《字裡行間覓數跡》：無規矩不成方圓，伏羲竟是中國古數學創始人？

精選書摘 2025-10-29 20:00:00 CST

劉徽注解《九章算術》時，開宗明義就說：「昔在庖犧氏始畫八卦，以通神明之德，以類萬物之情，作九九之術，以合六爻之變。」劉徽的意思就是說：「九九之術」或中國古算正是由伏羲所創造而誕生，在壁畫上，他與女媧各執規矩，當然充滿了象徵意義。
https://www.thenewslens.com/article/260156
#女媧 #字裡行間覓數跡 #規矩 #中國古算 #劉徽 #書摘導購 #數學史 #科學 #九章算術 #周髀算經 #伏羲 #神話 #商高 #洪萬生

8 August 2025 - Daily Drawing Day 220
#20252025Challenge
Had dinner in a pub called the Wrekin Giant, so thought I'd draw that local legend. A Welsh giant called Gwendol went to destroy Shrewsbury with a giant spadeful of earth. In Wellington he asked a cobbler directions, but the cobbler showed him all of his damaged shoes saying that Shrewsbury was so far away he broke all the shoes coming from there. The giant then just dumped the earth where it was, giving up, and that earth became The Wrekin hill.
Or something like that.

#WrekinGiant #Wrekin #Giant #Folklore #リーキンの巨人 #リーキン #巨人 #民俗 #TheWrekin #myth #legend #Wellington #Shrewsbury #Giantess #Miniguy #RiverSevern #River #Anna #Shropshire #Telford #ザ・リーキン #伝承 #神話 #ウェリントン #シュルーズベリー #大女 #セヴァーン川 #アナ #シュロップシャー #テルフォード

Watch the time lapse video of this drawing on YouTube Shorts: https://youtube.com/shorts/Mbt3J7E56Zw

See the latest at https://darlosworld.bsky.social

The 2025 20-25 Challenge.

This year let’s get better at something by finding a little practice time most days, in my case drawing. - Do your activity for at least 25 minutes, at least 25 days per month.
- Use the hashtag #20252025Challenge on social media etc to track your progress
- Also use the hashtag to cheer on others.

That’s about it!

Have fun with your activities, whatever they may be!

Drawing, programming, dancing, cooking, make up, reading, languages, gardening, mastering high fives, sewing, astrophysics, vcr clock setting ...

#challengeyourself #challenge #Drawing #drawings #illustration #newyearsresolution #25minutes #xppen #clipstudiopaint #dailydrawing #イラスト #クリップスタジオ #絵 #絵画 #絵描きさんと繋がりたい #drawingoftheday #一日一絵 #art #digitalart #oc #一次創作

Sun Wukong (#孙悟空) dominates #Shenzhen Talent #Park (深圳人才公园) as much as the human buildings fading away behind him or the human photographer kneeling down before him.

#mythology #神話 #深圳 #statue #city #harbour