Mind Blowing Breakthroughs Science show - Season 1 Episode 16 Jang Yeong-sil – History And Principles Of Time Measurement, Part 2
0.0048 minutes
The Baron finds out how a mindblowing invention has saved entire cities and people’s lives. There's a flood and the Baron’s theatre is submerged under water. Jang Yeong-sil to the rescue! He has invented a gauge to measure the rise of rivers and rainfall amounts. Now he saves the day for the Baron!