Cheap Involves Search Results

How To: Build a Long Range Laser Spy System for Eavesdropping on Your Neighbors

Eavesdropping from a distance can be tricky because it usually requires some sort of bug or transmitter. It's easy to transmit audio through lasers, but you can also use lasers to build a microphone that picks up audio from a distance. LucidScience built the Laser Spy System for about $20. To make your own, you'll need a cheap laser pointer, an NPN phototransistor, a headphone amp, and a few other small pieces listed below. A light-to-sound circuit is installed in a small plastic box with the...

How To: Turn Any Wall Portrait into Your Own Personal Scooby Dooish "Eye" Spy Surveillance System

Remember how the bad guys in Scooby Doo would always use cut-out portraits to spy on people through walls? Well, unless your landlord is super cool, you probably shouldn't start cutting holes in your wall just yet, but you can make a higher tech version, thanks to NASA employee Mark Rober. Mark used a cheap picture frame and a portrait with the eyes cut out to make the "Scoob Cam," which also doubles as a surveillance device. He used an iPhone and an iPad to start a FaceTime chat, then taped ...

iPhone Quick Tip: Add Color to Make Your Broken Rear Glass Panel Look… Less Broke

The iPhone is probably one of the best looking phones ever made, but that beauty comes with a price. If you have a 4S or previous version, all it takes is one drop and the back glass is shattered (unless you're incredibly lucky). Replacing it yourself is pretty simple and cheap, but if you're not into DIY repairs, here's an easy alternative solution, as long as you have a white device. Redditor skrillexisokay used highlighters to transform a broken back glass into a work of art. And the best ...

How To: Hack Your Car's Cassette Deck into a Wireless Bluetooth Music Player

Still have an old tape deck installed in your car? This nifty hack lets you upgrade to the digital age without sacrificing your love for cassettes. There's nothing wrong with some low-fidelity tunes in your car every now and then, but if you want to listen to the tunes on your iPod or smartphone too, it's a lot easier (and cheaper) than buying a new in-dash player that supports line-in connections. Just add some wireless capabilities to you tape deck! All you need is a cheap cassette adapter,...

How To: Turn Your Old Satellite Dish into an Outdoor Solar Cooker

Harnessing the power of the sun is something that Captain Planet made cool before it was the go-to for renewable energy. Solar-powered energy is quick and cheap, and can make for some really cool DIY projects. And for those of you wondering what you should do with your old satellite, look no further. Aaron from Sharealikelicence offers up a way to create a DIY outdoor satellite cooker. He started with an old Ku Band dish and covered it with aluminum tape, for better reflection of the sunlight...

How To: Turn Any Ammo Box into an Awesome Set of Portable Speakers

Believe it or not, an ammo box can still be of use to you once its rounds are gone. You can use it for storage, as a toolbox, or possibly even as a Faraday cage. But if you want to use it as more than just a container, why not turn it into a portable set of speakers that you can take with you anywhere? The ammo can speaker pictured above was made by Instructables user Dustin White. He started with an empty .50 cal box, though you could probably even use thinner 5.56 or 7.62 mm cans. He remove...

How To: Repair or Replace Your Broken Headphone Jacks

If you haven't met a person that's broken a pair of headphones, you might need to get out more. No matter how expensive or cheap a pair of headphones are, the sound can get buggy, the wire can get cut, or the headphone jack itself can be broken or ripped off the cord. But instead of buying a new set of headphones or borrowing the ones from your cousin with the earwax problem, you can easily fix it yourself.

How To: Hate Separating Eggs? Use a Plastic Water Bottle to Surgically Extract the Egg Yolk

You can buy special utensils to do just about anything these days, and separating eggs is no exception. If you don't have (or want to buy) a fancy tool to do it, the classic method is simple—just crack the egg and transfer the yolk back and forth between the two halves. But even though egg separators are pretty cheap and using the shell (or just your fingers) isn't hard to do, neither is as fun as this trick by YouTuber jifenzhongDIY.

How To: Make Your Night Bike Glow in the Dark with Phosphorescent Paint

With gas prices constantly digging into your wallet, biking will always be a cheap and easy alternative for getting around—and it's a perfect way to get in a little exercise. But with the fall season about a week away, it is going to start getting dark a lot earlier and that ride home might be a little more dangerous. So to save yourself an unexpected trip to the ER, take a little time to make your bicycle impossible to overlook.

How To: Fix Your Game Controller's Analog Stick with a Furniture Gripper Pad

It can get pretty chaotic when you're gaming. When you're playing a fast-paced game like Black Ops, frustration, urgency, and confusion will lead to a sudden loss of control, i.e. a panic attack. There's an enemy at your six and you try to spin around, but it's too late—and that sudden rush of adrenaline will tear your controller to shreds. It's a step beyond mere button-mashing, because it's not really intentional—you just put a little more force on that thumbstick than needed. And now you'r...

How To: Build Your Own Projector Screen at Home for Less Than Fifty Bucks

A few weeks ago, we saw a simple 128 inch DIY Projector Screen that looked like a pro built it—and it only cost $200. But this one is even cheaper, and looks just as good. It's also simpler because it's painted right onto the wall. In the video below, How To Lou shows us how to make it with just some white or silverscreen paint, a few pieces of casement molding, and some black velvet for the trim.

How To: Build a Cheap Arduino Tachometer to Measure the RPMs of Spinning Fans (And More)

A tachometer, or RPM counter, is a device that measures the speed of something that's rotating. In a car with a manual transmission, the tachometer can be helpful in determining when to release the clutch and how much gas to give when you're taking off. This DIY Arduino Tachometer by Chris on PyroElectro uses an infrared transmitter and receiver break-beam pair to measure the RPM of a computer fan. When the fan blade passes between the transmitter and receiver, the IR beam counts the interrup...

How To: Send Your Secret Spy Messages Wirelessly Through Light with This DIY Laser Audio Transmitter

Looking to transmit some super-secret audio communications to your other spy buddies? A laser is the perfect tool for getting your sounds heard from a small distance—without anyone intercepting them— even if it's just a cover of your favorite pop song. A laser audio transmitter uses light rather than radio waves to transmit sound. This is a much more secure way to send audio communications because the laser is a focused beam of light, whereas radio waves are not controlled, so they can be pic...

How To: Discover the Hidden Colors in Everyday Objects with This DIY Video Spectrometer

A spectrometer is a device that splits light into all of the different colors it's composed of that can't be seen with the naked eye. It does this by using a prism to refract or bend the light. Jeffrey Warren over at Public Labs created a tutorial showing how you can make your own video spectrometer and create spectra like the one pictured below. Any guesses as to what the subject is? Believe it or not, that's what whipped cream looks like when viewed through a spectrometer. You can do this w...

How To: Spruce Up Your Bicycle with This Wooden DIY Riser Handlebar

Looking for a way to make your bike stand out? You could light it up with LED rim lights or turn signals. Or if you're looking for something a little less flashy, you could make your own set of custom wooden handlebars like these by furniture designer David Moore. To actually make these wooden handlebars, you will need some woodworking tools, not to mention some actual woodworking skill, or at least the tools and some knowledge on bending and forming wood. In his video below, David shows exac...

How To: Undo Instagram's Photo Filter Magic with Normalize for iPhone

Tired of the Instagram wave? If you're sick of having to view the world through low-contrast and sepia-toned filters, there's a way to get them back to how they're supposed to look, and it's called Normalize, which undoes the magic filtering that Instagram and similar photo filter apps provide. The process of un-Instagramming your (or anyone else's) photos with Normalize is perhaps easier than Instagramming them in the first place. All you need to do is copy and paste them into the app and wa...

How To: Turn a Playing Card into a Super Simple Solar-Powered Battery Charger

You can do a lot more with playing cards than you'd think, like turn them into gift boxes, fling them like throwing stars, and make them levitate or disappear. You can even make them recharge your batteries. Instructables user Shawn Frayne was sick of having a bunch of dead batteries lying around, so he developed a cheap and easy way to always have a charged one within arm's reach by turning a normal playing card into a super simple solar-powered battery charger for rechargeable AA and AAA ba...

News: This 1974 Gas-Guzzling Beetle Is Now an Eco-Friendly Electric "Voltswagon"

Want an electric car without the price tag? You could always build your own, or maybe just hack your old gas guzzler into an eco-friendly electric machine... This weekend at Defcon, security consultant David Brown showed off his "Voltswagon" project, a 1974 Beetle named Shocky that he converted to electric for only $6,000. He removed the old combustion engine, radiator, and a few other unneeded parts to make it lighter. Then he loaded it with batteries front and back, ten Interstate DC-29, 12...

How To: Follow chopstick etiquette

Try using proper chopstick etiquette next time you are in a situation in which chopsticks are involved. If chopsticks are not a utensil you are used to using you may not realize that you are being rude or using them incorrectly.