The History of Tourism in Ancient Greece and Rome.

Tourism in Ancient Greece and Rome: Historic Evolution of Tourism This is the first part of an investigation of the History of Tourism. The second part, Tourism in the Middle Ages can be read here Tourism is a series of trips made for pleasure or for commercial, professional or similar reasons, during which the absence of habitual residence is only temporary. Triumph Arch in Via Agrippa – Orange – (France) Modern tourism was born in the XIX century, as a …

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Evolution of a Crane and Hoist in Ancient Rome

Evolution of a Roman Crane and Hoist in Ancient Rome Ancient Roman Crane and Hoist in  Roman Empire Ancient Roman Crane and Hoist: The Roman Empire invested a lot of time, effort and money developing new cranes for the construction of their buildings, bridges and especially aqueducts. They took the Greek’s crane as a model and improved it.   Crane and Hoist in Ancient Rome Animals – Architecture – Flowers – Food & Beverages  – Places Vintage poster ads – Best Products 2021 on Amazon Roman …

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History of Power Bank

History of Power Banks and Lithium batteries When was the first call of a mobile phone? Martin Cooper, manager of Motorola, made a call to, Joel Engel, of Bell Labs of AT&TE on April 3, 1973, from Sixth Avenue in New York, with a prototype of Motorola DynaTac 8000X. That was a mobile phone that weighed approximately one kilo and was about 13 inches (33 cm) tall taking into account the antenna. It was the first call made from a …

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How Many People will Travel the World?

How many People Travel the World?: USA 2020: Covid19 TSA checkpoint travel numbers 2020 and 2019 Comparison of the number of passengers according to TSA from 3/1/2020 to present day Predictions of the number of people traveling the world in 2020 are no longer valid due to the COVID19 pandemic – The table above shows the evolution of traffic in the United States (abrupt decline at the beginning of the year) from January 2020 to data from Set 2020 according …

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Gdansk Harbor Treadwheel Crane

Gdansk Harbor Treadwheel Crane – Poland Treadwheel Crane: They were the largest cranes in Medieval Europe . Their usual operation for wheel cranes were with two squirrel cages and for two or more operators. Originally from the 15th century, it was built between 1441 and 1444. Today it is one of the most representative emblems of the city of Gdansk. The crane building in Gdansk was built in the Gothic style with steep roofs. The central tower is 31 meters …

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