Dredging: Difference between revisions

Content deleted Content added
m Reverted edit by 85.252.85.95 (talk) to last version by 3knolls
Tags: Rollback Mobile edit Mobile web edit
History: Altered authors 1-1. Added translators 1-1.
Line 24:
Ancient authors refer to harbour dredging. The seven arms of the [[Nile]] were channelled and wharfs built at the time of the pyramids (4000 BC), there was extensive harbour building in the eastern Mediterranean from 1000 BC and the disturbed sediment layers gives evidence of dredging. At [[Marseille]], dredging phases are recorded from the third century BC onwards, the most extensive during the first century AD. The remains of three dredging boats have been unearthed; they were abandoned at the bottom of the harbour during the first and second centuries AD.<ref name="MMC">{{cite web |last1=Morhange |first1=Christophe |last2=Marriner |first2=Nick |last3=Carayon |first3=Nicolas |title=The eco-history of ancient Mediterranean harbours |url=https://www.ancientportsantiques.com/wp-content/uploads/Documents/AUTHORS/Morhange-PublGenerales/Morhange2016-HistoryPorts.pdf|access-date=1 July 2018}}</ref>
 
The [[Banū Mūsā brothers|Banu Musa brothers ]]during the Muslim Golden Age in while working at the Bayt-Al-Hikmah (house of wisdom) in Baghdad, designed an original invention in their book named ‘[[Book of Ingenious Devices]]’, a grab machine that does not appear in any earlier Greek works. The grab they described was used to extract objects from underwater, and recover objects from the beds of streams.<ref name=Hill-21>{{citation|title=The book of ingenious devices (Kitāb al-ḥiyal)|author=[[Banu Musa]] (authors), |translator=[[Donald Routledge Hill]] (translator)|publisher=[[Springer Science+Business Media|Springer]]|year=1979|isbn=90-277-0833-9|page=21}}</ref>
 
During the renaissance [[Leonardo da Vinci]] drew a design for a drag dredger.