Calvin Harris

Adam Richard Wiles (born 17 January 1984), better known by his stage name Calvin Harris, is a Scottish DJ, singer, songwriter, record producer, recording artist and remixer. His debut album, I Created Disco, was released in 2007 and was the precursor to his top-10 singles "Acceptable in the 80s" and "The Girls". In 2009, Harris released his second studio album, Ready for the Weekend, which debuted at number one on the UK Albums Chart and earned a gold certification from the British Phonographic Industry within two months of release. Its lead single, "I'm Not Alone", became his first number one on the UK Singles Chart.

Harris rose to international prominence in 2012 with the release of his third studio album, 18 Months. Topping the UK charts, the album became his first to chart on the Billboard 200 in the US, reaching number 19. All eight of the album's singles; "Bounce", "Let's Go", "We'll Be Coming Back", "Sweet Nothing", "Drinking from the Bottle", "I Need Your Love", "Thinking About You" and "Feel So Close", along with "We Found Love" reached the top 10 of the UK Singles Chart.

DNA

Deoxyribonucleic acid (ⁱ/diˈɒksiˌraɪboʊnjʊˌkliːɪk, -ˌkleɪɪk/;DNA) is a molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all known living organisms and many viruses. DNA is a nucleic acid; alongside proteins and carbohydrates, nucleic acids compose the three major macromolecules essential for all known forms of life. Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix. The two DNA strands are known as polynucleotides since they are composed of simpler units called nucleotides. Each nucleotide is composed of a nitrogen-containing nucleobase—either cytosine (C), guanine (G), adenine (A), or thymine (T)—as well as a monosaccharide sugar called deoxyribose and a phosphate group. The nucleotides are joined to one another in a chain by covalent bonds between the sugar of one nucleotide and the phosphate of the next, resulting in an alternating sugar-phosphate backbone. According to base pairing rules (A with T, and C with G), hydrogen bonds bind the nitrogenous bases of the two separate polynucleotide strands to make double-stranded DNA. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 10³⁷, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).

Vehicle horn

A vehicle horn is a sound-making device in an automobile, truck, or other vehicle. The vehicle operator uses the horn to warn others of the vehicle's approach or presence, or to call attention to some hazard. Automobiles, trucks, ships, and trains are required by law in some countries to have horns. Bicycles in many areas are also legally required to have an audible warning device, but not universally, and not always a horn.

Types

Bicycle

Bicycles often have a classic bulb horn, operated by squeezing a rubber bulb attached to a metal horn. Squeezing the bulb forces air through a steel reed located in the throat of the horn, making it vibrate, producing a single note. The flaring horn matches the acoustic impedance of the reed to the open air, radiating the sound waves efficiently, making the sound louder. Other types of horns used on bicycles include battery-operated horns (sometimes even car horns on 12-volt circuits are incorporated), and small air horns powered by a small can of compressed gas.

Harris

Harris may refer to:

Places

Canada

Scotland

United States

Elsewhere

Other places with "Harris" in the name

People

Calvin

Calvin may refer to:

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Places

In the United States

Elsewhere

Schools

Other uses