Modeling temperature variation on distant stars

New research is helping to explain one of the big questions that has perplexed astrophysicists for the past 30 years—what causes the changing brightness of distant stars called magnetars.

New algorithm sharpens focus of world's most powerful microscopes

We've all seen that moment in a cop TV show where a detective is reviewing grainy, low-resolution security footage, spots a person of interest on the tape, and nonchalantly asks a CSI technician to "enhance that." A few keyboard ...

Searching for the chemistry of life

In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form ...

Revised code could help improve efficiency of fusion experiments

An international team of researchers led by the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) has upgraded a key computer code for calculating forces acting on magnetically confined plasma in ...

Study reveals two major microbial groups can't breathe

A new scientific study has revealed unique life strategies of two major groups of microbes that live below Earth's surface. A publication in Frontiers in Microbiology reports that these groups, originally thought to rely ...

Machine learning peeks into nano-aquariums

In the nanoworld, tiny particles such as proteins appear to dance as they transform and assemble to perform various tasks while suspended in a liquid. Recently developed methods have made it possible to watch and record these ...

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Code

A code is a rule for converting a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type.

In communications and information processing, encoding is the process by which information from a source is converted into symbols to be communicated. Decoding is the reverse process, converting these code symbols back into information understandable by a receiver.

One reason for coding is to enable communication in places where ordinary spoken or written language is difficult or impossible. For example, semaphore, where the configuration of flags held signaller or the arms of a semaphore tower encodes parts of the message, typically individual letters and numbers. Another person standing a great distance away can interpret the flags and reproduce the words sent.

This text uses material from Wikipedia, licensed under CC BY-SA