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Linklink Bertiana Lovely 081023

 Storia della televisione parte 6 Televisione digitale La televisione digitale (DTV) è la trasmissione di audio e video mediante segnali elaborati digitalmente e multiplex, in contrasto con i segnali totalmente analogici e separati da canali utilizzati dalla televisione analogica. La TV digitale può supportare più di un programma nella stessa larghezza di banda del canale. Si tratta di un servizio innovativo che rappresenta la prima significativa evoluzione della tecnologia televisiva dai tempi della televisione a colori degli anni '50. Le radici della TV digitale sono strettamente legate alla disponibilità di computer poco costosi e ad alte prestazioni. Fu solo negli anni '90 che la TV digitale divenne una possibilità reale. A metà degli anni '80 l'azienda giapponese di elettronica di consumo Sony Corporation sviluppò la tecnologia HDTV e l'attrezzatura per registrare a tale risoluzione, e il formato analogico MUSE proposto da NHK, un'emittente giapponese, fu v...

Linklink Bertiana Lovely 041023

 Sound In the 1920s, the development of electronic sound recording technologies made it practical to incorporate a soundtrack of speech, music and sound effects synchronized with the action on the screen. The resulting sound films were initially distinguished from the usual silent "moving pictures" or "movies" by calling them "talking pictures" or "talkies." The revolution they wrought was swift. By 1930, silent film was practically extinct in the US and already being referred to as "the old medium." The evolution of sound in cinema began with the idea of combining moving images with existing phonograph sound technology. Early sound-film systems, such as Thomas Edison's Kinetoscope and the Vitaphone used by Warner Bros., laid the groundwork for synchronized sound in film. The Vitaphone system, produced alongside Bell Telephone Company and Western Electric, faced initial resistance due to expensive equipping costs, but sound in cinem...

Linklink Bertiana Lovely 031023

 First motion pictures By the end of the 1880s, the introduction of lengths of celluloid photographic film and the invention of motion picture cameras, which could photograph a rapid sequence of images using only one lens, allowed action to be captured and stored on a single compact reel of film. Movies were initially shown publicly to one person at a time through "peep show" devices such as the Electrotachyscope, Kinetoscope and the Mutoscope. Not much later, exhibitors managed to project films on large screens for theatre audiences. The first public screenings of films at which admission was charged were made in 1895 by the American Woodville Latham and his sons, using films produced by their Eidoloscope company, by the Skladanowsky brothers and by the – arguably better known – French brothers Auguste and Louis Lumière with ten of their own productions. Private screenings had preceded these by several months, with Latham's slightly predating the others´s. Early evolutio...

Linklink Bertiana Lovely 021023

 Before celluloid The stroboscopic animation principle was introduced in 1833 with the stroboscopic disc (better known as the phénakisticope) and later applied in the zoetrope (since 1866), the flip book (since 1868), and the praxinoscope (since 1877), before it became the basic principle for cinematography. Experiments with early phénakisticope-based animation projectors were made at least as early as 1843 and publicly screened in 1847. Jules Duboscq marketed phénakisticope projection systems in France from c. 1853 until the 1890s. Photography was introduced in 1839, but initially photographic emulsions needed such long exposures that the recording of moving subjects seemed impossible. At least as early as 1844, photographic series of subjects posed in different positions were created to either suggest a motion sequence or document a range of different viewing angles. The advent of stereoscopic photography, with early experiments in the 1840s and commercial success since the early...

Linklink Bertiana Lovely 210923

 Okay, time to write about my .. Okay, time to write about my visit with the endo yesterday, and I can’t say I was too impressed with her even though she did acknowledge that my personal normal could be higher than the standard range and that yes, the medication can cause anxiety. She said she didn’t think the cholecystectomy was involved and that she thought it was a matter of inconsistent dosing because Levothyroxine is an off-brand despite the fact that medication sold in the US must be regulated. In other words, if I was getting blanks or at least partial blanks, you would think they would have picked up on that. But she said that with the off-brand, you never know how consistent it is or what country it was made in, etc. Then she told us to contact a pharmacy (all the way in Lakeland) to get Synthroid which is the name brand and that they would work with our insurance company. However, when we went to the site, we found that Synthroid is the only thing they sold and they would...

Linklink Bertiana Lovely 21092023

 Blurring with the mass media. Many bloggers, particularly those engaged in participatory journalism, are amateur journalists, and thus they differentiate themselves from the professional reporters and editors who work in mainstream media organizations. Other bloggers are media professionals who are publishing online, rather than via a TV station or newspaper, either as an add-on to a traditional media presence (e.g., hosting a radio show or writing a column in a paper newspaper), or as their sole journalistic output. Some institutions and organizations see blogging as a means of "getting around the filter" of media "gatekeepers" and pushing their messages directly to the public. Many mainstream journalists, meanwhile, write their own blogs—well over 300, according to CyberJournalist.net's J-blog list. The first known use of a blog on a news site was in August 1998, when Jonathan Dube of The Charlotte Observer published one chronicling Hurricane Bonnie. Some blo...

Linklink Bertiana Lovely 170923

 Types of blogs. There are many different types of blogs, differing not only in the type of content, but also in the way that content is delivered or written. Personal blogs The personal blog is an ongoing online diary or commentary written by an individual, rather than a corporation or organization. While the vast majority of personal blogs attract very few readers, other than the blogger's immediate family and friends, a small number of personal blogs have become popular, to the point that they have attracted lucrative advertising sponsorship. A tiny number of personal bloggers have become famous, both in the online community and in the real world. Collaborative blogs or group blogs A type of weblog in which posts are written and published by more than one author. The majority of high-profile collaborative blogs are organised according to a single uniting theme, such as politics, technology or advocacy. In recent years, the blogosphere has seen the emergence and growing popularit...