Hacks Mods & Circuitry: Page 3

At a certain moment in our lives all of us wanted to be a fire fighter. To simulate that effect, we created a super-awesome siren. With two 555-timer chips and lots of trail and error, we were able to create this awful noise.

Clothespins are pretty innocent-looking, but with a mod here and a hack there, that innocence quickly turns into danger. Well, sort of. In this project, we'll be turning an ordinary spring-action clothespin into powerful matchstick and toothpick shooter that can shoot apples and lob fiery darts over 20 feet.

Making a 500 foot camera housing for 70$So easy and better then any other do it your self ones.

900 feet range , instead of a wire i'm using a antenna from a old phone.for much better range.

This simple contraption almost acts like a Rube Goldberg machine to give you that cold tranquility that you need during the summer.

This elenco electronics snap circuits kit has over 300 electronics experiments that are sure to keep you busy. Learn the fundamentals of electronics and be qualified as a jr. electrician.

This is for those people that want to create a fire in a camping situation, survival situation, flare type alert to other that you are lost, or simply for entertainment.

make robots WALL.E with low cost. using materials from scrap

Mac laptops, especially the older PowerBooks, often can become very hot when doing processor intensive tasks like movie rendering, YouTube videos streaming, database lookups, or just gaming. Often just lifting the machine from the surface is enough to cool it down without the need of expensive hardware or software tuning.

Headphone cords are one of those things we all deal with because it beats the alternative (no music). But they can be so obnoxious—they're always getting caught on things, and they seem to be perpetually tangled. If you have ear buds, you can make a simple a cord container to keep them organized, but over-ear headphones are a little more tricky.

10 Life Hacks:

Okay, I have an old Korg Nano Keyboard Mini Controller. I'm wondering if it's possible to use this as a base to build a more functional midi controller, i.e. replace a few keys with rotary knobs to make it more compatible with what I want to control in my CrossDJ software. If so, could someone direct me to a site or book/information on how to do it? I haven't torn it yet, so I'm not sure what kind of wiring goes to each key or what kind of wiring is needed to hook up to a rotary control. Thanks...

Thermistors are used in almost every single device. If you are planning to build a grand new project, let us explain why and how you should use a thermistor !

For this project, you will need a magnet, two AA batteries, two keys, a metal plate, and a copper wire coil.

When you forget you charger,you can use this dynamo charger to charge the phone with your hand. I convert the dynamo LED flashlight into charger just adding bridge rectifier, capacitor and USB female plug.

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If you're going to build yourself a water gun to cool down this summer, or maybe just a useful water pump, you'll need some check valves. However, the most expensive parts of a water pump or DIY super soaker are usually the check valves. So, let's make some from scratch for as little as $0.35 each.

It's hot this summer, but it's not that easy to cool down when you're on the go. You can't take an air conditioner with you, and a handheld fan will just tire you out, so you'll need to find more creative ways to cool down when you're on the go. One of these ways is a DIY solar-powered fan baseball cap.

Phone charger that you can plug in into E27 screw base,its thief charger.

Paper clips and any kind of power adapter that gives 5 volts will do the job for charging your phone battery.

This is about dancing LEDs following the rhythm of music or speech picked-up by a small microphone. The projects is very cool, and for building it, you will need a light bulb,10 LEDs, project box, electronic board with IC CD4017 and LM358 and power adapter.

Well it's for my brothers so they find a house for my mom

I use a lighter as a case for my USB drive and it came out pretty cool. Watch to see how I made it.

As I am a late joiner, where can I begin and which links should I check out?

I all the time play games and my hand always sweat.So I add small dc fan into my mouse and fix the problem with sweating.What you will need is one dc fan that work on 5 volts,tiny switch and some wires.

A list of awesome simple life hacks:1.Spring cable protector2.TV phone charger3.Food Container4.Battery hack 15.Battery hack 2

In this video I show you how to repair the cable of your badly damaged headphones and basically give them another chance.

For this project, I was inspired by the as-yet-to-be-released movie called The Prototype when making this mask. Paper strips and a mix of water and flour is the main things you'll need to make this Prototype-like mask. For the eyes, I used old halogen bulbs and inside them I put LEDs connected to a battery with switch.

Perfect kids room project! Make an oozing faucet nightlight!

Learn how to make a PVC cartridge rifle that shoots the cartridges!! This thing will "blow you away!"

Create your very own alcohol powered bottle rocket!

Learn how to build your very own water balloon launcher out of PVC pipe.

Watch this video tutorial, and learn how to turn an ordinary inexpensive webcam into a hidden home security system, viewable anywhere in the world from your cell phone! With a cute and cuddly teddy bear and a cheap webcam, you can make the perfect homemade security camera, or just a camera to spy on your sister and her friends during sleepovers. Follow along with the steps in this how-to video and learn how to set up this spy system. Note: this video is NOT recommended for people who are...

Mac was possibly hacked remotely and I'm desperately been searching to figure out if they were successful and how to detect if I'm still being "watched". :o/ Thank you for any help. :)

This is a illuminated pen holder that I made out of a couple recycled hard drives. The LEDs receive power from the standard USB cable connected to a computer.

Last time, I showed how to start putting together an AC arc welder from scavenged microwave parts, focusing on the transformer modifications. Now, I'll show you how to finish up your DIY stick welding machine by fixing up the electrical system and performing the finishing touches.

Lurking inside your old junk microwave is an abundance of useful parts that can let you melt metal, spot weld, and make electrifying Jacob's ladders. You can even make a powerful AC arc welder, perfect for making hard-to-solve puzzles and even makeshift weapons for the zombie apocalypse.

For those needing to replace old controller hardware on cutting mills, those into native retro gaming, or for those who want to see what all the fuss was about in the 1980's, or for those who just want a play with old but great technology, this tutorial shows you step-by-step processing getting the breakthrough desktop operating system running on the latest greatest hardware.