Search results
What is the theory of continental drift? Hear researcher Andy Wheeler speaking about an expedition to discover new hydrothermal vent field in the middle of the Atlantic Ocean. Watch Earth's continents move, from 650 million years ago to 250 million years in the future.
Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space. Earth rotates eastward, in prograde motion. As viewed from the northern polar star Polaris, Earth turns counterclockwise.
14 kwi 2009 · Tectonic plates. This animated video shows the movement of the tectonic plates that make up the Earth’s crust. Starting 600 million years ago, watch continents form and break apart as the plates move.
Discover how heat from Earth's core creates convection currents that cause crustal plates to shift. The land on Earth is constantly moving. Over millions of years, the continents broke apart from a single landmass called Pangea and moved to their present positions. Encyclopædia Britannica, Inc.
19 paź 2023 · Continental drift describes one of the earliest ways geologists thought continents moved over time. Today, the theory of continental drift has been replaced by the science of plate tectonics.
25 wrz 2009 · This animation shows the movement of the continents over the past 250 million years. It starts when dinosaurs roamed the earth. At that time, the continents were all together, forming one land mass called Pangaea.
27 gru 2012 · Polar Motion - Three Views: Polar motion describes the motion of the Earth's spin axis (shown in orange) with respect to the geographic north and south poles (shown in blue). Over time, the geographic poles appear to spin away from the spin axis when viewed from space and then back again.
