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laser tripwire that, combined with a photoresistor, can trigger just about any device. You can make traps, alarms, awesome party decorations, and all sorts of other awesome things with this easy-to-make device, provided you have a soldering iron and a local electronics store to buy some ...
How to Make an Electric Soldering IronA design for an electric soldering iron is given in the accompanying illustration. The drawing is made to scale and is suitable for a working drawing. . 1905 Scientific American, Inc.doi:10.1038/scientificamerican04081905-283Weeks...
you do need to get the stencil made (if you are having a PCB made you can often get the fab house to also make the stencil). You also need to make up some sort of jig to accurately (and repeatedly in
Butter Candle:https://www.instructables.com/id/Make-a-Butter-Cand... Step 4: Solder by Heating the Wires Directly The simplest kind of soldering is just connecting two wires together. This can be done by heating the wires directly and doesn't require any kind of a soldering iron. ...
More than just a tasty treat, potatoes can also be used in science experiments. Thanks to the sulfuric acid that they contain, they make an excellent electrolyte for use as a makeshift battery. With the addition of a copper strip and a zinc nail, you can actually create power through the...
the choice of solder is yours to make. Many people still prefer the use of leaded solder on account of its superb ability to act as a joining agent. Still, others prefer safety over functionality and opt for the lead-free. SparkFunsells both varietiesto allow individuals to make that choi...
Don't make the mistakes I made! Also:This $11 gadget is a must-have for aging eyes Here I'm going to show you the tools you'll need -- nothing expensive -- and I'll also give you tips and tricks to get you started on your path to being able to become an expert ...
Why would you want to make something like this? Many people use them to extend their Wi-Fi signal to a hard-to-reach part of the home, or even extend their Wi-Fi to the bottom of the garden. They can also be very useful to people who rely on public internet access. If set up ...
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