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In 1898, two African lions began attacking railway workers in Tsavo, Kenya. First reports estimated that 135 people fell victim to these "man-eaters," but further research published in 2009 lessened that number to 35 individuals. Over the years, different theories as to what motivated these attacks have varied, and recently host Emily Graslie got to talk with two experts who are working towards finding an answer. Part of "The Brain Scoop" series.
(Source: DCMP)
Drey, a young African American student, faces a hard choice about resuming his drug use. In a strange encounter, he finds himself back in time with renowned scientist George Washington Carver, who also faces a difficult choice. Doing what is right, no matter the cost, is an important lesson for both Carver and Drey. Quiz after the video credits.
Manganese is a chemical element with the symbol Mn and atomic number 25. It is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.
(Source: Library Lyna)
There are three manatee species worldwide: West Indian, West African, and Amazonian. These large creatures average 10 feet long and 1,200 pounds; however, they are incredibly graceful aquatic animals. They also play an important role in maintaining a healthy ecosystem, but they face two major threats: loss of habitat and collisions with boats and ships. Part of the "Endangered Ocean" series.
The manta ray is the largest ray in the ocean. They have have cephalic lobes, or flaps, which help the manta funnel food into its mouth. These animals can even leap out of the water. Now that's one weird animal. Part of the "Weird Animal" series.
Part of the "Green Careers" series. Presents an overview of job opportunities in water management, such as flood control, reservoir management, levee design and repair, designing and operating dams and sewer systems, river management and restoration, monitoring fish populations, protecting habitats and endangered species, maintaining natural resources, water conservation, irrigation, landscape design, and more. Jobs profiled include the following: civil engineer, water resource manager, water conservation specialist, and landscaper.
Scientist with the United States Geological Survey (USGS) conduct health check-ups on a group of manatees. The scientists conduct their research at the Crystal River National Wildlife Refuge to help further their population research on marine life in the Three Sisters Spring.
University of Rochester electrical engineer Mark Bocko has combined his passion for music with his passion for engineering, devising a way to digitally compress music files. Bocko’s team of engineers and musicians at Rochester’s Eastman School of Music are also helping uncover some extraordinarily precise details about just how music is made. With support from the National Science Foundation, they have built a computer model of the clarinet, entirely from real world acoustical measurements taken from human musicians. Measuring such things as how hard the musician is blowing into the instrument and the pressure the musician applies to the reed, they have modeled the way music is made.
This series explores the relationship between humans and the sea and focuses on the life of the sea turtle. Turtles worldwide face serious threats of extinction; however, conservation efforts are trying to preserve this species. Part of the "Turtle World" series.
After Charles Darwin first visited the island archipelago of Galapagos in 1839, it took him another twenty years to decipher that the scene he'd witnessed was the most perfectly preserved biodiversity on the planet. His theory of evolution, published 150 years ago, pulled back the curtain on a debate that had been simmering for years, and still percolates. Today Darwin would be surprised by the tourist mecca Galapagos has become--200,000 visitors a year, 40,000 permanent residents. The impact on the most unique collection of endemic wildlife in the world has been heavy. Too many people are bringing too many of their ways (and invasive species) from the outside world that are threatening the future of this one-of-a-kind place. What would Darwin think of how Galapagos has evolved in the twenty-first century?
Norvin is a good actor and a terrific swimmer, but he has a face that looks like a shark. He uses his acting talents and a fake fin to scare swimmers out of Caramel Cove so he can have it all to himself. He is so convincing, he eventually finds himself the love object of a female shark. Animated version of the book by Margaret Mahy.
Host award-winning geoscientist, Richard Alley provides an eye-opening look at some of the world's most important case studies in smart energy. Alley travels to Spain and Morocco where large-scale solar farms and individual photovoltaic panels atop tents in the Sahara are beginning to bring the vast potential of the sun down to Earth. In Brazil, abundant natural resources are transformed into efficient, sustainable biofuel, making Brazil the only nation whose cars could keep running if all gasoline were to vanish. In Denmark, and West Texas, citizens have taken sustainability into their own hands by becoming stakeholders in wind turbines. And in China, he explores multiple sustainable energy technologies, including exclusive footage from GreenGen, the world's most advanced low-carbon emissions power generation plant. Part One Earth: The Operators’ Manual.
Hear from a forest services manager who leads projects for forest health and sustainability. He discusses the importance of math, science, writing, and communication in the field of forestry. Learn about the many careers available in the area of natural sciences. Part of the "Career Connections" series.
Part of the "Green Careers" series. Visits a naval air station where a team from the Environmental Protection Agency manages a massive program to remove a half-century of hazardous waste. Profiles such jobs as hazardous-waste technician, chemist, toxicologist, and EPA project manager. Jobs profiled include the following: project manager, technical manager, safety officer, chemist, and scientist.
New scientific evidence suggests that some wolves evolved into dogs by domesticating themselves, and not by humans taming them. Features evidence that dogs have traveled and been buried with humans since prehistory, adapting to every climate and evolving into many subspecies or types of the same dog species. Human cultures might not have evolved as they did without the help of the dog, our most cherished and probably first domestic animal companion.
Explores the nature, habits, and habitats of manatees, one of earth's most gentle creatures. Explains how they are endangered and how they are nursed back to health after accidents with boats.
Provides an overview of some natural and human-made wonders of the world. Natural forces created mountains and canyons, unique bodies of water, and diverse ecosystems. People made ancient cliff dwellings, Stonehenge, pyramids, the Great Wall, and Hoover Dam, some very significant structures. All reveal the history of earth and its inhabitants.
The Jantar Mantar Observatory is a collection of instruments built by Maharaja Jai Singh II in the 18th century. These instruments include a diagram of the universe and can accurately measure time. Part of the "Around the World" series.
Nano expert Jameson Wetmore from Arizona State University offers tips for managing the potential risks associated with nanotechnology. Part of the “Ask a Scientist” series.
Sean Carroll, professor at University of Wisconsin-Madison, discusses the delicate balance of ecological systems. He explains how one seemingly minor change in one species can upset an entire ecosystem. Part of the "Ask a Scientist" series.
Showing collections 1 to 6 of 6
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
