Volunteer archivist Ian Gregory poses another meditative inquiry:
I have, whilst working at Buxton Museum, catalogued a map of a continent that no longer exists. The geologists call it Gondwana or Gondwanaland, and most of the present day southern landmasses were once part of it. It broke up gradually but the process began about 200 million years ago.
Seeing this map on a plate for a slide reminded me of how hard it can be for new ideas to be accepted. The theory of continental drift, of which Gondwanaland is a crucial part, was first proposed in 1912 by Alfred Wegener but few people took it seriously. In 1957, Marie Tharp and Bruce Heezen published a map of the sea floor of the Atlantic Ocean and it showed the sea floor gradually spreading out from underwater volcanoes in the middle of said ocean. For the first time, scientists knew of a mechanism that could power continental drift and it is known as plate tectonics.
Not everyone who rejected Wegener’s theory was a mindless conservative; since he hadn’t explained what could power continental drift. Tharp and Heezen’s discovery came after Wegener’s death. Still, when thinking about their stories, I wonder what other ideas that are currently out of favour might be one day accepted as facts?