App Installer (current) Mark Sainsbury (philosopher) Call option Ian Stewart (mathematician) Isle of Man Four Garrisons of Anxi Theory of equations The No-Nonsense Guide to Globalization Mesopredator release hypothesis C/2018 C2 (Lemmon) Silicon Graphics International Coded wire tag Colliding beam fusion Navi (The Legend of Zelda) Titanium dioxide First Nations Experience Gridcentric Gadubanud Pick's theorem