در تعالیم دین اسلام شب قدر (به عربی:لیلة القدر) به صورت احتمالی: شب پیش از روز ۱۹ یا ۲۱ یا ۲۳ و یا۲۷ ماه رمضان است که سه اتفاق و یک رویکرد بزرگ در این شب به وقوع می‌پیوندد:
سه اتفاق:
یک رویکرد:
بمباران اتمی هیروشیما و ناگازاکی دو عملیات اتمی بودند که در زمان جنگ جهانی دوم به دستور هری ترومن، رئیس جمهوروقت آمریکا، علیه امپراتوری ژاپن انجام گرفتند. در این دو عملیات، دو بمب اتمی به فاصله ۳ روز بر روی شهرهای هیروشیما و ناگازاکی انداخته شد که باعث ویرانی و کشتار گسترده شهروندان این دو شهر گردید. حدود ۲۲۰٬۰۰۰ نفر در اثر این دو بمباران اتمی جان باختند که بیشتر آنان را شهروندان غیرنظامی تشکیل می‌دادند. بیش از ۱۰۰٬۰۰۰ نفر بلافاصله هنگام بمباران کشته شدند و بقیه تا پایان سال ۱۹۴۵ بر اثر اثرات مخرب تشعشعات رادیواکتیو جان خود را از دست دادند.
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بمباران هسته‌ای هیروشیما و ناگازاکی تا به امروز تنها موارد استفادهٔ جنگی از سلاح هسته‌ای در جهان است.
پس از این دو بمباران، دولت ژاپن تسلیم شد.
عملیات اول در تاریخ دوشنبه، ساعت 8 و 15 دقیقه روز ۶ اوت ۱۹۴۵ به وقت محلی در شهرهیروشیما انجام گرفت.
Maria Skłodowska was born in Warsaw, in the Russian partition of Poland, on 7 November 1867, the fifth and youngest child of well-known teachers Bronisława, née Boguska, and Władysław Skłodowski. The elder siblings of Maria (nickname: Mania) were Zofia (born 1862, nickname:Zosia), Józef (born 1863, nickname:Józio), Bronisława (born 1865, nickname: Bronia) and Helena (born 1866, nickname: Hela).
On both the paternal and maternal sides, the family had lost their property and fortunes through patriotic involvements in Polish national uprisings aimed at restoring Poland's independence (the most recent had been the January Uprising of 1863–65). This condemned the subsequent generation, including Maria, her elder sisters and her brother, to a difficult struggle to get ahead in life.
Known for inventing dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel producer to a major manufacturer of cannon and other armaments. Nobel held 355 different patents, dynamite being the most famous. After reading a premature obituary which condemned him for profiting from the sales of arms, he bequeathed his fortune to institute theNobel Prizes. The synthetic elementnobelium was named after him. His name also survives in modern-day companies such as Dynamit Nobel andAkzoNobel, which are descendants of mergers with companies Nobel himself established.
In computing, PC Card is a configuration for computerparallel communication peripheral interface, designed for laptopcomputers. Originally introduced asPCMCIA Card, the PC Card standard as well as its successors like CardBus were defined and developed by the Personal Computer Memory Card International Association (PCMCIA).
deoconferencing (VC) is the conduct of a videoconference(also known as a video conference orvideoteleconference) by a set oftelecommunication technologies which allow two or more locations to communicate by simultaneous two-way video and audio transmissions. It has also been called 'visual collaboration' and is a type of groupware.
Like many inventions today there are disputes in origins of the original inventors. The same dispute applies to who invented the microscope.
Dating back to the first century when glass was first invented, the Roman's were investigating the use of glass and how viewing objects through it, made the objects appear larger.
Then, in the 13th Salvino D'Armate from Italy, made the first eye glass, providing the wearer with an element of magnification to one eye.
The earliest simple forms of magnification were magnifying glasses, usually about 6x - 10x and were used for inspecting tiny insects such as fleas, hence these early magnifiers called "flea glasses".
Then, during the 1590's, two Dutch spectacle makers, Zacharias Jansen and his father Hans started experimenting with these lenses. They put several lenses in a tube and made a very important discovery. The object near the end of the tube appeared to be greatly enlarged, much larger than any simple magnifying glass could achieve by itself.
Their first microscopes were more of a novelty than a scientific tool since maximum magnification was only around 9x and the images were somewhat blurry. Although no Jansen microscopes survived, an instrument made for Dutch royalty was described as being composed of "3 sliding tubes, measuring 18 inches long when fully extended, and two inches in diameter". The microscope was said to have a magnification of 3x when fully closed, and 9x when fully extended.
Newton, Sir Isaac (1642-1727), mathematician and physicist, one of
the foremost scientific intellects of all time. Born at Woolsthorpe,
near Grantham in Lincolnshire, where he attended school, he entered
Cambridge University in 1661; he was elected a Fellow of Trinity College
in 1667, and Lucasian Professor of Mathematics in 1669. He remained at
the university, lecturing in most years, until 1696. Of these Cambridge
years, in which Newton was at the height of his creative power, he
singled out 1665-1666 (spent largely in Lincolnshire because of plague
in Cambridge) as "the prime of my age for invention". During two to
three years of intense mental effort he prepared Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) commonly known as the Principia, although this was not published until 1687.
Amyotrophic lateral sclerosis (ALS), sometimes called Lou Gehrig's disease, is a rapidly progressive, invariably fatal neurological disease that attacks the nerve cells (neurons) responsible for controlling voluntary muscles (muscle action we are able to control, such as those in the arms, legs, and face). The disease belongs to a group of disorders known as motor neuron diseases, which are characterized by the gradual degeneration and death of motor neurons.
