Lighthouse of Alexandria, one of the Seven Wonders of the World and the most famous lighthouse in antiquity. It was a technological triumph and is the …
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Feb 22, 2025
I was unsure about going in because there was a queue, but I'm pleased I did. It's a nice experience. The restoration of the fort is being undertaken with care and love for the building. There are s…Full review by Mark F
Oct 4, 2024
The 15th-Century Qaitbay Citadel is built on the site of the legendary Pharos Lighthouse of Alexandria, one of the seven ancient wonders of the world. A privilege to see the site and a beautiful area…Full review by Chris S
May 7, 2024
Well you know the lighthouse no longer exists. It tumbled down in an earthquake during the 14th Century. It was eventually replaced by the fort at the same site, as well as an expanded harber.Full review by Thomas V
In petroleum refining, what name is given to the process by which heavy hydrocarbon molecules are broken up into lighter molecules by means of heat and pressure?
A:
In petroleum refining, cracking is the process by which heavy hydrocarbon molecules are broken up into lighter molecules by means of heat and usually pressure and sometimes catalysts.
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