Browse Definitions :
Definition

space

Space is a term that can refer to various phenomena in science, mathematics, and communications.

In astronomy and cosmology, space is the vast 3-dimensional region that begins where the earth's atmosphere ends. Space is usually thought to begin at the lowest altitude at which satellites can maintain orbits for a reasonable time without falling into the atmosphere. This is approximately 160 kilometers (100 miles) above the surface. Astronomers may speak of interplanetary space (the space between planets in our solar system), interstellar space (the space between stars in our galaxy), or intergalactic space (the space between galaxies in the universe). Some scientists believe that space extends infinitely far in all directions, while others believe that space is finite but unbounded, just as the 2-space surface of the earth has finite area yet no beginning nor end.

In mathematics, space is an unbounded continuum (unbroken set of points) in which exactly three numerical coordinates are necessary to uniquely define the location of any particular point. It is sometimes called 3-D space because it contains three distance dimensions. If a continuum requires fewer or more than three coordinates (dimensions) to uniquely define the location of a point, that continuum is sometimes called n-space or n-dimensional space, where n is the number of dimensions. Thus, for example, a line constitutes 1-space and a plane constitutes 2-space. When time is considered as a dimension along with the usual three in conventional space, the result is sometimes called 4-space, 4-dimensional space, time-space, or space-time.

In digital communications, the term space refers to an interval during which no signal is transmitted, or during which the signal represents logic 0. The term space may also be used in reference to the time interval separating two characters, bytes, octets, or words in a digital signal.

See a tutorial on plotting and describing points in 3-D space:

This was last updated in February 2016

Continue Reading About space

Join the conversation

3 comments

Send me notifications when other members comment.

Please create a username to comment.

this is great! great web.
Cancel
Space and beyond space

When the idea of space is born, something is available. Let us imagine we have the tiniest particle available in any form. Then there is a region around it as field of intensity. This is the space acquired by something and nothing beyond this region. So we can derive a definition for the space.

Beyond this region space is not available. Therefore space is having a limit and we cannot say space is limitless or endless. Further, we cannot enter in to nothing region even by thoughts, because thoughts also are something.

This way we can conclude that the space is having an end and it is having limits.
Cancel
Suppose space is an idea born with each person. Your personal space meets your definition, but there's also my personal space, and everyone else's and these tend to fuse. Our fused space may or may not have an end and limits, but there are ends and there are endings. Some ends can be bypassed or passed thru.

I think 'thing' and 'nothing' are the same thing, words. Not to drag this on, but in using words I think I would think in the foursome of thing, item, other and else. I don't think I would call a word a 'thing'. It carries reality, but it isn't real, except as ink or sound or some equivalent.
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

SearchSecurity

  • RSA algorithm (Rivest-Shamir-Adleman)

    The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security ...

  • remote access

    Remote access is the ability to access a computer or a network remotely through a network connection.

  • IP Spoofing

    IP spoofing is the crafting of Internet Protocol (IP) packets with a source IP address that has been modified to impersonate ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data...

  • disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object ...

  • optical storage

    Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media, ...

Close