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Machu Picchu [a] is a 15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a mountain ridge at 2,430 meters (7,970 ft). [9] Often referred to as the "Lost City of the Incas", [10] it is the most familiar icon of the Inca Empire.
Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link.
The Union Council of Ministers, [1] also called Union Cabinet is the principal executive organ of the Government of India, which functions as the senior decision-making body of the executive branch. It is chaired by the prime minister and consists of the heads of each of the executive government ministries.
9-1-1 is an American procedural drama television series created by Ryan Murphy, Brad Falchuk, and Tim Minear. The series had aired on Fox and currently airs on ABC . [ 1 ] The series follows the lives of Los Angeles first responders : police officers , paramedics , firefighters , and dispatchers .
Bluetooth Low Energy (Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart [1]) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) [2] aimed at novel applications in the healthcare, fitness, beacons, [3] security, and home entertainment industries. [4]
[171] In the first half of the 17th century, a plague killed some 1.7 million people in Italy. [172] More than 1.25 million deaths resulted from the extreme incidence of plague in 17th-century Spain. [173] The Black Death ravaged much of the Islamic world. [174] Plague could be found in the Islamic world almost every year between 1500 and 1850.
On July 27, 1899, the brothers put wing warping to the test by building and flying a biplane kite with a 5-foot (1.5 m) wingspan, and a curved wing with a 1-foot (0.30 m) chord. When the wings were warped, or twisted, the trailing edge that was warped down produced more lift than the opposite wing, causing a rolling motion.
In nuclear physics, the semi-empirical mass formula (SEMF) (sometimes also called the Weizsäcker formula, Bethe–Weizsäcker formula, or Bethe–Weizsäcker mass formula to distinguish it from the Bethe–Weizsäcker process) is used to approximate the mass of an atomic nucleus from its number of protons and neutrons.