Chevedden 1995, p. 2 "Historians had previously assumed that the diffusion of trebuchets westward from China occurred too late to affect the initial phase of the Islamic conquests, from 624 to 656. Recent work by one of us (Chevedden), however, shows that trebuchets reached the eastern Mediterranean by the late 500s, were known in Arabia and were used with great effect by Islamic armies." Chevedden, Paul E.; et al. (July 1995). "The Trebuchet"(PDF). Scientific American. 273 (1): 66–71. Bibcode:1995SciAm.273a..66C. doi:10.1038/scientificamerican0795-66. Archived from the original(PDF) on 2012-01-11.
Chevedden 1995, p. 2 "Historians had previously assumed that the diffusion of trebuchets westward from China occurred too late to affect the initial phase of the Islamic conquests, from 624 to 656. Recent work by one of us (Chevedden), however, shows that trebuchets reached the eastern Mediterranean by the late 500s, were known in Arabia and were used with great effect by Islamic armies." Chevedden, Paul E.; et al. (July 1995). "The Trebuchet"(PDF). Scientific American. 273 (1): 66–71. Bibcode:1995SciAm.273a..66C. doi:10.1038/scientificamerican0795-66. Archived from the original(PDF) on 2012-01-11.
Chevedden 1995, p. 2 "Historians had previously assumed that the diffusion of trebuchets westward from China occurred too late to affect the initial phase of the Islamic conquests, from 624 to 656. Recent work by one of us (Chevedden), however, shows that trebuchets reached the eastern Mediterranean by the late 500s, were known in Arabia and were used with great effect by Islamic armies." Chevedden, Paul E.; et al. (July 1995). "The Trebuchet"(PDF). Scientific American. 273 (1): 66–71. Bibcode:1995SciAm.273a..66C. doi:10.1038/scientificamerican0795-66. Archived from the original(PDF) on 2012-01-11.
Chevedden 1995, p. 2 "Historians had previously assumed that the diffusion of trebuchets westward from China occurred too late to affect the initial phase of the Islamic conquests, from 624 to 656. Recent work by one of us (Chevedden), however, shows that trebuchets reached the eastern Mediterranean by the late 500s, were known in Arabia and were used with great effect by Islamic armies." Chevedden, Paul E.; et al. (July 1995). "The Trebuchet"(PDF). Scientific American. 273 (1): 66–71. Bibcode:1995SciAm.273a..66C. doi:10.1038/scientificamerican0795-66. Archived from the original(PDF) on 2012-01-11.
Punkin Chunkin 2010- Tired Iron (YouTube). Hancock, NH: The Science Channel. November 24, 2010. Event occurs at 1:17. Archived from the original(YouTube) on 2013-12-11. Retrieved March 7, 2015.
"Wright.edu". Engineering.wright.edu. Archived from the original on 2010-07-18. Retrieved 2010-09-12.
youtube.com
Punkin Chunkin 2010- Tired Iron (YouTube). Hancock, NH: The Science Channel. November 24, 2010. Event occurs at 1:17. Archived from the original(YouTube) on 2013-12-11. Retrieved March 7, 2015.
