Ultraviolet

Ultraviolet (UV) light is an electromagnetic radiation with a wavelength from 400 nm (750 THz) to 10 nm (30 PHz), shorter than that of visible light but longer than X-rays. Though usually invisible, under some conditions children and young adults can see ultraviolet down to wavelengths of about 310 nm, and people with aphakia (missing lens) can also see some UV wavelengths. Near-UV is visible to some insects and birds.

UV radiation is present in sunlight, and also produced by electric arcs and specialized lights such as mercury-vapor lamps, tanning lamps, and black lights. Although lacking the energy to ionize atoms, long-wavelength ultraviolet radiation can cause chemical reactions, and causes many substances to glow or fluoresce. Consequently, biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules.

Suntan, freckling and sunburn are familiar effects of over-exposure, along with higher risk of skin cancer. Living things on dry land would be severely damaged by ultraviolet radiation from the sun if most of it were not filtered out by the Earth's atmosphere, particularly the ozone layer. More-energetic, shorter-wavelength "extreme" UV below 121 nm ionizes air so strongly that it is absorbed before it reaches the ground. Ultraviolet is also responsible for the formation of bone-strengthening vitamin D in most land vertebrates, including humans. The UV spectrum thus has effects both beneficial and harmful to human health.

Ray

Ray may refer to:

Arts and entertainment

Music

People

Places

Iran

United States

Rays (Michael Nesmith album)

Rays is an album by Michael Nesmith, originally released in a limited edition of 100 in November 2005, then later released in an unlimited edition in April 2006. Nesmith described the album as a cinematic journey of sound with elements of swing, jazz and instrumental funk that forms what he calls "New Century Modern".

The album cover is a comic strip drawn by Drew Friedman and features Nesmith "driving" through five stages of his life with a quest to looking to fill his "appetite": 1) His earlier career in The Monkees, where he is seen driving a Pontiac GTO and wearing his signature knit-cap; 2) His career as the frontman of the First National Band, driving a Jeep; 3) His Elephant Parts-era career, where he is seen driving a pink Cadillac (referring to his song, Eldorado to the Moon); 4) His later life as an author, entrepreneur and philanthropist, driving a Rolls Royce and asking, "where am I?"; 5) And in the center of the cartoon, Nesmith is sitting peacefully under a tree on a hill, content with himself, stating, "suddenly, I’m not as hungry as I’d thought".

2008 Tampa Bay Rays season

The Tampa Bay Rays' 2008 season, the 11th season in franchise history, marked the change of the team's name from the "Tampa Bay Devil Rays" to the "Tampa Bay Rays", as revealed on November 8, 2007. The change in name also came with a change in logo and uniforms, with new team colors of Columbia blue, Navy blue and gold. The new logo, colors and name were leaked on September 20, 2007, and were confirmed officially on November 8, 2007, when an official announcement was made in downtown St. Petersburg. Prior to the decision to rename the team the Rays, other options considered included the "Aces", "Bandits", "Cannons", "Dukes", "Stripes", and Stuart Sternberg's personal favorite, the "Nine."

This was the third season with Joe Maddon managing the club. The club had built upon the improvements made in 2007, and had secured the franchise's first winning record, playoff berth, and American League pennant.

The Rays played another series at Champion Stadium at Disney's Wide World of Sports Complex in 2008, making it the second year that a series had been moved to the Greater Orlando area. The April 22–24 series against the Toronto Blue Jays was selected for the move. Neither the MLB — nor the Blue Jays, who were 10–17 at Tropicana Field over the previous three seasons — resisted the idea. The series move was successfully voted on by the City of St. Petersburg, who holds the lease to Tropicana Field, on January 24, 2008. This was similar to the 2007 series against the Texas Rangers, in which the Rays also won all three games.