Well not everyday, just on certain days they like to remind you of certain events throughout time or a certain someone. Google routinely modifies its logo in accordance with various holidays or special events throughout the year, such as Christmas, Mother's Day, or the birthdays of various notable individuals. But whatever it may be its always interesting, and they do make you think now, dont they?! Like say today for example is: The Invention of the First Laser on this day May 16th (1960). The first working laser was demonstrated on May 16, 1960 by Theodore Maiman at Hughes Research Laboratories. Recently, lasers have become a multi-billion dollar industry. The most widespread use of lasers is in optical storage devices such as compact disc and DVD players, in which the laser (a few millimeters in size) scans the surface of the disc. Other common applications of lasers are bar code readers, laser printers and laser pointers. In industry, lasers are used for cutting steel and other metals and for inscribing patterns (such as the letters on computer keyboards). Lasers are also commonly used in various fields in science, especially spectroscopy, typically because of their well-defined wavelength or short pulse duration in the case of pulsed lasers. Lasers are used by the military for rangefinding, target identification and illumination for weapons delivery. Lasers used in medicine are used for internal surgery and cosmetic applications. Hope this helps & have a great day!