It's amazing that something only an atom thick can be an impenetrable barrier. You can have gas on one side and vacuum or liquid on the other and with a wall only one atom thick nothing would go through it.
Shanghai set out to take over from Hong Kong and I think it's done that. It's got the most amazing futuristic skyline which rivals and even betters Tokyo.
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Anger is a wind which blows out the lamp of the mind.
