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In this episode, scientist Steve Lord explains the relationship between gravity and the shape of galaxies. Gravitational forces from the galaxy's core causes all the stars to rotate. This rotation causes spiral waves. Part of the "Ask an Astronomer" series.
(Source: DCMP)
A 9.0 magnitude earthquake rocks the ocean floor about eighty miles off the coast of Japan. This disturbance causes a transfer of energy from the seafloor to the ocean, which generated a series of ocean waves known as a tsunami. Within 20 minutes, the waves struck the Japanese coastline, and other nations go on high alert as the tsunami spreads throughout the Pacific Ocean. Part of the "Danger Zone" series.
Through descriptions of actual volcanic and earthquake occurrences, students will discover how these dynamic forces affect the world. This video discusses the nature and causes of earthquakes and volcanoes. Other topics covered include molten rock, magma, lava, cinder cone, shield volcano, composite volcano, caldera, Ring of Fire, seismic waves, seismograph, and Richter scale.
What causes a material to be magnetic? Learn the properties of magnets and how magnetic fields are produced.
Describes human activities' effects on earth. Examines how humans, industrialization, and technologies impact the environment, water cycle, and land use. Encourages better planning and management of resources.
What causes day and night? This program uses animations to help answer this often difficult-to-teach concept. The position of Earth and the sun, as well as the process of rotation are clearly illustrated.
Every year, a million babies are born worldwide with hereditary diseases. Physicians once had little to offer. Now a new breed of gene doctors is on the case. They are devising treatments that target the root causes of these diseases. Please note this title contains potentially offensive language.
Pinky and Petunia discuss light and electron microscopes. They also offer helpful hints on how to use a light microscope. Part of "The Amoeba Sisters" series.
Crisp, colorful video footage illustrates the beautiful and fascinating features of the fall season. Also takes a brief look into what causes this season. Concepts and terminology: autumn, foliage, seed dispersal, migration, hibernation, and harvest.
Photographers and scientists try to explain their fascination with volcanoes and earthquakes. Focuses not on the geological causes, but on how and why these phenomena are photographed and studied. Uses actual footage and closeups for impact. James Earl Jones narrates.
Stuart Rowan, a professor at Case Western Reserve University, has created polymers that are able to self-heal when heat is applied using a special light. Part of the Fast Draw Series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. For this particular video, students will focus on the geological causes of a tsunami and their devastating effects on land and people. Part of the Science Video Vocab Series.
Features a veterinarian who provides lifesaving information by giving a thorough step-by-step demonstration of CPR on dogs. Includes definition of cardiopulmonary arrest, assessment of the dog, preparing the dog for CPR, and causes of cardiac arrest.
Egbert finds his picnic ruined. Who did it? They find some hairs at the crime scene, which they hope will lead them to the culprit. This episode helps students understand the concepts of base rates and probable causes. Part of the "Yana & Egbert" series.
Physical activity and quality sleep are both vital for healthy bodies, as well as healthy brains. Viewers learn the relationship between activity, boredom, and sleep and how each plays a role in healthy development of children. Part of "The Brain" series.
What causes earth's weather? Explains that the sun is the primary source of our changing weather phenomena as it warms the atmosphere and water. Covers weather forecasting, high and low pressure fronts, cloud formations, and the water cycle. Presents weather conditions for thunderstorms, tornadoes, and hurricanes.
Digit’s Digi-Fizz is an overnight hit in Perfectamundo, but the toy causes pollution. The team must find a solution to the unexpected problem. Part of the "Cyberchase" series.
Yana and Egbert are trying to guess what is in a mysterious box. But Izzie the Ostrich points out a potential experiment, which causes Yana and Egbert to abandon their wild guesses. This episode discusses experiments and hypothesis. Part of the "Yana & Egbert" series.
What causes emotional responses when watching movies? It's all in the brain. Deeply emotional cinematic experiences are a product of mirror neurons. In this segment, host Trace Dominguez discusses the relationship between mirror neurons, empathy, and memory. Part of the "Uno Dos of Trace" series.
The Standard Deviants explore volcanoes and what causes them to erupt. They also discuss lava, pyroclastic materials, and the Ring of Fire. Then, it's time for a discussion on weathering. Part of "The Rockin' World of Geology" series.
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