首页
Jump to navigation
Jump to search
维基共享资源 |
今日图片
A musician playing a tenor saxophone at a jazz festival in Uruguay. Adolphe Sax, inventor of the saxophone, was born on this day in 1814.
今日影音
The Kaitiaki, the Sensor, and the Scientist – a documentary video by New Zealand's Science for Technological Innovation's National Science Challenge about the development of a sensor for public water quality measurement and monitoring such as of river pollution.
参与
|
每月照片挑战
拍些照片并上传,参与我们每个月的专题挑战,获得灵感,并尝试新的主题!按此了解本挑战! 亮点
内容
|