22 resources and 2 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 1 to 20 of 22
Select a resource below to get more information and link to download this resource.
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)
Depicts the different stages in the birth and death of stars, including the sun. There are 100 billion stars in the Milky Way galaxy alone, and there are 100 billion galaxies. Provides an overview of radiated energy, which is in all wavelengths; nuclear fusion; and fierce magnetic fields, which create all solar events. Explains that the length of a star's life and how it dies are determined by gravity and how gravity is proportional to size.
(Source: DCMP)
Explains the science behind the workings of a nuclear power station. The basic version explores what fission is; the role of cooling water in nuclear reactors; the nuclear fuel cycle on mining, milling, enrichment, fabrication, and spent fuel on storage and reprocessing; and other uses of nuclear energy, including "non-power" uses. The advanced version expands on this information with a specific example of a fission reaction; the use of water to vary reactor power; different methods of mining uranium; a detailed discussion of enrichment, including structure and properties of uranium hexafluoride; and two methods of enrichment: centrifuging and gas diffusion.
Sarah Don, a graduate student in Nuclear Science and Engineering at MIT, answers the question, "What does the future of nuclear science look like?" Part of the "#askMIT" series.
The rate of a chemical reaction is affected by a number of factors, including temperature and the concentration of reactants at the beginning of the reaction. While the chemical equation may show reactants turning into products as a straightforward process, it is actually involved and precise. How exactly do reactants turn into products? Sometimes, the answer is as simple as two atoms bumping into each other and forming a bond. Most of the time, however, the process is much more complex. Controlling the rate of reactions has implications for a variety of applications, including drug design and corrosion prevention. Part of the series Chemistry: Challenges And Solutions.
Details the anatomy of the honeybee. Also details the roles of drones, worker bees, the queen, and the mystery of the honeybees' dance. Follows the Colony Collapse Disorder (CCD) problem to a variety of laboratories, investigating the pathology of bee diseases that are wiping out entire colonies and affecting our food supply. Concludes with the discovery that a viral infection is the most likely cause of CCD but warns that bees are subject to many other stresses that can upset the ecological balance and wipe out our supplies of fruits and vegetables.
Examines the nuclear disaster that followed an earthquake and tsunami that rocked Japan on March 11, 2011. That day, Japan was hit with the fifth strongest earthquake ever recorded. The earthquake was followed by a tsunami which caused a nuclear disaster at Fukushima Nuclear Power Plant. This documentary details the chain of errors and oversights that led to the largest nuclear accident since Chernobyl.
Energy comes in many different forms. Real-life examples differentiate between potential and kinetic energy and demonstrate the different forms of energy. This video highlights mechanical, thermal, chemical, electromagnetic, sound, and nuclear energy.
Our Sun is a nuclear reactor converting hydrogen to helium continuously. X-ray and telescopic images reveal the Sun's photosphere and chromosphere, sun spots, solar flares and winds, and prominences. Describes each and its impact on Earth. Covers some of the Sun's mysteries, and projects what will eventually happen to our closest star.
Seaborgium is a synthetic chemical element with the symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg.
(Source: Library Lyna)
Moscovium is a synthetic chemical element with the symbol Mc and atomic number 115. It was first synthesized in 2003 by a joint team of Russian and American scientists at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia.
Oganesson is a synthetic chemical element with the symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists.
All living organisms on Earth contain cells which are the basic structural unit for all organisms. Cells are small compartments that hold the biological equipment necessary to keep an organism alive. They also have specific parts to make the cell work.
This video describes the five main forms of energy and how to differentiate between them. Students will learn how to calculate potential and kinetic energy. Everyday examples illustrate the impact of energy on daily life. Other topics covered include chemical energy, nuclear energy, electromagnetic energy, heat energy, mechanical energy, and the law of conservation of energy.
Radioactivity is all around us and comes from a variety of sources. There are three types of radiation, and experiments show the differences in the penetrating power of each one. A major use of radioactivity is in nuclear medicine. Discusses the half-life of radiation and how to calculate it.
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Topics covered include precipitation reactions, oxidation-reduction reactions, kinetics, equilibrium, and nuclear reactions. Part of the "Chemistry" series.
What are nuclear actin filaments? They are the tiniest first responders that help cells repair damage. Other features in this episode include interventions to help boost coral's resilience to bleaching and chips that help miniature drones navigate. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
What is the best way to power the planet? Travel the globe with scholar Johan Norberg, from Morocco to Sweden and throughout the United States, as he explores the pros and cons of the eight main energy sources available to us: coal, oil, natural gas, nuclear, hydro, biomass, wind, and solar.
The world's nuclear power plants have generated an estimated 300,000 tons of high-level radioactive waste that must be safely stored for 100,000 years or more. Every year, they generate another 12,000 metric tons of high-level waste. Takes viewers deep into the Onkalo facility as it is being constructed and asks Onkalo representatives, scientists, theologians and others to address fundamental but challenging questions.
Atterwasch is a small village in Germany and is slated for demolition. It's a casualty of Germany's Energiewende, the most ambitious transformation of a country's energy sector ever attempted. Germany's plan to shut down all their nuclear reactors has had other unintended consequences as well, most notably increased burning of brown coal, the direct cause of Atterwasch's plight. Scholar Johan Norberg explores the Energiewende, along with other world energy issues like ethanol and fracking, both of which have also had consequences not anticipated.
Showing collections 1 to 2 of 2
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
