. The time itself is displayed in front of the arm. This gives the clock a “Stonehenge” like appearance. There are a total of 14 cards. Each card has two digits with one on each side. The software planner determines which card and which side is needed to display the time and then sends the necessary movement commands to the arm.

via hackedgadgets

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(Jump to 1:11 for flames!)

Here’s a cool DIY Flame Thrower project that will remind you of X-men characters.

Definitely this isn’t as powerful as anything in the movies but will burn most things off pretty fast.

The Pyro System is my final project for a mechanisms class in the spring of 2008. It gives me the power that the X-Men character Pyro has

via hackedgadgets

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Check out the LED Dragon, kind of a cool DIY project if you know how to engrave glass.

I have to say that even I was surprised how well the dragon version turned out. Three very simple flames and bit of light and magic can really spice up the engraving. And this was the whole point of this project.

It took only minutes to engrave the flames but I have to admit that it took way longer that I expected to get all the taping done, leds mounted and hooked up. On top of all this, it was pain to keep all the layers clean during the assembly.

via hackedgadgets

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Here’s a fun little project.  Get a PC fan, a sawed-off USB cable, and some carboard to make a cheap USB Vacuum running off 5 volts DC.

via getusb

Here’s a really cool DIY on how to make a PID controlled fridge.

For this project, you will need to grab an icebox, thermoelectric cooling part, and a PID.

Heck, if you want to skip the steps, you can also get a Kimchi refridgerator, which does the same thing.

I had an old beer cooler sitting in the garage that Kylie picked up on the street a while back. It uses a Peltier thermoelectric cooler to cool the inside and can achieve sub-freezing temperatures.

Since I didn’t want to leave the cooler on constantly, and below freezing is actually too cold for solder paste, I decided to add a PID controller to the cooler to create a solder paste fridge for the garage. To do this, I needed the following items:

via make

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Here’s a cool DIY on how to make an LED Cube!

64 LEDs makes up this 4 by 4 by 4 cube, controlled by an Atmel Atmega16 microcontroller.
Each LED can be addressed individually in software, enabling it to display amazing 3d animations!

via instructables

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Wow, check out this green/red laser projector which can do animations.

This is one of my experimental Dance/Trance songs from 2000. I build laser systems for fun so I have put together pictures and clips from assembly to a full working system to go with the song. I know the song gets really annoying after awhile sorry. Iv’e been getting a lot of email asking how the projector works and what parts are in it.
Here’s how the projector works:
The green laser bounces off a mirror then through a green beam splitter, the beam is then separated (The reason for this is later I added a second beam turret projector which did not work well so I removed it and also the beam splitter  The Green beam then bounces off a red dichroic filter and into the Scanners. The red laser passes through the red dichroic filter this allows you to mix the two colors into one beam or into dual images if the alignment is off.
(Most all of the video uses the red laser because the green was too bright for the video camera)
Here is some information on my laser system and where you can find the parts.

Laser controller and software I use is from
http://www.laserillusions.com/
This is a great package and costs a fraction of any other laser software about $400.00″

via hackedgadgets

Related Posts:

Green Laser Projector

How to Make a Green Laser Projector

How to Make Hard Disk Green Laser Projector

How to Make Music-Syncing Green Laser Projector

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Here’s a really cool demo of an interactive projector screen or is it Multi-Touch Projector?

The basic idea is really simple: a program running on the PC will process the images viewed from the webcam, find the position of the penlight/light spot, and use this position to deternine where to place the mouse cursor on the screen. Now, if we can assume that the light spot/point is always the brightest object in the area, than the detection algorithm will be very simple: find the location of the pixel with the highest intensity level. We make use of two additional useful facts: 1. a normal pocket touchlights (or any incandescent lamp for that matter) actually emits several times more infrared light than visible light, and so works better as IR point source than a visible light source. 2. most webcam are able not only to detect visible lights (red, green and blue, etc) but they can also detect infrared (IR) lights – for example as emitted by the IR LEDs commonly found on TV/Hifi remote controls – which are invisible to the human eyes. So if we can somehow use the webcam to capture only the infrared lights from our light source and reject the surrounding visible lights, we will be ensured of a very reliable system. An additional feature of this system will be it will work if we replace the torchlight with any IR LEDs.”

via hackedgadgets