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قاره ها و اقیانوس ها
زمین خشک در سطح زمین به قاره ها تقسیم می شود که توسط اقیانوس ها از هم جدا می شوند۔
Theatre of Dionysus (Athens, 4th century BC)
The theatre that has a distinctive shape and excellent acoustics was situated at the side of the Acropolis in Athens.
آسیاب آبی
دستگاه هاي تبدیل انرژی آب جاری یا ریزش آب به اشکال مفید قدرت قبلاً در قرون وسطی مورد استفاده قرار می گرفتند۔
Solids of revolution
Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.
استخراج گاز طبیعی دریایی ، نروژ
ترول A یک سکوی گاز طبیعی دریایی است ، بزرگترین سکو دریایی که تاکنون ساخته شده است: حدود۱۷۰ متر از سطح آب بالا آمده ، ۶۵۶۰۰۰ تن وزن دارد و ارتفاع کلی آن ۴۷۲...
Viking stave church (Borgund, 13th century)
A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.
The Black Death (Europe, 1347–1353)
The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
The spread of Homo sapiens on Earth
The 'wise man' originated in Africa and dispersed throughout most of the continents.
سرباز رومی - قرن اول قبل از میلاد
مزدوران ارتش روم باستان به خوبی آموزش دیده و مجهز به جدیدترین سلاح ها بودند۔
Yuri Gagarin's journey to outer space (1961)
Yuri Gagarin became the first human in space on 12 April 1961.
Mail coach service (Great Britain, 18th century)
Before the emergence of motorised vehicles, letters and parcels were delivered by horse-drawn mail coaches.
The life cycle of vertebrates
The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...
Nikola Tesla's laboratory (Shoreham, USA)
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
The mechanism of vision
The curvature of the lens of the eye changes when we look at a distant or at a near object, to ensure a sharp image.
Mount Rushmore (USA)
Carved into a granite cliff, the sculptures of the Mount Rushmore National Memorial depict four great United States presidents.
African village (Sudan)
African villages adapt to the natural environment well and reflect of the culture of local tribes.
The New Horizons mission
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.