日食の仕組み、安全な日食観察方法、皆既日食や金環日食の一覧表など。日食のことなら「日食ナビ」。2012年金環日食も。
PixInsight - Advanced Image Processing. PixInsight is a modular, open-architecture, portable image processing platform available for FreeBSD, Linux, Mac OS X and Windows.
「URLJP.com」は、日本の人気...
Community site for 3D printer users. Discover thousands of great printable 3D models, download them for free and read interesting articles about 3D printing.
Next Spaceflight keeps you up to date with the latest in spaceflight with rocket launch schedules from SpaceX, NASA, ULA, ROSCOSMOS, and more.
