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A black hole is a region of space having a gravitational field so intense that no matter or radiation can escape. In this episode, host Dianna Cowern leads a discussion on black holes and reviews Stephen Hawking's last paper on black holes. Part of the "Physics Girl" series.
(Source: DCMP)
Astronomer Steve Eikenberry at the University of Florida is on the hunt for black holes. With support from the National Science Foundation, he hopes to learn more about how particular black holes evolve, why there seem to be supermassive black holes at the center of most if not all galaxies, and what powers them.
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 black holes. Part of the Science Video Vocab Series.
What is a black hole? Hans Krimm, an observational astronomer at the National Science Foundation, answers this question. Part of the "Ask a Scientist" series.
Joe Pesce, a National Science Foundation astrophysicist, answers questions about black holes. Part of the "Ask a Scientist" series.
What happens when black holes collide? What is the speed of gravity? There are so many weird questions related to gravitational waves, and host Dianna Cowern interviews Dr. Michael Landry for a better understanding of gravitational waves. Part of the "Physics Girl" series.
Over a cup of coffee, astrophysicist Dan Evans chats about black holes, his current research in space sciences, and what he thinks the future holds. Part of the Scientists and Engineers On Sofas Series.
This program discusses the concept of the expanding universe. Calculations by astrophysicists show that the cosmos seems to be speeding up. The 50-billion galaxies thought to comprise our universe are rapidly moving farther apart. Scientists are working to understand the nature of space and the purpose of dark energy and dark matter related to the expanding universe.
Using crisp images and lifelike animations, this program introduces students to the intriguing realm of stars and galaxies. The main characteristics of galaxies and stars are discussed. Special attention is given to the features of stars, including size, temperature, and brightness. The life cycle of a star is also highlighted, as are the tools used by astronomers to study space. Additional concepts and terminology illustrated in the video include: universe, telescope, satellites, constellations, star color, spectrum, gas, light-year, and black hole.
Gravity rules the life cycle of stars. During the Red Giant dying stage in the life of an average size star, its outer layers are blown off in vast clouds of dust and gas called "nebulae" that contain hydrogen, oxygen, and nitrogen. Gravity crushes the remaining atoms into a remnant core called a white dwarf. The gravity of giant stars-10 to 20 times larger than average-will, at the end of their life in a supernova explosion, crush together even mutually repulsive protons and electrons, leaving a remnant rotating core of neutrons (i.e., a pulsar). Also explains how stars 20 to 100 times average size collapse into a core so dense that its gravity doesn't even allow light to escape (i.e., a black hole).
Scientists learn the basic properties of stars by analyzing the light they emit. Clarifies how brightness and luminosity are determined, discusses stellar parallax, and explains star color and characteristics. Focuses on yellow, blue, and red stars, white dwarfs, red giants, black holes, and supernovae.
Shares a broad look at stars--their formation, life, and types of death. Mentions red giants, blue stars, supernovas, red dwarfs, black holes, and others. Notes that astronomers study a star's light to learn about it. Projects what will happen to our star, the sun.
For more than a decade—in the most inhospitable place on Earth-- scientists have been building an observatory to search for a “ghost.” The IceCube Neutrino Observatory is a massive telescope embedded in the Antarctic ice near the South Pole. Its aim: to search for elusive subatomic particles called neutrinos that have made their way to earth from distant cosmic events like supernovas and black holes. Neutrino research is pushing the astrophysics envelope, and should provide answers to key questions about dark energy and dark matter.
On a nature reserve in California, researchers have discovered that one family of Acorn Woodpeckers is responsible for the tens of thousands of holes in trees. The woodpeckers store their nuts in the holes they bore. Segment of video from Wild Chronicles Series.
The garden gets many visitors from insects and animals. Gardeners work hard to keep destructive pests out of the garden, but they also welcome animals that are helpful to the plants in the garden. Part of the "Four Seasons in the Garden" series.
Black carbon is the fancy name for soot, and it is causing changes in the Arctic climate. It comes from the burning of fossil fuels. Studies suggest that black carbon is contributing to the acceleration of sea ice melting in the Arctic, and the loss of this ice would lead to more rapid warming and possibly irreversible climate change.
In each episode, viewers are given clues about a hidden animal inside a magic box. Can viewers use all the clues to correctly guess that the mystery animal in this episode is a black panther? Part of the "Zoobabu" series.
What weighs 6,000 pounds, has poor vision, and a horn growing on its nose? A rhinoceros, of course! Solio Ranch in Kenya is a private wildlife sanctuary for black and white rhinos. Explains the differences and similarities between these animals, and notes poachers want only the rhino's horn for Asian and Middle Eastern markets. Shocking statistics emphasize the urgency to protect this unique species. NOTE: One brief mating scene.
February is Black History Month. Marvie is learning about different African-American inventors, and she is inspired to invent something new. Part of the "Marvie" series.
Showing collections 1 to 6 of 6
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Biology related concepts
A collection containing 59 resources, curated by Benetech
