This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of
Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
This article is within the scope of WikiProject Astronomy, which collaborates on articles related to
Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
This article is within the scope of WikiProject Climate change, a collaborative effort to improve the coverage of
Climate change on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.Climate changeWikipedia:WikiProject Climate changeTemplate:WikiProject Climate changeClimate change articles
This article is within the scope of WikiProject Czech Republic, a collaborative effort to improve the coverage of the
Czech Republic on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.Czech RepublicWikipedia:WikiProject Czech RepublicTemplate:WikiProject Czech RepublicCzech Republic articles