頭版
Jump to navigation
Jump to search
維基同享 |
是日靚相
Common crab spider (Xysticus cristatus) female with prey Carniolan honey bee (Apis melifera carnica), a subspecies of the western honey bee. Near Bled, Slovenia.
是日影音
The YouTuber of "How To Make Everything" reconstructs the aeolipile "to see if this very first steam engine could be put to work". "Could the industrial revolution [have] started 2000 years earlier?".
Roman architect and engineer Vitruvius described the aeolipile for an experiment to demonstrate the nature of atmospheric air movements (wind) in his Ten Books on Architecture (30–20 BCE). |
每月攝影挑戰賽
即刻影相並上載,參加我哋每個月嘅主題挑戰賽,試影新嘢,互相切磋!欲知詳情,請㩒呢度! Highlights
內容
主題 |
Wikimedia Commons is part of the non-profit, multilingual, free-content Wikimedia family.