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Dibenzopyrenes are a group of high molecular weight polycyclic aromatic hydrocarbons with the molecular formula C 24 H 14.There are five isomers of dibenzopyrene which differ by the arrangement of aromatic rings: dibenzo[a,e]pyrene, dibenzo[a,h]pyrene, dibenzo[a,i]pyrene, dibenzo[a,l]pyrene, and dibenzo[e,l]pyrene.
The ubiquitous compound can be found in coal tar, tobacco smoke and many foods, especially grilled meats. The substance with the formula C 20 H 12 is one of the benzopyrenes, formed by a benzene ring fused to pyrene. Its diol epoxide metabolites, more commonly known as BPDE, react with and bind to DNA, resulting in mutations and eventually cancer.
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Amazon acquired the global television rights for J. R. R. Tolkien's The Lord of the Rings (1954–55) in November 2017. The company's streaming service, Prime Video, gave a multi-season commitment to a series based on the novel and its appendices, to be produced by Amazon Studios in association with New Line Cinema and in consultation with the Tolkien Estate. [1]
Liesegang rings usually cut across layers of stratification and occur in many types of rock, some of which more commonly include sandstone and chert. [3] Though there is a high occurrence of Liesegang rings in sedimentary rocks, [6] relatively few scientists have studied their mineralogy and texture in enough detail to write more about them. [12]
Rings was released in the United States on February 3, 2017, by Paramount Pictures, and was a commercial success, grossing $83.1 million worldwide against its $25 million budget, but received largely negative reviews from critics, with criticism aimed at its mythology, similarities to previous films, reliance on jump scares, and special effects.
Clint Basinger (born December 20, 1986), [2] better known as LGR (originally an initialism of Lazy Game Reviews), is an American YouTuber who focuses on video game reviews, retrocomputing, and unboxing videos. His YouTube channel of the same name has been compared to Techmoan and The 8-Bit Guy.
In Saturn's Rings is a large format movie about Saturn made exclusively from real photographs taken by spacecraft. Director Stephen V. Stone used more than 7.5 million photographs and numerous film techniques to create the effect of flying through space around Saturn and among its rings.