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Part of "The Living Oceans" series. Captures the lives of sea stars that inhabit sea star gardens on the ocean bottom. Slow-motion photography reveals that predatory sea stars are actually social creatures that respond to one another's touch and prefer to hunt together. Illustrates animal defenses, such as camouflage in the octopus, and shows of aggression in the sarcastic fringehead.
(Source: DCMP)
Ancient civilizations such as the Babylonians, the Chinese and the Greeks studied the stars without the benefit of telescopes and yet identified patterns of stars that are still used today. These early scientists collected the first data in the science of astronomy. This program provides students with a summary of the history of astronomy and highlights many important astronomers.
This creature was found 1,800 feet deep in the ocean. It’s called a basket star. This extraordinary invertebrate has a mass of twisting and turning arms that can measure a meter long. Each branch has tiny sharp hooks allowing the creature to capture prey, and it feasts mainly on zooplankton. Basket stars are able to grow their limbs back if they are broken or chopped off by predators. Part of the "Creatures of the Deep" series.
In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons and/or protons). The difference in mass between the products and reactants is manifested as the release of large amounts of energy. This difference in mass arises due to the difference in atomic "binding energy" between the atomic nuclei before and after the reaction. Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.
(Source: APH)
Gravity is the most powerful and exacting force in the universe. It binds us together, its reach hangs stars in the sky and its grip crushes light. Without gravity, stars, comets, moons, nebulae, and even the Earth itself would not exist. Explore how science and humanity discovered, overcame, and utilized gravity. Learn what it takes to propel objects into the heavens, to ride a wave, or to ski down a slope. Take a front row seat as an astronaut subjects himself to the weightless wonders of the specially modified aircraft used to train astronauts known as the "Vomit Comet."
Gabriela, Manuel and Leonardo are three friends who accidentally start a rocket that takes them to space. Their journey through space takes them to different planets and strange worlds. Throughout their journey, they have the help of Maqui, an on-board computer. Maqui helps them learn about the universe. The kids examine old maps to be able to find where they are, but the maps are useless. Then Maqui suggests that they should study the constellations and explains to them that ancient civilizations used the sky and the stars as guides. Soon they arrive to a planet where the inhabitants also look for shapes formed by stars.
Gabriela, Manuel and Leonardo are three friends who accidentally start a rocket that takes them to space. Their journey through space takes them to different planets and strange worlds. Throughout their journey, they have the help of Maqui, an on-board computer. Maqui helps them learn about the universe. The kids arrive at a planet where only two elderly people are left. The rest of the population left because their sun is dying. Maqui explains to them that the sun is a star, and she teaches the life cycle of stars. The kids rescue the elderly pair and reunite them with the rest of their planet’s inhabitants. During this adventure, they learn the difference between planets and stars.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, it is night time and Moko is watching the shooting stars from Totemie's village and is remembering how he once thought that a lady blew the stars in the sky from the embers of her bonfire. And suddenly, an immense star, a huge ball of fire, appears from the sky and falls to the depths of the forest. Totemie and Moko take off to see where the meteorite has landed and discover that a huge flaming rock has made a hole the size of a volcano's crater in the ground and is setting fire to the forest around it. Totemie is scared that the sky is angry and Moko, who remembers Mei Li begins to dance like she did while playing Alarick's flute. It begins to rain and slowly the flames die down. Moko thinks that the clouds must have seen him dance and heard his flute and come to save his new friend's land.
In this episode, Dr. Varoujan Gorjian discusses what happens when galaxies collide. Usually new stars form due to the impact of gases on one another. Part of the "Ask an Astronomer" series.
Dr. Carolyn Brinkworth addresses a famous science fiction scenario in this episode. She discusses the three requirements for planets to form around binary stars. Part of the "Ask an Astronomer" series.
How did the universe form? Where did it come from? Where does Earth fit into the equation? This segment focuses on Earth's place in the universe. Other topics covered include the solar system, gravity, planetary experience, and stars. Part of the "Earth Science" series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term physics. Part of the Science Video Vocab Series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term galaxy. Part of the Science Video Vocab Series.
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.
Focuses on comets, those mostly unpredictable, wandering objects in the solar system. Uses time-lapse images while explaining a comet's tail and the meteors, or "falling stars," associated with it. Mentions Halley's and Hale-Bopp comets and international efforts to see these bodies more closely. Contains actual pictures of comets photographed by space probes.
Using animation, this video follows the life and career of Faith Ringgold. Viewers catch a glimpse of her childhood in Harlem and her experiences through the cultural upheavals of the 1970s. Today, she is a respected contemporary artist and author. Part of Getting To Know Artists Series.
A Scientist from NASA explains how to easily build an inexpensive planetarium to introduce students to star patterns. The activity also allows students to create their own constellations. Part of the “DIY Space Classroom Activities” series.
How far is a star or a galaxy? Scaling and measuring the cosmos is a complex problem. Scientists are integrating mathematical applications and scientific technology to create measurement standards. Distances are so vast they are described in light years, and nearby stars are measured by trigonometry. Farther out, astronomers use standard candle measurement for deep space exploration.
The Big Bang theory is currently the most popular scientific theory for the origin of the universe. It describes how the universe emerged from an enormously dense and hot state about 13.7 billion years ago and how the universe is still expanding from that point. This theory helps scientists explain the formation of all the galaxies, stars, and planets.
