6:07prefabricated constructionDemo
30-story building built in 15 days! Construction time lapse of J57, Changsha, China.
AI+R
1 HN recommender
6:07prefabricated constructionDemo
AI+R
1 HN recommender
Videos shared and discussed on Hacker News, with original community evidence and topic labels.
Indie Picks is organized from video metadata and uploader descriptions; it is not a full-video editorial review. HN Library retains community discussions. Sources and data notes