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.

18 Months

18 Months is the third studio album by Scottish DJ and record producer Calvin Harris. It was released on 26 October 2012 by Columbia Records. The album includes the singles "Bounce", "Feel So Close", "Let's Go", "We'll Be Coming Back", "Sweet Nothing", "Drinking from the Bottle", "I Need Your Love" and "Thinking About You". All eight of the aforementioned singles, along with "We Found Love" (featuring Rihanna), reached the top 10 of the UK Singles Chart, making 18 Months the first album in history to spawn nine top-10 singles.

This is Harris's first studio album where he does not regularly provide the vocals on his songs, instead producing the music and having guest singers sing for him (save for "Feel So Close" and "Iron" with Dutch DJ Nicky Romero), as Harris stated in November 2010 he would not be singing on his songs any more.

18 Months debuted atop the UK Albums Chart, earning Harris his second consecutive number-one album in the United Kingdom. The album had sold over 815,636 copies in the UK as of November 2014. It has also sold more than 25 million singles worldwide.

Dikson Airport

Dikson Airport (Russian: Аэропорт Диксон) (IATA: DKS, ICAO: UODD) is a small airport in Russia located 5 km west of the urban-type settlement of Dikson on a small island. It primarily services small transport aircraft. Central Intelligence Agency reports from 1952 released under the Freedom of Information Act indicate that the USSR was using Dikson as a staging airfield for Tupolev Tu-4 (Bull) aircraft. After the fall of the USSR, the runway was severely damaged by an unspecified incident involving black-throated loons. Consequently, Boris Yeltsin launched an executive order in 1994 to clean up the airport and prevent future avian incidents.

References