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Sergius III was a duke of Naples. He was preceded by his father, Marinus II and succeeded by his son, John IV.
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Sergius III was a duke of Naples. He was preceded by his father, Marinus II and succeeded by his son, John IV.
| | This biography of an Italian noble is a stub. You can help Wikipedia by expanding it. |
In Newtonian mechanics, momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity, then the object's momentum p is:
In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert Einstein's 1905 treatment, the theory is presented as being based on just two postulates:
In physics, the twin paradox is a thought experiment in special relativity involving identical twins, one of whom makes a journey into space in a high-speed rocket and returns home to find that the twin who remained on Earth has aged more. This result appears puzzling because each twin sees the other twin as moving, and so, as a consequence of an incorrect and naive application of time dilation and the principle of relativity, each should paradoxically find the other to have aged less. However, this scenario can be resolved within the standard framework of special relativity: the travelling twin's trajectory involves two different inertial frames, one for the outbound journey and one for the inbound journey. Another way of looking at it is to realize the travelling twin is undergoing acceleration, which makes him a non-inertial observer. In both views there is no symmetry between the spacetime paths of the twins. Therefore, the twin paradox is not actually a paradox in the sense of a logical contradiction. There is still debate as to the resolution of the twin paradox.
Ohm's law states that the electric current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the three mathematical equations used to describe this relationship:
The Boltzmann constant is the proportionality factor that relates the average relative thermal energy of particles in a gas with the thermodynamic temperature of the gas. It occurs in the definitions of the kelvin and the gas constant, and in Planck's law of black-body radiation and Boltzmann's entropy formula, and is used in calculating thermal noise in resistors. The Boltzmann constant has dimensions of energy divided by temperature, the same as entropy. It is named after the Austrian scientist Ludwig Boltzmann.
In physics, equations of motion are equations that describe the behavior of a physical system in terms of its motion as a function of time. More specifically, the equations of motion describe the behavior of a physical system as a set of mathematical functions in terms of dynamic variables. These variables are usually spatial coordinates and time, but may include momentum components. The most general choice are generalized coordinates which can be any convenient variables characteristic of the physical system. The functions are defined in a Euclidean space in classical mechanics, but are replaced by curved spaces in relativity. If the dynamics of a system is known, the equations are the solutions for the differential equations describing the motion of the dynamics.
India Today is a weekly Indian English-language news magazine published by Living Media India Limited. It is the most widely circulated magazine in India, with a readership of close to 8 million. In 2014, India Today launched a new online opinion-orientated site called the DailyO.
In thermodynamics, the Gibbs free energy is a thermodynamic potential that can be used to calculate the maximum amount of work, other than pressure-volume work, that may be performed by a thermodynamically closed system at constant temperature and pressure. It also provides a necessary condition for processes such as chemical reactions that may occur under these conditions. The Gibbs free energy is expressed as
Ipsus or Ipsos or Ipsous (Ἴψους), was a town of ancient Phrygia a few miles below Synnada. The place itself never was of any particular note, but it is celebrated in history for the great battle fought in its plains, in 301 BCE, by the aged Antigonus and his son Demetrius against the combined forces of Cassander, Lysimachus, and Seleucus, in which Antigonus lost his conquests and his life. From Hierocles and the Acts of Councils, we learn that in the seventh and eighth centuries it was the see of a Christian bishop. No longer the seat of a residential bishop, Ipsus remains a titular see of the Roman Catholic Church.
Faraday's law of induction is a basic law of electromagnetism predicting how a magnetic field will interact with an electric circuit to produce an electromotive force (emf)—a phenomenon known as electromagnetic induction. It is the fundamental operating principle of transformers, inductors, and many types of electric motors, generators and solenoids.
The Syrian Communist Party is an anti-revisionist Marxist–Leninist communist party in Syria. The party emerged from a split in the Syrian Communist Party in 1986, as formed by the anti-Perestroika faction led by Khalid Bakdash. Khalid Bakdash died in 1995 and was succeeded as secretary of his party faction by his widow, Wisal Farha Bakdash. At the time of the 2000 Damascus Spring, the party was able to publish a newspaper called Sawt al-Shaab.
Pavel Golia was a Slovenian poet and playwright.
In fluid dynamics, drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers or between a fluid and a solid surface.
Mun Bhuridatta was a Thai bhikkhu from Isan region who is credited, along with his mentor, Ajahn Sao Kantasīlo, with establishing the Thai Forest Tradition or "Kammaṭṭhāna tradition" that subsequently spread throughout Thailand and to several countries abroad.
Antigonia also transliterated as Antigonea and Antigoneia was a Hellenistic city in Seleucid Empire, Syria, on the Orontes, founded by Antigonus I Monophthalmus in 307 BC, and intended to be the capital of his empire; the site is approximately 7 km northeast of Antakya, Hatay Province, Turkey. After the Battle of Ipsus, 301 BC, in which Antigonus perished, the inhabitants of Antigonia were removed by his successful rival Seleucus I Nicator to the city of Antioch, which Seleucus founded a little lower down the river. Diodorus erroneously says that the inhabitants were removed to Seleucia Pieria. Antigonia continued, however, to exist, and is mentioned in the war with the Parthians after the defeat of Crassus.
Ernst Jakob Henne was a German motorcycle racer and racecar driver.
Stephen Holden is an American writer, poet, and music and film critic.
Taran Adarsh is an Indian film critic and trade analyst. He is best known for giving trade figures and box office updates on social media, as well as his reviews for Bollywood Hungama.
Classical mechanics is a physical theory describing the motion of macroscopic objects, from projectiles to parts of machinery and astronomical objects, such as spacecraft, planets, stars, and galaxies. For objects governed by classical mechanics, if the present state is known, it is possible to predict how it will move in the future (determinism), and how it has moved in the past (reversibility).
Stephan von Breuning was an Austrian entomologist who specialised in the study of beetles (coleopterology), particularly within the longhorn family (Cerambycidae).