Renewable Electrical Search Results

How To: Build Your Own Mini Altoids Guitar Amp for About $5

I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guitar amp, a simple LM386 amplifier can crank up those signals loud enough to play through any speaker.

How To: Build a Laser Trip Wire Alarm System

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The triggers for this boundary could be as simple as a pressure sensor, or as complicated as a laser network. They all do the same thing, but some work better than others.

News: The Best Touchscreen Gloves to Get You Through the Winter

Not that long ago, touchscreen-friendly gloves were an outlier accessory, something you had to track down at a specialty brick-and-mortar store or solely online. But as the smartphone has become an integral part of our lives, so, too, has the need for fashion accessories that cater to our desire to be always connected. So now, touchscreen gloves are everywhere.

News: How Razer Used IGZO Display Tech to Achieve 120 Hz Refresh Rates

With their first attempt at the mobile market, Razer introduced a device that looks at the smartphone differently. Instead of focusing on minimal bezels or an amazing camera, Razer decided to make a phone for gamers. So how could Razer target the growing mobile gaming market, which is projected to generate $40.6 billion in global revenue in 2017? It starts with the IGZO LCD Display.

NR50: The People to Watch in Mobile Augmented Reality

While the world is only recently becoming aware of its existence, augmented reality has been around in some form or another since the '90s. In the last decade, with the advancement and miniaturization of computer technology — specifically smartphones and tablets — AR has become far more viable as a usable tool and even more so as a form of entertainment. And these are the people behind mobile AR to keep an eye on.

News: Compound in a Frog's Defensive Slime May Treat Your Next Flu Infection

Our quest to find novel compounds in nature that we can use against human diseases —a process called bioprospecting — has led a research team to a small frog found in India. From the skin slime of the colorful Hydrophylax bahuvistara, researchers reported finding a peptide — a small piece of protein — that can destroy many strains of human flu and can even protect mice against the flu.

Cyberwar: Hacker vs. Hacker

From time immemorial, human beings seem to be at odds with one another. When these differences become so heated and unresolvable, it eventually erodes into physical violence. This violence has manifested into some of the most horrific exercises in human history, things which every school child is aware of and none of which we have to recount here. Although humans have been cruel and violent for a very long time, the 20th century may have epitomized that behavior. With two World Wars and many,...

How To: | 3 DIY Electronic Geek Chic Pieces for Him

Stand out from the high street fashion clones with stuff you’ve fashioned yourself. It’s easy to take old pieces of electronic junk and transform them into all sorts of fun ‘n’ funky geeky accessories. Like a totally useful tote bag, a what-on-earth-is-that wallet and a bedazzling belt. It’s terribly geeky but chicy too. Here’s how…

How To: Evaluate a rental apartment

Make sure your next apartment rental goes smoothly by properly checking the property before signing a contract. This way you will avoid unexpected disappointments or problems that you were not aware off. Moving is hard enough, give yourself all the advantage you can by going in prepared.

How To: Use a power screwdriver

In this online video series learn from power tool expert and Industrial Technology teacher Jon Olson as he teaches and demonstrates how to use and maintain the power screwdriver. Learn important power tool tips and techniques such as construction work area safety, electrical safety, how to use the chuck on a power screwdriver; how to use a power screwdriver; tool maintenance; battery tool use and care; how to use the torque adjustment collar; how to drive a screw at an angle; how to use the v...

How To: Use a corner sander

In this woodworking video series, our home improvement expert Jon Olsen tells you how to use the corner cat finish sander to smooth out the shop project you've been working on. He begins with an overview of workplace safety, covering work area safety as well as electrical and personal safety. Then he tells you how to identify individual parts and then how to selection the correct sanding pad for the job at hand. Don't know how to properly attach the dust bag?

How To: Use a chop saw

A chop (or miter) saw is a power tool used to make accurate cross cuts in wood, plastic, and light metals. It has a fixed blade, attached to a moving arm, that spins over a small worktable. The operator lines up the piece to be cut and drops the saw blade, allowing for quick, easy work. Watch this instructional video series, and decide if the chop saw is a tool you'd like to introduce into your workshop. Lessons include general safety tips, uses for the chop saw, replacing the cutting saw bla...

How To: Use a random orbit sander

In this series of instructional videos, expert Jon Olson demonstrates how to use a random orbit sander, including tips on how to create bevels, replace discs and brushes, empty the dust bag and general cleaning, care and basic maintenance of the tool. He also covers tool safety, including electrical safety, personal safety, such as wearing protective eye gear, tips for sanding paint and the importance of keeping your woodworking work space clean. Watch this free online tutorial and you'll att...

How To: Are Your Gadgets Safe from Solar Storms and Nuclear Attacks?

It's September 1st, 1859, and the Earth looks more or less like something out of an apocalyptic movie or Sci-Fi novel. All communications have failed, it's so bright outside at midnight that people are getting up and making breakfast, and people all over the world are seeing auroras. The solar storm that produced the electromagnetic pulse and caused all this mayhem is known as the Carrington Event, and storms like it happen about about once every century.

How To: Install a ceiling fan

In these diy home improvement videos, learn how to install a ceiling fan in your home. Our expert will show you what to consider when choosing a fan, what tools you’ll need, how to turn the power off, electrical wiring tips, how to assemble the fan blades, how to add a light fixture, and other helpful hints you’ll need when installing a ceiling fan for the first time.

News: Samsung Galaxy S10 Review, 3 Months Later: All the Little Things to Know

The Galaxy S10 has finally been revealed to the masses, and it certainly doesn't disappoint. As the flagship to herald the tenth anniversary of the venerable Galaxy S line, the S10 has kept popular and familiar design elements like the immersive Infinity Display while employing new features like more advanced cameras to set a new standard for other OEMs to follow.

How To: Log into Your Raspberry Pi Using a USB-to-TTL Serial Cable

Connecting to your headless Raspberry Pi on the go typically requires a network connection or carrying around bulky peripheral hardware like a screen and keyboard. With the help of an old-school connecting standard, though, you can log into your Pi from any computer using a simple cable. If you don't have a power source, you can also power your Linux distro over the cable at the same time.