Paleontologists now have evidence that dinosaurs lived on all of the continents. At the beginning of the age of dinosaurs (during the Triassic Period, about 230 million years ago) the continents…
FRACTURED CRUST PLATE BOUNDARIES SUPERCONTINENT SEA-FLOOR SPREADING FIND OUT MORE
Scientists believe that the Earth’s outer crust is made up of about huge fragments, called tectonic…
(Encyclopedia)
CE5
Plate tectonics: Map of the world showing major plates and plate boundaries
CE5
Plate tectonics: Schematic model of the oceanic crust, showing the three types of plate…
Triassic habitats (250–200 million years ago)Jurassic habitats (200–145 mya)Cretaceous habitats (145–65 mya)Not all the dinosaurs lived at the same time. Nor did they all live in the same part of…
(Encyclopedia) Freyssinet, EugèneFreyssinet, Eugèneözhĕnˈ frāsēnāˈ [key], 1879–1962, French engineer. Freyssinet was noted as a designer of bridges and industrial buildings. He was the inventor of…
(Encyclopedia) Americana, term used to describe material printed in or about the Americas, or written by Americans; usually restricted to the formative period in the history of the two continents.…
When you think about the largest countries in the world, which countries come to mind? The answer would probably depend on whether you’re talking about the largest size in total area or the most…
WHO OWNS ANTARCTICA? WHAT DO SCIENTISTS STUDY IN ANTARCTICA? FACTFILE: ANTARCTICAARCTICFIND OUT MOREThe freezing, inhospitable continent of Antarctica was the last place on Earth to be explored.…
(Encyclopedia) Anville, Jean Baptiste Bourguignon d'Anville, Jean Baptiste Bourguignon d'zhäN bätēstˈ b&oomacr;rgēnyôNˈ däNvēlˈ [key], 1697–1782, French geographer and cartographer. His maps of…
