A fitting complement to Universcale, JST Virtual Science Centre’s ‘Earth Guide’ asks “How much do we understand about the planet we call home”? It answers that question in eight different flash animated sections, ranging from our location in the Milky Way and reflections on our solar system to land/water distribution and our planetary light, water and carbon circulation systems. The journey through the site presents data ranging from strictly scientific to some bordering on the world of trivia. I didn’t know, for example, that Saturn’s density is so low that it would float in water; and I had forgotten that the first so called astronauts were those US pilots between 1959 and 1968 who flew the supersonic X-15 up to 100km above sea level. Another interesting little detail are ‘noctilucent clouds‘, which form between 85-90km above sea level; the phenomenon apparently is not fully understood yet except that we know they are made up of water vapour and methane. Visit the ‘Earth Guide’ by clicking on the image below.
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