For many years, we have been told that diamond is the hardest substance on earth.They MAY still be a "girl's best friend" (LoL). I have known for many years that this is untrue. Diamonds are actually (officially) number 7!! I say diamnods are number 8.
The actual fact is that the hardest substance on earth is graphene. I utilize graphene in many science functions - including a cooling catalyst. Graphene is actually as small as a single atom thick. It is a hexagonal carbon matrix and it is utilized in armor, lubrication and basically, to make things lighter and stronger.
However, today I discovered something even stronger than graphene.
The coffee bean. These fascinating freaks of nature are tasty and resilient. Every day when I make that first, fresh cup of heaven, I am astounded that a ground coffee bean survives minutes of boiling water and they do not melt or distinegrate. Every day the grinds go into the recycle jar.
How do they survive such heat!!!
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