We have a black square Ikea table right next to the sofa, where we place newspapers and remote controls. I was sitting on the sofa, and Sean comes from behind and drags the table away from the sofa. Immediately, I turned to him, stared at him with bulging eyes, and said loudly, "Stop!"
He grinned, paused for two seconds, and said, "Continental drift." What the...
Brian's on the mahjong table doing his Wordly Wise homework and asks, "How does continental drift happen?"
Sean goes, "Uhmm, it's the magma forcing the plates to move."
I said I didn't think that was true. Again, what do I know? This morning, I googled and found theories on Continental Drift and indeed magma does play a part. See this.
It was in 1915 that German geologist and meteorologist Alfred Wegener first proposed the theory of continental drift, which states that parts of the Earth's crust slowly drift atop a liquid core. Wegener published this theory in his book, On the Origin of Continents and Oceans, where he also proposed the existence of the supercontinent , and named it Pangaea, which means "all the land" in Greek.
When I told Sean that the original land mass was called Pangaea, he said the sofa was Laurasia and the black Ikea table was Gondwanaland.
Scientists believe Laurasia was made of the present day continents of North America (Greenland), Europe, and Asia while Gondwanaland was made of the present day continents of Antarctica, Australia, South America. The subcontinent of India was also part of Gondwanaland.