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  2. Amazon Has Deals Up To 50% Off Under-Desk Treadmills For ...

    www.aol.com/amazon-deals-50-off-under-162100120.html

    amazon.com. $269.95. More. Let's start with our fave treadmill on this list, the Merach Walking Pad, which is currently discounted for 47 percent off. WH executive health and fitness director ...

  3. Amazon Memorial Day tech deals - AOL

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    Best Amazon Memorial Day tech deals. Morento Air Purifier. $70 $153. Save $83 with coupon. See at Amazon. ... you'll want this HEPA air purifier that's currently over 50% off. Not only can it ...

  4. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    The bright rings form as a result of X-rays scattered from otherwise unobservable dust layers within our galaxy that lie in the direction of the burst. Most observed events (70%) have a duration of greater than two seconds and are classified as long gamma-ray bursts.

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    The Best Prime Day Lightning Deals to Shop Right Now. Garyway. Percussion Massager for Full Body Massage. $20 $60 Save $40. A great way to get rid of some aches and pains, this deep tissue massage ...

  6. 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 ...

  7. X-ray - Wikipedia

    en.wikipedia.org/wiki/X-ray

    X-rays (or rarely, X-radiation) are a form of high-energy electromagnetic radiation. In many languages, it is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it in 1895 [1] and named it X-radiation to signify an unknown type of radiation.