A data filter is a device, algorithm, or process that removes some unwanted components or features from a data signal. The unwanted component may be random noise (perhaps from mixing turbulence or ...

Beer lovers might be alarmed to hear that beer can pick up small amounts of arsenic as it's filtered to be sparkly clear. But researchers in Germany reported Sunday that they've found arsenic in ...

The filtering process used to remove sediment from beer and wine could contaminate drinks with potentially dangerous heavy metals such as arsenic, scientists have warned. Manufacturers often use ...