A homemade thermometer

How to make a Thermometer

Here is an easy-to-build homemade thermometer using materials available at home. (3/12/2006)
Category: science projects diy homemade howto - Updated: 2009/07/24
hi-gain-wifi-antenna.jpg

Homemade WiFi Lid Antenna.

A homemade Antenna using a USB Wifi adapter, a lid and some wood. I got 13dB gain. (7/29/2007)
Category: hacks projects diy homemade computer howto - Updated: 2009/07/23
teresitas - Mexican paper decorations.

Make Mexican Paper Decorations.

This is a simple and interesting paper decoration. Just a few paper sheets, folds, cut and you get an almost-free awesome decoration. (8/3/2007)
Category: projects diy howto - Updated: 2009/07/23
piezoelectric

Making High Impedance Headphones

With less than 5 bucks (better known as $5 USD) you can make a high-impedance headphones for your homemade crystal radio. (11/27/2007)
Category: howto hacks projects diy - Updated: 2010/01/20
first transistor

Making Homemade Transistors

After 20 years, Where I am in the race of "Do it yourself transistors"? (9/24/2009)
Category: diy projects - Updated: 2010/01/19
NXT Record player

NTX Gramophone / Vinyl Record Player

This is my second version of my homemade Gramophone/Phonograph using my LEGO Mindstorms NTX. (2/11/2007)
Category: lego science projects homemade audio howto - Updated: 2014/03/02
quartz clock

One Second Timebase.

Here are the instructions how to get one-second (1hz) pulses from a broken quartz clock. This is a precision timebase generator that can be used in any project that needs exactly one-second pulses. (6/11/2006) Updated!
Category: electronics circuits diy projects - Updated: 2014/03/02
tools needed to work with paper clips.

Paperclip ideas

Some items to build and things to do with paperclips. (10/05/2005)
Category: projects diy homemade howto - Updated: 2009/07/23
Making Circles

Paperclip Ideas II

So, you are looking for some things to make when bored at work huh?
Category: howto projects diy - Updated: 2010/01/19
Robotic arm using lego mindstorms (R)

Robotic Arm

This Mechanical arm is quite impressive and interesting to build. (3/18/2006)
Category: lego homemade science projects robots - Updated: 2009/07/23
Materials needed.

Mini-Rocket.

A mini-rocket that uses water and carbon dioxide as "fuel". (2/26/2006)
Category: science projects howto homemade - Updated: 2009/07/23
Yummy cake

Rotating Cake Tray with Lego

Anyone that decorates cakes knows how difficult is to stop frecuently to rotate the cake and continue to decorate it or apply the frosting. This rotating cake tray helps to easy the process of decoration. (11/5/2006)
Category: lego robots projects - Updated: 2009/07/23
science toy maker website

www.sciencetoymaker.org

A non-commercial site for people who like to roll up their sleeves and make fun, mysterious toys and projects that entice scientific investigation. It is a resource for inspired parents, kids, teachers, teenagers, home schoolers and science fair participants. (5/15/2007)
Category: best websites diy science projects - Updated: 2009/07/23
I can

Trying to build a "Robot"

After I sucessfully built the first one, I tried to build a second one. (Jan 2006)
Category: lego robots projects - Updated: 2009/07/23
My super simple sun tracker

Super Simple Sun Tracker.

Without using complex circuits and sensors, I was able to make my simple home-made Sun Tracker. This one only needs Solar cells, a motor and some gears. (11/20/2007)
Category: science projects diy homemade lego - Updated: 2009/07/23

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