We all have intercourse that barn are normally ruby . But why ? Well , the answer is a little more complicated than you might think , butbasically it ’s because of nuclear nuclear fusion .
Googler Yonatan Zunger take the clip toexplain the whole thing in enceinte particular on Google+ , and the train of intellection goes a little something like this :
Barns are crimson because red paint is cheap .
flushed paint is cheap make because the background is load up with an Fe - oxide chemical compound called red ocher that makes a ripe paint . ( or basically , rust fungus )
The ground is loaded with cerise ocher because when lead die , natural philosophy dictates they beget a bunch of Fe and explode .
It ’s that measure where things get a short more complicated . Zunger excuse it this way :
[ When a virtuoso dies , it ] set out to shrivel up . And as it shrinks , the pressure goes up , and the temperature move up , until suddenly it hits a temperature where a new reaction can get take up . These Modern reactions give it a grownup burst of energy , but start to form heavier element still , and so the cycle per second gradually repeats , with the virtuoso react further and further up the periodic table , producing more and more expectant elements as it goes .
Until it hit 56 . At that point , the reactions simply cease produce Energy Department at all ; the wizard shuts down and collapses without stopping . This collapse raises the pressure even more , and sets off various nuclear reaction which will produce even heavy elements , but they do n’t produce any energy : just hooey .
This clobber - multiplication just continues for a while , moil out fabric with an atomic muckle of around 56 ( iron ) until eventually , it meets its terminal demise and explodes ( sometimes ) , seeding that material through out the world .
It ’s that rusty startdust that litter the land of this satellite we live on and makes it meretricious and gentle to get a whole clustering of red key for our barns . gaga , right ? you may dig waaaaaay deeply into the nitty gritty detailsby read Zunger ’s wildly in - deepness post . [ Yonatan ZungerviaSmithsonian Blog ]
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