How Lunar Eclipse Works

2008 Lunar Eclipse

Photos of the Lunar Eclipse of february 20, 2008
Category: science discover interesting - Updated: 2009/07/23
beakman motor parts

Beakman Motor

A super-simple electric motor. This project already won many school science projects. Useless but extremadely interesting. (7/8/2006)
Category: science projects howto - Updated: 2009/07/23
Lamina Flow Engine or Resonating engine

Building a Lamina Flow Engine

Also called 'Stirling engine', 'Heat engine' or just 'Resonating engine' (11/11/98) (11/11/2008) What I was thinking?
Category: science projects diy homemade - Updated: 2009/07/23
Lego Electric Motor

Electric 'LEGO' Motor

As the beakman motor have no torque at all, I decided to buil this project based on the design of the regular electric motors. With a medium difficulty, this motor is able to work with a fair load using 6 volts. (2/7/2007)
Category: lego science projects diy homemade howto - Updated: 2009/07/24
pulse electric lego motor

Electric 'LEGO' Motor II

As the previous motor is not easy to build and it doesn't have too much torque, I decided to improve the design. This motor is more like "Pulse Motor" as it pushes the magnets with only one coil. With only 3 Volts, it have three times more torque that the previous one and is easier to build. (2/9/2007)
Category: science projects homemade diy lego howto - Updated: 2009/07/24
Piezoelectric from a Watch clock

Electricity from Piezoelectric materials

Easy experiment that shows how to get electricity from Piezoelectric materials, a clean source of electricity. Also, some interesting applications. (11/13/2008)
Category: science projects circuits discover - Updated: 2009/07/24
Soda can and JosePino toothpaste.

Fire From a Soda Can.

An interesting "survival project" that I received from a reader. How to make fire using a soda can. (7/2/2006)
Category: interesting science diy howto from_readers - Updated: 2009/07/23
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
floating paper clip

Hard Water Experiments.

Here is two "science projects" to have fun with. It explains the term "hard water" and interesting facts. (5/07/2007)
Category: science projects discover - Updated: 2009/07/24

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
home made speaker

How To Make a Speaker

A homemade speaker using a plastic cup, business card, wire, magnet and some Lego blocks. I built this speaker from scratch; I was surprised of the quality of the sound. Updated! (6/14/2007)
Category: diy homemade science projects audio - Updated: 2009/07/24

How To Make a Barometer.

A Barometer is used to measure the atmospheric pressure and is a tool to forecast the weather. (5/06/2007)
Category: howto science projects diy homemade - Updated: 2009/07/23

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