Khan Academy

Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.

History

The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.

In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.

Voltage

Voltage, electric potential difference, electric pressure or electric tension (denoted ∆V or ∆U) is the difference in electric potential energy between two points per unit electric charge. The voltage between two points is equal to the work done per unit of charge against a static electric field to move the charge between two points and is measured in units of volts (a joule per coulomb).

Voltage can be caused by static electric fields, by electric current through a magnetic field, by time-varying magnetic fields, or some combination of these three. A voltmeter can be used to measure the voltage (or potential difference) between two points in a system; often a common reference potential such as the ground of the system is used as one of the points. A voltage may represent either a source of energy (electromotive force), or lost, used, or stored energy (potential drop).

Definition

Given two points in space, A and B, voltage is the difference in electric potential between those two points. From the definition of electric potential it follows that:

Las Vegas

Las Vegas (/lɑːs ˈveɪɡəs/, also locally /lɑːs ˈvɛɡᵻs/; Spanish: [laz ˈβeɣas]) officially the City of Las Vegas and often known as simply Vegas, is a city in the United States, the most populous city in the state of Nevada, the county seat of Clark County, and the city proper of the Las Vegas Valley. Las Vegas is an internationally renowned major resort city known primarily for gambling, shopping, fine dining and nightlife and is the leading financial and cultural center for Southern Nevada.

The city bills itself as The Entertainment Capital of the World, and is famous for its mega casino–hotels and associated entertainment. A growing retirement and family city, Las Vegas is the 29th-most populous city in the United States, with a population of 603,488 at the 2013 United States Census Estimates. The 2013 population of the Las Vegas metropolitan area was 2,027,828. The city is one of the top three leading destinations in the United States for conventions, business, and meetings. In addition, the city's metropolitan area has more AAA Five Diamond hotels than any other city in the world, and is a global leader in the hospitality industry. Today, Las Vegas is one of the top tourist destinations in the world.

Danny Ávila

Danny Ávila (born 1995) is a Spanish house and electro house DJ and producer.

Career

He has worked with Tiësto, Deniz Koyu, The Black Eyed Peas and Fedde Le Grand. His first set was in 2010 in the Spanish club Kapital. In 2011, he was nominated as the "DJ Revelación" at the Vicious Music Awards by Ron Barceló 2011. In the summer of 2012 he was the youngest DJ of the beach club Blue Marlin. In September 2012 he worked in the United States, the Tour Generation Wild with the artists Deniz Koyu, Mikael Weermets, Sick Individuals and dBerrie. He got into the business by his dad, a club owner, who pushed him forward. He also worked in Macao, Manila, Londres, and San Paolo.

Ávila debuted at the Ultra Music Festival of Miami in March 2013. He signed a contract with MGM of Vegas as the youngest resident in the history of Hakkasan in 2013 with artists like Steve Aoki, Laidback Luke, DeadMau5, Tommy Trash, Tiesto and Calvin Harris.

The MTV channel and the Billboard magazines identified his as "one to watch".