salt crystal

Growing Salt Crystals.

Common salt, also known as sodium chloride or NaCl, have an interesting cystal structure. Water, Salt and lots of patience for one week, are the ingredients to grow salt crystals and get an easy science project. (6/3/2007) - Updated!
Category: science projects diy howto discover - Updated: 2009/07/23
ntx connector

Hacking the LEGO NXT

As the LEGO NXT is more complicated than the RCX; I had to do my own research to be able to hack the NXT connectors. Here is some interesting information about the signals from LEGO Mindstorms NXT. (8/2/2007)
Category: lego howto projects electronics robots - Updated: 2009/07/23
Spiders in computer

Halloween Decorations: Spiders

DIY projects for Halloween, Make your own Spiders. A cheap an easy project. (10/29/2008)
Category: projects diy homemade howto - Updated: 2009/10/07
Ghost for Halloween

Halloween Decorations: Ghost

DIY projects for Halloween, Make your own Ghost. A cheap an easy project. Two projects sent by readers included.(10/30/2008)
Category: projects diy homemade howto - Updated: 2009/07/24
Spider Web

Halloween Decorations: Spiderweb

DIY projects for Halloween, Make your own Spiderweb. A cheap an easy project. (10/30/2008)
Category: projects diy homemade howto - Updated: 2009/10/07
Pinout information of LCD Hitachi

Hitachi LCD Displays

LCD displays Hitachi Compatible, Data and Tips how to use the display.
Category: electronics circuits howto - Updated: 2009/07/23
Clorox anywhere made at home.

Homemade 'Clorox Anywhere'

Improve your quality of life and health: Make your own disinfectant to clean your home and save money. (10/28/2008)
Category: homemade diy discover howto - Updated: 2009/07/24
preview.jpg

Homemade Gramophone (Phonograph)

I'm ending the year listening old music from Vinyl disks, So I build my home-made gramophone using a pin and a plastic cup. With my lego set of "mindstorms" I was able to spin the disk at 33 RPM (approximately). Here are some photos an a video of my gramophone. (12/31/2006)
Category: lego projects science diy homemade audio howto - Updated: 2009/07/23
homemade hi fidelity speaker.

Hi-fidelity Homemade Loudspeaker.

From the Inventor of the Styrofoam Plate Speaker, here are the instructions to build the "Hi-Fidelity homemade styrofoam-plate speaker". (8/6/2007)
Category: hacks science projects diy homemade audio howto - Updated: 2014/03/02
paperclip compass

Paperclip Compass

A simple and easy way to make a home-made compass using a paper clip and magnet.
Category: science projects homemade diy hacks howto - Updated: 2010/01/19
Compass made in Japan

Homemade Compass

Another easy-to-make diy science project. Build a compass for [almost] free! (1/14/2008)
Category: science projects homemade diy hacks howto - Updated: 2010/01/19
Circuit of the ColdHeat soldering tool

Homemade COLDHEAT.

My first attempt to build a homemade "ColdHeat" soldering tool. (7/8/2006)
Category: howto circuits diy homemade - Updated: 2009/07/23
Colheat soldering tool

How COLD HEAT Works?

This "Hi-tech" soldering tool looks like a miracle. Does it Really Work? (7/13/2005)
Category: howto circuits how_it_works - Updated: 2009/07/23
Controling two leds

How To Control Multiple Leds

Multiplexing the I/O ports, you can control many leds using a few ports. Improved! (5/21/2006)
Category: microcontroller electronics howto - Updated: 2009/07/24
PSP model PSP-1001

How To Repair Sony PSP

For some reason, my PSP wasn't working ok. It had some sticky keys. Here is a "quick reference" how to repair the PSP keys. (09/20/07)
Category: howto diy electronics - Updated: 2009/07/23

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