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  2. Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Global_Positioning_System

    The spectrum allocated for GPS L1 use by the FCC is 1559 to 1610 MHz, while the spectrum allocated for satellite-to-ground use owned by Lightsquared is the Mobile Satellite Service band. [201] Since 1996, the FCC has authorized licensed use of the spectrum neighboring the GPS band of 1525 to 1559 MHz to the Virginia company LightSquared.

  3. Cyberwarfare - Wikipedia

    en.wikipedia.org/wiki/Cyberwarfare

    There is ongoing debate over how cyberwarfare should be defined and no absolute definition is widely agreed upon. [9] [12] While the majority of scholars, militaries, and governments use definitions that refer to state and state-sponsored actors, [9] [13] [14] other definitions may include non-state actors, such as terrorist groups, companies, political or ideological extremist groups ...

  4. Internet censorship in Iran - Wikipedia

    en.wikipedia.org/wiki/Internet_censorship_in_Iran

    Some websites and keywords related to pornography are blocked in the American proxy, although the list of banned words is publicly available. [ 160 ] [ 161 ] Non- pornographic websites may be inadvertently blocked; for example, the banning of ass blocks access to the website of the United States Embassy.

  5. 2023 in science - Wikipedia

    en.wikipedia.org/wiki/2023_in_science

    12 April: Researchers demonstrate an 'AI scientist' that can rediscover physical laws from axioms and data. 14 April: Launch of the JUICE mission to Jupiter. 3 April. Five employees at the National Hurricane Center publish a tropical cyclone report (TCR) on Hurricane Ian, which officially upgrades the hurricane from a Category 4 to a Category 5 on the Saffir–Simpson scale.