Anatomy of a Metal Detector A typical metal detector is light-weight and consists of just a few parts: Stabilizer (optional) – used to keep the unit steady as you sweep it back and forth Control box – contains the circuitry, controls, speaker, batteries and the microprocessor Shaft – connects the control box and the coil; […]
How Metal Detectors Work Read More »
The art of connecting things is becoming more and more complex every day. In this article, we will look at a method of connecting devices, called Bluetooth, that can streamline the process. A Bluetooth connection is wireless and automatic, and it has a number of interesting features that can simplify our daily lives. The Problem
How Bluetooth Works Read More »
While there are many different types of batteries, the basic concept by which they function remains the same. When a device is connected to a battery, a reaction occurs that produces electrical energy. This is known as an electrochemical reaction. Italian physicist Count Alessandro Volta first discovered this process in 1799 when he created a
How Batteries Work Read More »
The popularity of mystery clocks is no mystery at all. They’re novelties and great conversation pieces. They are mind-boggling at first glance, and amusingly fascinating once you understand what’s going on. They’re triumphs of imagination and craftsmanship, and they’re often works of decorative art as well. The mystery comes in how these clocks work. They’re
How mystery clock works Read More »
Microcontrollers are hidden inside a surprising number of products these days. If your microwave oven has an LED or LCD screen and a keypad, it contains a microcontroller. All modern automobiles contain at least one microcontroller, and can have as many as six or seven: The engine is controlled by a microcontroller, as are the
How Microcontrollers Work Read More »
One machine aims to bring the glamour back to drip coffee: the Clover coffee maker. It was developed in 2005 by the Seattle-based Coffee Equipment Company. As opposed to a batch brew that yields enough cups to get a business through the morning rush, the Clover brews one cup of coffee at a time. With
How the Clover Coffee Maker Works Read More »
The weather is simply the state of the atmosphere, the massive gaseous layer that envelopes our planet. A number of different factors influence what goes on in the atmosphere, from solar radiation to the size of a shopping center parking lot. This makes weather rather difficult to predict at times, but by measuring observable atmospheric
How Weather Gadgets Work Read More »
With the Wii, having once again established itself as the game company to beat — a position it had relinquished to its competitors, Sony and Microsoft, during the previous console war — Nintendo quickly set its sights on further broadening its outreach to new audiences. Enter the Wii Balance Board. When it was unveiled alongside
How the Wii Balance Board Works Read More »
High-definition televisions have come from the realm of early-adopting home theater enthusiasts into the average consumer market. Early HDTV sets cost thousands of dollars, but today stores sell some models for less than $300. However, buying an HDTV is just the first step in accessing HD programming. Consumers still need an HD media source to
How Satellite HD Works Read More »
The culprit is UV radiation, which is outside the range of visible light but still can affect photographic images by lowering their overall contrast. Don’t despair. You can overcome the problem by using a UV filter. By reducing the amount of UV light, you can capture a photographic image that more closely resembles the image
How UV Filters for Cameras Work Read More »
