Cannon By:Miguel Sanchez by Miguel Sanchez https://padlet.com/0506469/fwn0ojoy67qo Made with a stroke of good luck en-us 2018-04-16 21:01:18 UTC 2026-02-14 20:02:36 UTC hello@padlet.com What does it look like? What is it made of? 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/252767331 2018-04-17 20:15:06 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/252767331 The Cannon 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/253610758 2018-04-19 19:33:53 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/253610758 Why was it invented/how did it make ancient people’s lives easier? 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/253630974 "The history of the cannon spans several hundred years. The cannon was invented in China as early as the 12th century and traces its development from the fire lance, the ancestor of cannons and firearms. ... English cannon were first used during the Hundred Years' War, at the Battle of Crécy, in 1346." https://en.wikipedia.org/wiki/History_of_cannon]]> 2018-04-19 20:38:40 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/253630974 How does the invention work? 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/253903168 "The powder is ignited by a timed fuse, which lights when the gun is fired. Shells are generally used to set fires. Rifled cannon fire cylidrical, bullet-shaped projectiles. ... The rifling spins the projectile as it is fired, improving accuracy and range."
https://www.nps.gov/fosu/planyourvisit/upload/how_does_a_cannon_work.pdf]]> 2018-04-20 16:28:17 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/253903168 How was it made? 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/253903764 "Cannon in general have the form of a truncated cone with an internal cylindrical bore for holding an explosive charge and a projectile. ... Field artillery cannon in Europe and the Americas were initially made most often of bronze, though later forms wereconstructed of cast iron and eventually steel."
https://en.wikipedia.org/wiki/Cannon]]> 2018-04-20 16:29:29 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/253903764 How has the invention changed over time? 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/256156213
British engineer Sir William Armstrong developed the world’s first practical breech-loading cannon, manufactured in Britain from 1855. The Armstrong gun was constructed from wrought iron, built by shrinking successive layers of metal on top of each other. The resultant tube was stronger and more reliable than the conventional cast iron, and harder than bronze. It made rifling more practical. Armstrong cannon improved range and accuracy of rifled artillery.
http://idrw.org/evolution-of-howitzers-and-cannons-a-brief-history/]]> 2018-04-27 19:56:23 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/256156213 Make a claim stating how this invention changed the world for ancient people? Support this with evidence cited. 0506469 https://padlet.com/0506469/fwn0ojoy67qo/wish/256156606 Have u ever wondered if the cannon was useful back in the ancient life??  Well the cannon was useful back in the ancient life. ]]> 2018-04-27 19:58:15 UTC https://padlet.com/0506469/fwn0ojoy67qo/wish/256156606