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  2. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    These account for about 30% of gamma-ray bursts, but until 2005, no afterglow had been successfully detected from any short event and little was known about their origins. Since then, several dozen short gamma-ray burst afterglows have been detected and localized, several of which are associated with regions of little or no star formation, such ...

  3. Gamma ray - Wikipedia

    en.wikipedia.org/wiki/Gamma_ray

    A gamma ray, also known as gamma radiation (symbol. γ. ), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays. With frequencies above 30 exahertz ( 3 × 1019 Hz) and wavelengths less than 10 ...

  4. Radiation - Wikipedia

    en.wikipedia.org/wiki/Radiation

    In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1] [2] This includes: electromagnetic radiation consists of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation consists of ...

  5. Restrictions on TikTok in the United States - Wikipedia

    en.wikipedia.org/wiki/Restrictions_on_TikTok_in...

    An August 2020 poll from Reuters/Ipsos, surveying 1,349, had 40% supporting Trump's move to ban the app, 30% opposed, and 30% uncertain. A December 2022 poll from Rasmussen Reports, surveying 1,000 likely U.S. voters, found that 68% supported proposals to federally ban TikTok, with 43% strongly supporting a ban. Conversely, 24% surveyed were ...

  6. Coupon (finance) - Wikipedia

    en.wikipedia.org/wiki/Coupon_(finance)

    In finance, a coupon is the interest payment received by a bondholder from the date of issuance until the date of maturity of a bond . Coupons are normally described in terms of the "coupon rate", which is calculated by adding the sum of coupons paid per year and dividing it by the bond's face value. For example, if a bond has a face value of ...

  7. Ultima Online - Wikipedia

    en.wikipedia.org/wiki/Ultima_Online

    Ultima Online ( UO) is a fantasy massively multiplayer online role-playing game (MMORPG) released on September 24, 1997 [1] by Origin Systems . Set in the Ultima universe, it is known for its extensive player versus player combat system. Since its release, it has added eight expansion packs, a booster pack, and dozens of free content updates.