Goldage by Aisha Aljahim https://padlet.com/aishaaljahim/82kb0orfp6090zms en-us 2024-03-18 15:38:37 UTC 2024-03-21 12:52:26 UTC hello@padlet.com Abacus aishaaljahim https://padlet.com/aishaaljahim/82kb0orfp6090zms/wish/2923526321 During the Song dynasty in (960-1297 AD) in mathematics was one achievement in fact they built a tool to help them count and add and subtract this was called the Abacus.The instrument consisted of a rectangular wooden frame with parallel rods with beads attached and it had the beads with mostly helped a lot with the math. later on the Abacus become popular in other parts of asia.

]]> 2024-03-18 16:03:18 UTC https://padlet.com/aishaaljahim/82kb0orfp6090zms/wish/2923526321 Gunpowder aishaaljahim https://padlet.com/aishaaljahim/82kb0orfp6090zms/wish/2928540936 during the 3rd century by mixing

sulfur, saltpeter, and charcoal together they were able to create gunpowder during the song dynasty they discovered how the military can use it which was a help to increase the power of the military which was also good to use in the welfare. they also invented a gun barrel out of bamboo which later on the world copied and added more to the invention

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