Batman v Superman: Dawn of Justice is a 2016 American superhero film featuring the DC Comics characters Batman and Superman. Directed by Zack Snyder and distributed by Warner Bros. Pictures, the film is a follow-up to 2013's Man of Steel and is the second installment in the DC Extended Universe. Its screenplay was written by Chris Terrio and David S. Goyer, and the film stars Ben Affleck, Henry Cavill, Amy Adams, Jesse Eisenberg, Diane Lane, Laurence Fishburne, Jeremy Irons, Holly Hunter and Gal Gadot. Batman v Superman: Dawn of Justice is the first live-action film to feature both Batman a...

A mafia is a type of organized crime syndicate whose primary activities are protection racketeering, the arbitration of disputes between criminals, and the organizing and oversight of illegal agreements and transactions. Secondary activities may be practiced such as gambling, loan sharking, drug-trafficking, and fraud. The term was originally applied to the Sicilian Mafia, but has since expanded to encompass other organizations of similar methods and purpose, e.g., "the Russian Mafia" or "the Japanese Mafia". The term is applied informally by the press and public; the criminal organizations...

Tsar /zɑːr/ (Old Church Slavonic: ц︢рь (usually written thus with a titlo) or цар, цaрь; also Czar or Tzar in Latin alphabet languages) is a title used to designate certain European Slavic monarchs or supreme rulers. As a system of government in the Tsardom of Russia and Russian Empire, it is known as Tsarist autocracy, or Tsarism. The term is derived from the Latin word Caesar, which was intended to mean "Emperor" in the European medieval sense of the term—a ruler with the same rank as a Roman emperor, with-holding it by the approval of another emperor or a supreme ecclesiastical official (the...

Anthony Philip French (born November 19, 1920) is an emeritus professor of physics at the Massachusetts Institute of Technology. He was born in Brighton, England. French is a graduate of Cambridge University, receiving his B.A. in 1942 and Ph. D. in 1948, both in physics. In 1942, he began working on the British effort to build an atomic bomb (codenamed Tube Alloys) at the Cavendish Laboratory. By 1944, Tube Alloys had been merged with the American Manhattan Project and he was sent to Los Alamos. When the War ended, he returned to the UK, where he spent a couple of years at the newly formed Atomic...

Homoaromaticity, in organic chemistry, refers to a special case of aromaticity in which conjugation is interrupted by a single sp3 hybridized carbon atom. Although this sp3 center disrupts the continuous overlap of p-orbitals, traditionally thought to be a requirement for aromaticity, considerable thermodynamic stability and many of the spectroscopic, magnetic, and chemical properties associated with aromatic compounds are still observed for such compounds. This formal discontinuity is apparently bridged by p-orbital overlap, maintaining a contiguous cycle of π electrons that is responsible for...

The green fluorescent protein (GFP) is a protein composed of 238 amino acid residues (26.9 kDa) that exhibits bright green fluorescence when exposed to light in the blue to ultraviolet range. Although many other marine organisms have similar green fluorescent proteins, GFP traditionally refers to the protein first isolated from the jellyfish Aequorea victoria. The GFP from A. victoria has a major excitation peak at a wavelength of 395 nm and a minor one at 475 nm. Its emission peak is at 509 nm, which is in the lower green portion of the visible spectrum. The fluorescence quantum yield (QY) of...