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it means that you get money

Walking (also known as ambulation) is one of the main gaits of locomotion among legged animals, and is typically slower than running and other gaits. Walking is defined by an 'inverted pendulum' gait in which the body vaults over the stiff limb or limbs with each step. This applies regardless of the number of limbs - even arthropods with six, eight or more limbs.

The word walk is descended from the Old English wealcan "to roll". In humans and other bipeds, walking is generally distinguished from running in that only one foot at a time leaves contact with the ground and there is a period of double-support. In contrast, running begins when both feet are off the ground with each step. This distinction has the status of a formal requirement in competitive walking events. For quadrupedal species, there are numerous gaits which may be termed walking or running, and distinctions based upon the presence or absence of a suspended phase or the number of feet in contact any time do not yield mechanically correct classification. The most effective method to distinguish walking from running is to measure the height of a person's center of mass using motion capture or a force plate at midstance. During walking, the center of mass reaches a maximum height at midstance while during running, it is at a minimum. Definitions based on the percent of the stride during which a foot is in contact with the ground (averaged across all feet) of greater than 50% contact corresponds well with identification of 'inverted pendulum' mechanics and are indicative of walking for animals with any number of limbs, although this definition is incomplete. Running humans and animals may have contact periods greater than 50% of a gait cycle when rounding corners, running uphill or carrying loads.

A shadow is an area where direct light from a light source cannot reach due to obstruction by an object. It occupies all of the space behind an opaque object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or reverse projection of the object blocking the light. The sun causes many objects to have shadows and at certain times of the day, when the sun is at certain heights, the lengths of shadows change.

An astronomical object casts human-visible shadows when its apparent magnitude is equal or lower than −4. Currently the only astronomical objects able to produce visible shadows on Earth are the sun, the moon and, in the right conditions, the planet Venus.

Shadow length when caused by the sun changes dramatically throughout the day. The length of a shadow cast on the ground is proportional to the cotangent of the sun's elevation angle—its angle θ relative to the horizon. Near sunrise and sunset, when θ = 0° and cot(θ) is infinite, shadows can be extremely long. If the sun passes directly overhead, then θ = 90°, cot(θ)=0, and shadows are cast directly underneath objects.

Paul Bernard Rodgers (born 17 December 1949, Middlesbrough) is an English rock singer-songwriter, best known for his success in the 1970s as a member of Free and Bad Company. After stints in two less successful bands in the 1980s and early 1990s, The Firm and The Law, he became a solo artist. He has recently toured and recorded with another 1970s band, Queen. Rodgers has been dubbed "The Voice" by his fans. A poll in Rolling Stone magazine ranked him number 55 on its list of the "100 Greatest Singers of All Time".

Rodgers has been cited as a significant influence on a number of notable rock singers, including David Coverdale, John Waite, Steve Overland, Lou Gramm, Jimi Jamison, Eric Martin, Steve Walsh, Joe Lynn Turner, Paul Young, Robin McAuley, Jimmy Barnes, Richie Kotzen and Joe Bonamassa. In 1991, John Mellencamp called Rodgers "the best rock singer ever."

Paul Rodgers played bass (he later moved onto vocals) in local band The Roadrunners, which just before leaving Middlesbrough for the London music scene changed its name to The Wildflowers. Other members of this band were Micky Moody (later of Whitesnake) and Bruce Thomas (later of Elvis Costello and The Attractions). Rodgers appeared on the British music scene in 1968 as singer/songwriter for bluesy rockers Free. In 1970, they shot up the international radio charts with "All Right Now", which Rodgers wrote with the group's bassist Andy Fraser.

Paul Francis Kossoff (14 September 1950 – 19 March 1976) was an English rock guitarist best known as a member of the band Free.

Kossoff was ranked 51st in Rolling Stone magazine list of the "100 Greatest Guitarists of All Time".^{[dead link]}

Kossoff was the son of Margaret (Jenkins) and the British actor David Kossoff. His father was of Russian-Jewish descent. Kossoff started playing guitar in the mid 1960s, taught by session guitarist Colin Falconer. He became a professional at age 15 when he was a founding member of Black Cat Bones. The band played with touring blues piano player Champion Jack Dupree, did many supporting shows for Fleetwood Mac and other gigs with Fleetwood Mac cofounder Peter Green. Kossoff would jam and spend hours discussing blues playing and players. Kossoff's bandmate in Black Cat Bones was drummer Simon Kirke, and the two would go on to play on Champion Jack Dupree's April 1968 album When You Feel the Feeling you was Feeling.

In April 1968 Kossoff and Kirke teamed up with Paul Rodgers (vocals) and Andy Fraser (bass) to form Free. They did the "Transit" circuit for two years and recorded two albums: Tons of Sobs (1968) and Free (1969). Both albums showcased the band's blues- and soul-influenced sound, a style which was in contrast to some of their progressive and heavier counterparts at the time.