We live in a constantly moving world in which mobile devices are our windows to social media, the internet and entertainment resources. The only problem is that those mobile devices don't have an unending battery supply. When they die, so does your handheld communication. How many times have you bee...
After using for years my laptop as flexible disc Sander through a supplied accessory, and securing it temporarily "a little here and a little there, I decided to DIY a disc sander fixing all recovery materials, to cost almost 0. Before going in the description it is necessary to make a ...
In this tutorial you will learn how to etch a single-sided printed circuit boardMaterials: a single sided PCB, I have used the type FR4 a light boxpositive developerhydrogen peroxide (H2O2)hydrochloric acid tracing paper safety glasses gloves non-metalic reservoir drills Draw the circuit To draw...
Ever wanted a durable and reliable soft circuit button? With just a little bit of conductive thread, two pieces of fabric and some batting you can make your very own.The materials you'll need:1/8 yard of non-conductive fabric1/16 yard of non-conductive batting36" of conductive thread2 conductive sna...
It is very well known that when putting a copper and a zinc rod into a potato, a voltage can be measured across the two rods, that is how the potato clock works. However we can take this idea further using a tree. As a tree has a higher volume than a potato, more energy can be transferred from the z...
A biosand filter is a simple type of water purification system that uses sand, gravel, gravity and some simple engineering to purify water contaminated with biologics and some chemicals. Its structure is generally made of concrete or plastic and is filled with layers of gravel and sand that encoura...
Converting electricity into heat is one of the most inefficient uses of energy. If you’re not convinced, look at the power usage of electric appliances like microwaves, space heaters, water heaters, ovens, or coffee pots. The difference can be seen between your electric bill from a cold month, when ...