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The history of photography began with the discovery of two critical principles: The first is camera obscura image projection, the second is the discovery that some substances are visibly altered by exposure to light. There are no artifacts or descriptions that indicate any attempt to capture images with light sensitive materials prior to the 18th century.
The row of digit-wheels in the carriage (at the front), is the Accumulator. In a computer 's central processing unit (CPU), the accumulator is a register in which intermediate arithmetic logic unit results are stored. Without a register like an accumulator, it would be necessary to write the result of each calculation (addition, multiplication ...
Same-sex marriage has been legal in South Africa since the Civil Union Act, 2006 came into force on 30 November 2006. The decision of the Constitutional Court in the case of Minister of Home Affairs v Fourie on 1 December 2005 extended the common-law definition of marriage to include same-sex spouses—as the Constitution of South Africa guarantees equal protection before the law to all ...
DEFCON. The defense readiness condition ( DEFCON) is an alert state used by the United States Armed Forces. [1] [2] For security reasons, the US military does not announce a DEFCON level to the public. [1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [3]
Recorded 1903. Problems playing this file? See media help. " Wedding Day at Troldhaugen " (Norwegian: " Bryllupsdag på Troldhaugen ", literally "Wedding Anniversary at Troldhaugen") is a composition for piano by Edvard Grieg. [1] It is the sixth piano piece in the eighth book of his Lyric Pieces, bearing the opus number 65.
Child pornography is illegal in most countries, but there is substantial variation in definitions, categories, penalties, and interpretations of laws. Differences include the definition of "child" under the laws, which can vary with the age of sexual consent; the definition of "child pornography" itself, for example on the basis of medium or degree of reality; and which actions are criminal (e ...
Russian wedding traditions. Traditional Russian weddings can last between two days and one week. The celebration usually involves dancing, singing, toasting, and banqueting. The best man and bridesmaid are called "Witnesses" or " Свидетели " ( svideteli) in Russian. [1] The ceremony and the ring exchange take place on the first day of ...
A crossed cheque is a cheque that has been marked specifying an instruction on the way it is to be redeemed. A common instruction is for the cheque to be deposited directly to an account with a bank and not to be immediately cashed by the holder over the bank counter. The format and wording varies between countries, but generally, two parallel ...