·Well let's call them facts even though some may be a little less than factual. Perhaps they were thought to be so at one time. Factoids, people from history…
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Karlův most - Stavba pilíře a klenebního pole ve 14. století
In this informative animation we learn how the iconic Charles Bridge was constructed in 1357. The historic bridge crosses the Vltava (Moldau) river in Prague, Czech Republic and is 516 metres (1,693 ft) long and nearly 10 metres (33 ft) wide. It was built as a bow bridge with 16 arches shielded by ice guards.
10 Basic Types of Clouds and How to Recognize Them
Cirrocumulus clouds are small, white patches of clouds often arranged in rows that live at high altitudes and are made of ice crystals. Called "cloudlets," the individual cloud mounds of cirrocumulus are much smaller than that of altocumulus and stratocumulus and often look like grains.
Bizarre Vintage Photos Of Steam Engines After A Boiler Explosion From The Late 19th And Early 20th Centuries
There are many causes for boiler explosions such as poor water treatment causing scaling and over heating of the plates, low water level, a stuck safety valve, or even a furnace explosion that in turn, if severe enough, can cause a boiler explosion. Poor operator training resulting in neglect or oth