Technology

An LED keychain can be an important accessory to keep on your keys; it can help to light your way in dark places, or even help you to signal for … Read More

There are two major types of caller ID cards, and a number of different companies produce each of them. One of the most common types of cards is needed to … Read More

Subwoofers are complete loudspeakers that handle low-pitched audio frequencies, or bass. There are different types of subwoofer systems — some include powered subwoofers, nonpowered sub-woofers, and tube subwoofers. Powered and … Read More

A 3D projection TV has a type of screen that is capable of displaying 3D images for people who are wearing specially polarized glasses. These screens are generally used in … Read More

A capacitor is a device used in electronic circuits to block DC signals, while still allowing AC signals to pass though. To accomplish this, a multilayer ceramic capacitor uses a … Read More

A photonic integrated circuit is a compactly packaged chip or electronic circuit that specializes either in the generation or in the processing of modulated light energy used in optical communications. … Read More

There are a few different ways in which you can create a Quick Response (QR) code for use in advertising, graphic design, and other applications. These codes are typically black … Read More

A digital telephoto lens is a type of photography lens used in conjunction with a digital camera. This lens is used for viewing objects far away from the person taking … Read More

Positive (P)-type semiconductors are acceptors of electrons, and are commonly paired with negative (N)-type semiconductors as electronic components or integrated circuits (ICs). P-type semiconductors were previously intrinsic semiconductors, such as … Read More

A global positioning system (GPS) is a device that helps travelers navigate from one location to another. The right motorcycle GPS can depend largely on how the device is mounted … Read More

The word geocaching is a participle made from the roots geo meaning “Earth” and cache meaning “a temporary stash,” and it was coined by Matt Stum. People around the world … Read More

A rotating surge protector is an electronic device that allows multiple items to be plugged into a single outlet at once. The major benefit of this rotating surge protector is … Read More

When shopping for an aerobics microphone, search for sweat-proof microphones that will fit comfortably on your head or around your neck while simultaneously giving good sound quality. A microphone with … Read More

Printed circuit board repairs often are difficult and tedious, but the difficulty can be mitigated by employing a few simple tips. There often are scratches on older printed circuit boards, … Read More

A light-emitting diode (LED) bulb is a small, intense lightbulb about the size of a match head. An LED lightbulb uses semiconductor technology to replace traditional filament-style lighting. The bulbs’ … Read More

Wireless headphones can allow you to listen to your television at home without disturbing others, or free you from cord tangles when you take your music on the go. Determining … Read More

A home stereo system can be used to listen to music, and it can be hooked into a television to provide stereo sound during movies and TV programs. Those who … Read More

Mobile ham radio is the practice of amateur enthusiasts engaging in two-way radio communications. It usually uses low-powered broadcasting over shortwave frequencies. There is a long-established community of ham radio … Read More

Candles can give rooms a warm and inviting glow, but they are not always safe to use. Rechargeable candles can be a safer alternative to traditional varieties, because they have … Read More

Cell phone accessories are additions to your cell phone that usually serve a helpful purpose. Some people decorate their cell phones with accessories, but most are used for a specific … Read More