4 ms·
Time-lapse video of it opening (~1:20): https://www.bbc.com/news/science-environment-57078657 https://www.bbc.com/news/science-environment-57078657
by thangalin 5y ago
Time-lapse video of it opening (~1:20):
https://www.bbc.com/news/science-environment-57078657 https://www.bbc.com/news/science-environment-57078657