Google X-Rays Logo Celebrates 115th Anniversary of the Discovery of X-rays

Google X-Rays Logo Celebrates 115th Anniversary of the Discovery of X-rays on 08th November, 2010. Google show's the X-rays logo at their SERP's.

X-ray - From Wikipedia, the free encyclopedia:-

X-radiation (composed of X-rays) is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3 × 10¹⁶ Hz to 3 × 10¹⁹ Hz) and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma rays. In many languages, X-radiation is called Röntgen radiation, after Wilhelm Conrad Röntgen, who is generally credited as their discoverer, and who had named them X-rays to signify an unknown type of radiation.

Correct spelling of X-ray(s) in the English language includes the variants x-ray(s) and X ray(s). XRAY is used as the phonetic pronunciation for the letter x.

X-rays from about 0.12 to 12 keV (10 to 0.10 nm wavelength) are classified as "soft" X-rays, and from about 12 to 120 keV (0.10 to 0.01 nm wavelength) as "hard" X-rays, due to their penetrating abilities.

Check out Google Search Home Page Logo's on previous occasions and get full information on when, why Google displayed different logos at their Home Page (GOOGLE.COM)

If you liked this blog article please Subscribe to TopRankSEO Blog RSS feeds, to get all the latest Google SEO, Analytics, Social Media, Online Marketing & Search Engine News. Meet TopRankSEO blog at Facebook or Share it with your Twitter Network.