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  2. Smartphone - Wikipedia

    en.wikipedia.org/wiki/Smartphone

    The first mass-market camera phone was the J-SH04, a Sharp J-Phone model sold in Japan in November 2000. [87] [88] It could instantly transmit pictures via cell phone telecommunication. [89] By the mid-2000s, higher-end cell phones commonly had integrated digital cameras.

  3. Xbox One - Wikipedia

    en.wikipedia.org/wiki/Xbox_One

    The 2 TB model was released on August 2, 2016, [105] [336] and 1 TB and 500 GB models were released on August 23, 2016. [337] A Gears of War 4 special edition was also released. [338] On June 11, 2017, Microsoft lowered the prices of the 500 GB Battlefield 1 and 1 TB Forza Horizon 3 Xbox One S console bundles by US$50. [339]

  4. Planck units - Wikipedia

    en.wikipedia.org/wiki/Planck_units

    The Bekenstein–Hawking entropy of a black hole is one-fourth the area of its event horizon in units of Planck length squared. [ 11 ] : 370 Since the 1950s, it has been conjectured that quantum fluctuations of the spacetime metric might make the familiar notion of distance inapplicable below the Planck length.

  5. Gravity - Wikipedia

    en.wikipedia.org/wiki/Gravity

    In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force and 10 29 times weaker than the weak interaction.

  6. Moon - Wikipedia

    en.wikipedia.org/wiki/Moon

    The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth.

  7. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    For example, in the fuzzball model [204] based on string theory, the individual states of a black hole solution do not generally have an event horizon or singularity, but for a classical/semiclassical observer the statistical average of such states appears just as an ordinary black hole as deduced from general relativity. [205]

  8. Indian Armed Forces - Wikipedia

    en.wikipedia.org/wiki/Indian_Armed_Forces

    The improved features of the MK-II version of Arjun are night vision capabilities with a thermal imaging system for detecting all kinds of missiles, Explosive Reactive Armour (ERA), mine ploughs, the ability to fire anti-tank missiles with its 120 mm main gun, an Advanced Air Defence gun capable of shooting down helicopters with a 360-degree ...