Are there any examples of technologies have been lost over time?

What technologies have been lost? 15 Forgotten Revolutionary Technologies Ahead Of Their Time Greek Fire. Flexible Glass. Damascus steel. Apollo and Gemini Space Program Technology. Silphium. Nepenthe. Roman Concrete. Starlite Egg. What technology no longer exists? You might remember many of these, but there are plenty of the younger generation that don’t. Public telephone booths. …

What was the context of Queen Juliana’s “I can’t understand it” quote?

Why did Queen Juliana abdicate? The independence of Indonesia, which saw more than 150,000 Dutch troops stationed there as decolonization force, was regarded as an economic disaster for the Netherlands. With the certain loss of the prized colony, the queen announced her intention to abdicate, doing so on 4 September 1948. Which Dutch princess was …

How was Christian intermarriage with the Muslim Turks viewed by the Byzantines?

How did the Byzantines view Muslims? Arabs and the Middle East were among the first to embrace Christianity, leaving their print on its culture. Thus Byzantium, by geography and culture, encountered Islam at its birth. No wonder that many saw and treated Islam as a contemporary Christian “heresy” – whatever the word may connote.  How …

For steam trains, what kind of deaerator was used, if any?

Which two 2 types of de aeration are used in steam boilers? There are two basic types of deaerators, the tray-type and the spray-type: The tray-type (also called the cascade-type) includes a vertical domed deaeration section mounted on top of a horizontal cylindrical vessel which serves as the deaerated boiler feedwater storage tank. What is …

What is CINCFAIRMED?

What do you mean by confirmed? to approve someone or something officially by formal agreement: His appointment has not been confirmed by the Senate.  When it is confirm or confirmed? If you confirm an arrangement or appointment, you say that it is definite, usually in a letter or email or on the phone. If someone …

Why did East Germany fail? And why did DDR need hard currency 1986-1989?

Why did the East German economy fail? There were several reasons behind the backward economic situation in East Germany. While large sums had been poured into West Germany, especially by the United States, the Soviet Union not only put nothing into the economy of its zone but actually took out large amounts in reparations and …