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Throughout history transportation has been a basic necessity for mankind given his need to move or travel to obtain food, communicate with others, investigate, explore and inhabit new and distant lands. Humans' dependency on transportation for meeting needs and in some cases survival is of the main reasons transportation is undergoing technological changes.
(Source: DCMP)
Explores the need for many multicellular plants to have specialized internal transport systems, which are systems that can efficiently distribute materials from soil and leaves to the parts of the plants where they are needed. An overview of how plants obtain their nutrients is provided. The structure and function of root hairs is explored, explaining their remarkable ability to facilitate an enormous uptake of water and dissolved minerals for the plant. Following this, the separate transport systems of the xylem and phloem are explored in detail. Also explains the mechanisms by which vascular plants transport water and minerals upward from the roots as well as sugars from leaves and other sugar sources throughout the plant for storage or for growth and repair.
Roads are the largest human artifact on the planet. As the transportation crisis grows, a new generation of ecologists, engineers, planners and citizens are working to transform the future of the American road. America's road network was largely created before the rise of modern ecology. Now, with greater concern for the environment, the film asks, how do we balance those concerns with our ongoing transportation needs?
Part of the "Green Careers" series. Introduces job opportunities in recycling, including collection, transportation, receiving and sorting, disassembly, handling hazardous materials, scheduling, operations, and plant management. Recycling provides opportunities for young people to start with a temporary or part-time job, then move up to supervisory and management responsibilities. Jobs profiled include the following: e-waste entrepreneur, plant manager, biofuel coordinator, and truck driver.
Maritime archaeology is a discipline within archaeology that specifically studies human interaction with oceans, lakes, and rivers through the study of artifacts. Researchers trace the historical aspects of human dependence and influences on bodies of water. Some areas of interest include harvested goods from the sea, fishing techniques, transportation, and water quality. Part of the "Adventures of a Maritime Archaeologist" series.
In this episode, host Mo Rocca highlights the future of fast ground travel via a hyperloop and discusses a smartphone game that also provides an abs workout. Researchers and medical professionals are using a camera to help check for sun damage. Part of "The Henry Ford Innovation Nation With Mo Rocca" series.
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.
Tells the inconvenient truth about the environment. Outlines how to conduct an eco-investigation of homes, schools, and communities to determine which daily routines waste resources or are harmful to the environment. Examines use of grocery bags, the packaging of products, food and drink, water consumption, the safety of cleaning products, and energy usage in homes. Takes a closer look at paper and other material usage in schools as well transportation in communities. Shows how individuals contribute to the problem and how to be part of the solution of eco-friendliness.
Typically, diesel fuel is made from crude oil, but scientists can make high-grade diesel from coal, natural gas, plants, or even agricultural waste, using a process called Fischer–Tropsch (FT). FT Diesel is the ideal liquid transportation fuel for automobiles, trucks, and jets. It’s much cleaner burning than conventional diesel, and much more energy-efficient than gasoline. But, FT Diesel is expensive to make and generates lots of waste. With support from the National Science Foundation and its Center for Enabling New Technologies through Catalysis (CENTC), chemists around the United States are working together to improve the cost and energy efficiency of alternative fuels. Part of the National Science Foundation Series “Science Nation.”
This project envisions a future where 3-D robotic systems can be produced and designed using 2-D desktop technology fabrication methods. If this feat is achieved, it would be possible for the average person to design, customize, and print a specialized robot in a matter of hours. This new project would completely automate the process, from sketches on-demand, anywhere, and with the skill of a team of professional engineers, leading to potential transformations in advanced manufacturing. The Computer Science and Artificial Intelligence Laboratory, known as CSAIL is focused on conducting groundbreaking research in artificial intelligence, computer systems, and the theory of computation, while also tackling pressing societal challenges such as education, health care, manufacturing and transportation. Part of the National Science Foundation Series “Science Nation.”
