The Mid-Atlantic Ridge – a section of which from Iceland appears in the puzzle – is the boundary between the North American and Eurasian tectonic plates, which are moving apart at about 2.5 cm per year. The extremely slow flow rate makes such plates among the Earth’s most viscous materials. Can you get the tiles in the right place at a slightly faster pace?
Find out more in our article “Geophysicist identifies a maximum practical viscosity” in which geophysicist Masaki Yoshida of Ritsumeikan University, Japan, claims to have found the upper limit for viscosity
To play, click or drag one or more tiles to move them into the empty space. Repeat until you have reconstructed the image.
Image courtesy: iStock/Muhammed Zeynel Ozturk
Fancy some more? Check out our puzzles page.
