The Wisdom Academy - Global Vital Stats. Introduction to Earth Sciences I. Introduction to Earth Sciences I Topic 1 The Earth's Macroscopic Properties and What They Can Tell Us To get some very basic descriptions of the Earth we will start by describing some of the simplest of all the Earth's properties - how big, how heavy, how hot, how strong - and how they were deduced.
The other world visitor would be remiss if he he did not at least provide a description of those properties. The Scale of the Universe. Earth is not revolving around the Sun. The Sagan Series. Orrery_2011_bce.swf (application/x-shockwave-flash-Objekt)
The-Observable-Universe.jpg (JPEG-Grafik, 3850 × 1925 Pixel) Solar System Scope.