In the programme, which airs on BBC 2 on Sunday, Prof Stewart examines the evidence for a long-lost landmass called Pangaea - from which all modern continents originate.
The cooling of the Eurasian landmass in winter leads to the development of an intense high-pressure cell over the country's interior; mean January pressures range above 1,040 millibars along the southern boundary of Siberia, from which a ridge of high pressure runs westward along Russia's borders with Kazakhstan and Ukraine.
Add more crystals to more water, and up from the seabed rises a fresh landmass, on which — if you are Luthor — you plan to build a whole new continent of your own devising.
Her pilgrimage to Heimaey in 2003 initiated the ongoing project Ruins in Reverse (Nomadic Landmass), in which Halperin set out on a journey of discovery.
Currently, a third of the world's landmass is forested, which may seem substantial but represents a stark historical decline.
India's landmass, which forms the northwestern portion of the Indian-Australian Plate, began to drift slowly northward toward the much larger Eurasian Plate several hundred million years ago (after the former broke away from the ancient southern-hemispheric supercontinent known as Gondwana, or Gondwanaland).
Wegener speculated — correctly, as it turned out — that the surrounding continents had originally been welded together in a single landmass, which he called Pangea.
Exhibits are full of fascinating trivia, including remnants from a box of Grape Nuts Cereal that MacMillan loved, and items from the Crocker Land Expedition - a failed attempt to find a new arctic landmass, which was proven to be merely an optical illusion.
As the former landmass, which included the Seychelles, split up and drifted apart, Mauritia split off on its own.
