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NOVA follows three reporters from "The New York Times" as they travel the world researching biological weapons for their book, "Germs: Biological Weapons and America's Secret War," and for this documentary. Addresses the questions: Where do germ weapons come from? Who has access to them? Can the air we breathe become a weapon? Can America defend itself against germ warfare?
(Source: DCMP)
Biologists and anthropologists at The Field Museum are studying weaponry to discover the distribution of Central Pacific sharks from more than 100 years ago. Various weapons in the collection have the unique feature of being studded with shark teeth. In this episode, host Emily Graslie discusses the findings and implications from examining the weapons in the collection. Part of "The Brain Scoop" series.
Some conservationists believe that perhaps half of all species on earth will become extinct in the next 50 to 100 years. To prevent that, several groups work to assist efforts at conserving biodiversity. Some of the efforts include taxonomy (cataloging species), managed retreat (letting nature retake areas), saving seeds, and propagating endangered plants. Man's efforts toward destruction and development must be balanced with sustainability.
Biological vectors carry and transmit diseases that affect plants, animals, and humans. This program focuses on diseases transmitted by mosquitoes and ticks. Students will learn how scientists use the information they gather to help control and prevent the transmission of vector-borne diseases around the world. Part of the "Real World Science" series.
New research reveals that loss of sleep leads to increased anger. Researchers are now studying the link between loss of sleep and aggressive behavior. Other segments include bacteria that consume greenhouse gases, a handy robot glove, and drones mapping marine megafauna. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
Imagine having the ability to manipulate light waves in order to see through a skull right into the brain, or being able to use lasers to diagnose a bacterial infection in a matter of minutes. At the Center for Biophotonic Sensors and Systems (CBSS) at Boston University, technologies enabling these abilities and many others are coming to light. With support from the National Science Foundation (NSF), mechanical engineer Thomas Bifano and his colleagues are developing optical microscopes that can image deep into biological tissue, helping scientists observe molecular-scale activity. Their goal is to revolutionize the diagnosis and treatment of disease. Part of the National Science Foundation Series “Science Nation.”
Scientists and researchers are working to understand the possible effects of Antarctic ice melt on global processes. Some areas that might be impacted include currents, water chemistry, and biological balance.
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.
Some of the most powerful and useful things in the world come from plants. Who knew they could help unlock some of biology's mysteries by using the approach of mapping biological pathways? Part of "Science Out Loud" series.
Does snot have a purpose other than being gross? It turns out, it’s a pretty awesome material with many benefits for the human body. A biological engineer at MIT explains the usefulness of snot. Part of the "Science Out Loud" series.
Students explore the important role the environment plays in everyday life. Several environmental problems are highlighted, with a focus on pollution and global warming. Additional concepts and terminology discussed include ecology, biological extinction, resource depletion, overconsumption of resources, fossil fuels, global climate change, and natural resources.
Explains what is normal for boys and girls at puberty: the biological facts of physical maturation, the timeline for growth for both sexes, the normal feelings of self-consciousness, the need for good personal hygiene, why mood swings happen, and preparation of the body for human sexuality and reproduction.
Presents three key biological concepts about homeostasis: controlling body temperature, controlling water level, and controlling blood sugar. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.
Nourish is an educational initiative designed to open a meaningful conversation about food and sustainability, particularly in schools and communities. In this clip, author Michael Pollan explains the benefits of biological food chains as opposed to processed foods. Part of the Nourish Short Films Series.
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on the biological processes involved in cellular respiration and how these processes provide energy to living things. Part of the Science Video Vocab series.
Presents three key biological concepts about sensory responses and tropisms: the eye, nervous system responses, and plant tropisms. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level. NOTE: Dissects a horse's eye to identify functions of each part.
Homeostasis is the tendency of biological systems to maintain relatively constant conditions in the internal environment while continuously interacting with and adjusting to changes originating within or outside the system. In this episode, Pinky and Petunia explore the relationship between homeostasis and feedback loops. Part of "The Amoeba Sisters" series. Please note this title includes a discussion on childbirth.
In this footage, two citizen scientists are studying butterflies and conducting biological surveys of varied ecosystems in the Red Hills and Apalachicola National Forest. They document the wide diversity of butterflies in the region. Part of the "Roaming the Red Hills" series.
Dr. Corina Tarnita describes the importance of termite mounds in a savanna ecosystem. Termite mounds are biological hotspots that concentrate nutrients. When viewed from above, the mounds form a strikingly regular polka-dot pattern. Dr. Tarnita uses mathematical modeling to explain the regularity of the pattern.
Showing collections 1 to 3 of 3
Biology related concepts
A collection containing 59 resources, curated by Benetech
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
