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In this episode, host Steve Backshall conducts an investigation into what makes the Okavango such a diverse place. The Okavango Delta is a vast inland river delta in northern Botswana. It's known for its sprawling grassy plains, which flood seasonally, becoming a lush animal habitat. Part of the "Nature's Microworlds" series.
(Source: DCMP)
Rented by the BP Oil Company to drill an oil well in the Gulf of Mexico, the Deepwater Horizon drilling rig explodes on April 20, 2010. It sinks into the ocean and causes a gigantic oil spill. At issue is negligence in the maintenance and in the tests carried out. On September 19, after months of unsuccessful attempts, the spill is finally declared sealed. However, this incident has generated the largest marine oil disaster in history. Part of the "Butterfly Effect" series.
The area of Southern Washington State around the Mount St. Helens Volcano has been nearly devoid of life since the 1980 eruption – making it a biology lab like no other as scientists observe it springing back to life. The regenerating ecosystem offers biologist John Bishop of Washington State University in Vancouver a chance to study what happens as the mountain springs back to life. Bishop and his team are learning that recovery of an ecosystem is unpredictable and fragile, particularly by observing the impact of a small invader species insect from the weevil family.
For centuries, land travel was restricted to how fast and far humans or animals could walk. In the 19th century, the invention of the bicycle transferred human energy to a set of wheels. During the Industrial Revolution, the invention of the steam engine led to the railroad, a change in transportation that created the tourist industry. In the early 20th century, the invention of the automobile forever changed how humans travel, and with the assembly line, Henry Ford forever changed how goods are manufactured.
In the 1950's, the Soviets decide to turn the vast desert steppes of Kazakhstan and Uzbekistan into fields of cotton and wheat. They diverted some of the rivers that feed the lake to irrigate the new crops. This depleted the Aral Sea, and in 1987, the level of the water falls so low that the sea splits into two bodies of water. It splits again in 2002. In 2014, the eastern part of the Aral Sea disappears forever, which causes an ecological disaster. Part of the "Butterfly Effect" series.
Mendelvium is a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions.
(Source: Library Lyna)
Looks briefly at the history of rockets, from the space programs of the twentieth century into the cutting-edge technologies and dreams of today.
Part of the "A 3-D Demonstration" series. Explores basic electricity as it was perceived by Benjamin Franklin and other early theorists as well as the principles of positive and negative charge, conduction and induction, atoms and electrons, and elementary charge. Relates Coulomb's Law in detail, including the torsion balance experiment, that led to a breakthrough in scientific theory related to electricity.
Though manned space flight began in 1961, any kind of off-earth colonization remains a dream. Astronauts and scientists speculate about the possibilities, dangers, and problems to be overcome.
Learn about the Voyager 2 mission to Neptune in this video from NASA. Voyager 2 reached Neptune in 1989 and discovered the planet appears due to the methane in its atmosphere. The mission also revealed Neptune has at least four rings, six moons, and an interesting weather system.
In 1964, a paleontologist named John Ostrom unearthed some fascinating fossils from the mudstone of Montana. Its discovery set the stage for what’s known today as the dinosaur renaissance: a total rethinking of what scientists thought they knew about dinosaurs. Part of the "Eons" series.
Learn the three criteria for classifying planets and discover why Pluto is now considered part of the Kuiper belt. When Pluto was discovered in 1930, it was classified as the ninth planet in the solar system. However, advances in technology brought about new knowledge of Pluto, and it is now recognized as a dwarf planet.
In this episode, host Margaret Thompson discusses the discovery of exoplanets. Exoplanets are planets revolving around other suns in the universe. The first exoplanet was discovered in 1995, and recently NASA has reported the discovery of over three thousand exoplanets.
Host Emily Graslie interviews Joyce Havstad at The Field Museum. Havstad explains the concept "holotype" and discusses her current research into new species of prehistoric life. Part of "The Brain Scoop" series.
An avid hiker and biologist describes the beauty of Squam Lake in New Hampshire. It was featured in the 1981 film "On Golden Pond" and showcased the sublime beauty and tranquility of the area. Over thirty years later, the lake is still home to loons, deer, beavers, porcupines, and more.
George Washington Carver was born into slavery but also became known as one of America’s greatest scientists. This monument is dedicated to his life and accomplishments. Known as the “Plant Doctor,” Carver learned about plants while observing the day-to-day operations of a 19th century farm.
Hashima Hasan’s love for space started at the age of five. She was standing in her grandparents’ backyard in Lucknow, India watching Sputnik go by overhead. Her ultimate goal to work for NASA materialized in 1994 when she joined NASA Headquarters to manage missions and research programs in astrophysics. Part of the "Women@NASA" series.
Karen Bibb is an aerospace engineer with 22 years of experience working at NASA Langley Research Center. Karen began her career at NASA in 1992, after graduating from Georgia Tech with a master’s degree in aerospace engineering. Currently, she works in the Aerothermodynamics Branch of the Research Directorate. Part of the "Women@NASA" series.
Self-taught scientists and engineers, Wilbur and Orville Wright taught the world how to fly and are one of America’s greatest success stories. Their first successful flight, on North Carolina's Outer Banks, took place in December 1903. Next, they returned to Dayton, Ohio and continued to develop and test the world's first practical airplane.
Ethiopia's Rift Valley seems a barren landscape, but it hides untold archaeological riches. Dig in with Wild Chronicles and National Geographic researcher Zeray Alemseged and unearth a three-million-year-old baby. This historic discovery of tiny bones may shed new light on man's ancestry. Segment of video from Wild Chronicles Series.
Showing collections 1 to 4 of 4
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
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
