Solids that form during a reaction between chemicals in solution are called precipitates. Precipitation reactions can help isolate useful products; they also help researchers identify ions in solution ...

A Fast Fourier Transform, or FFT, is the simplest way to distinguish the frequencies of a signal. Use the process for cellphone and Wi-Fi transmissions, compressing audio, image and video files, and ...

Whether you need to fix, build, create or learn, eHow gives you practical solutions to the problems life throws at you. We empower you to efficiently solve each new challenge and make your life better ...

DPI stands for dots per inch and is commonly used when referring to image resolution while viewing images on a computer. This term is a bit of a misconception, since digital images are not generated ...

Down duvets are thick, fluffy and warm, which makes them perfect for snuggling under during the winter months. When the weather is warm, you may not use your duvet and may even put it in storage, once ...

Flood walls are architectural structure designed to contain water from lakes, rivers or other waterways in the event that they rise to abnormal levels. Flood walls differ from drainage canals ...

Nepotism is “the practice among those with power or influence of favouring relatives or friends, especially by giving them jobs,” according to the Oxford Dictionaries. Eleven million people got a job ...

Crab legs are a widely eaten seafood dish. Like all perishable foods, crab legs are susceptible to spoilage. You should always avoid eating spoiled food. Food poisoning is a common result of ingesting ...

Check the temperature in the room, as if it too cold it will affect the freezer operation. If it is below 10 degrees Celsius (50 degrees Fahrenheit) then the compressor will not switch on often enough ...

The Astra automobile goes by different names in different markets. In the UK it's called the Vectra, while in China it's the Buick Excelle. In the U.S. it's the Saturn Astra, which ceased production ...

The German toy producer Steiff created the plush teddy bear in 1902. Steiff bears are famous for being made by hand with fine materials. Steiff's exclusive trademark is a metallic button in the ear of ...

The Pareto chart is based on the research of Villefredo Pareto. He found that approximately 80 per cent of all wealth of Italian cities he researched was held by only 20 per cent of the families. The ...