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Sherlock Olmos decides to dig deeper into dark corner of this great house to investigate the suspicious behavior of some chemical elements. The exchange of electrons and the characteristics of hydrogen, fluorine gas, and the noble gases are the primary subjects of his investigation. Part of Chemistry: Solved by Sherlock Olmos Series.
(Source: DCMP)
Solutions are uniform mixtures of molecules in which any of the phases of matter can be dissolved in another phase. Whether solids, liquids, or gases, solution chemistry is important because most chemical reactions, whether in the laboratory or in nature, take place in solutions. In particular, solutions with water as the solvent are the core of all biology. Extending the particle model of matter to solutions enables chemists to predict what will happen to a deep-sea diver who breathes different mixtures of gases or to the life forms in the ocean as carbon dioxide levels rise in the atmosphere. Part of Chemistry: Challenges and Solutions Series.
In this episode, Dr. Varoujan Gorjian discusses what happens when galaxies collide. Usually new stars form due to the impact of gases on one another. Part of the "Ask an Astronomer" series.
Explains the scientific concepts of photosynthesis, respiration, and enzymes. Laboratory experiments demonstrate: the rate of photosynthesis in greenhouse plants; the amount of oxygen used by the body during respiration at varying speeds; and the reaction times of different enzymes.
Describes the accelerating impact human activity has on the atmosphere, water, and land use. Focuses on the continuing influences of industrialization, noting particularly the greenhouse effect, global warming, and potential problems with earth's fresh water supply.
What is the difference between hydrosphere, lithosphere, and atmosphere? What gases make up the atmosphere? How many layers are in our atmosphere and what are their differences? After answering these and other questions, concludes with a quiz.
Argentinean agriculture has one of the world’s highest productivity rates and is known for its soybean, corn and sunflower crops. However, the industry is also a significant contributor of greenhouse gas emissions. These climatic changes could in turn affect the productivity of the agricultural sector as well as impact economic aspects of the farmers’ lives. Chapter 3 of Air: Climate Change Series.
Glaciers are melting, sea levels are rising, and the weather is becoming more extreme. Corporations talk about optimizing resource use, saving energy and reducing greenhouse gas emissions to stop worsening climate change. They start to promote hybrid cars, plant-based detergents and new technologies… but how much do they really intend to change, and what do plants have to do with marketing?
Advances in technology applied to agricultural production processes increase with the passage of time. This occurs because society demands better products. For this reason the Universidad Nacional Abierta y a Distancia through the School of Agricultural Sciences, Livestock and Environment organized the first International Congress of Agricultural Biotechnology, in which researchers from around the continent and Europe gathered to share technological advances and research in Biotechnology.
One of the fifteen parts of the "Farm to Market" series. Just like fruit and vegetables, flowers are raised commercially on farms. Shows how flowers, such as roses, orchids, anthuriums, and carnations, are raised outdoors and in greenhouses. Also visits a wholesale flower market to see where merchants go to buy flowers for their stores.
Establishes the vital importance of the greenhouse effect for life on Earth. Presents a balanced argument to assess whether anthropogenic climate change-often called "global warming"-is in fact taking place. Offers clear arguments on both sides of the debate and illustrates both more economically developed countries and less economically developed countries. Provides a thorough and balanced examination of this important and often contentious issue.
Host Peter Tonge visits with Robert Almquist of Almquist Flowerland who offers tips on raising and caring for houseplants. Covers the following topics: watering during winter months; combating pests; buying houseplants; repotting and pruning; determining types of soil; and using a granular soil additive to help the soil retain moisture. Originally aired as an episode of "The Good Green Earth."
Scientists have long chalked up ocean mixing of salt, heat, nutrients, and gases, such as oxygen and carbon dioxide, to wind and tides. New research is investigating another possible contributor: krill. Mixing ocean water may seem like a big job for such a tiny creature, but krill are a force of nature when they migrate in giant swarms to feed at night. Part of the "Science Nation" series.
Host Peter Tonge visits with Wayne Schoech of New England Bonsai Gardens who offers suggestions on how to care for bonsai (ancient Oriental art form of miniaturizing trees and shrubs) when you bring it home. Mark Heinlein, also from the Gardens, transforms a three-year-old juniper into an ancient, windswept tree in 25 minutes. Originally aired as an episode of "The Good Green Earth."
The tourism industry not only generates significant revenue for locales but also contributes to climate change. Currently, it is estimated that the tourism industry generates about five percent of total greenhouse gas emissions. The percentage is expected to increase by eighty percent by 2035. Climatic conditions are considered a decisive factor attracting people to different geographic areas. However, destinations are beginning to suffer environmental changes as a consequence of tourism. Chapter 6 of Air: Climate Change Series.
Host Peter Tonge visits with Paul Rogers of Stonehedge Nursery who offers tips on growing culinary herbs from seeds indoors on a windowsill. Also shows how to identify soil type with a basic 10-minute test. Looks at some of the organic additives you can use to improve your soil. Originally aired as an episode of "The Good Green Earth."
Presents the principles of atmospheric dynamics. The Earth's atmosphere is a balance of gases and sunlight that allows for the possibility of life. It has a composition, structure, and life sustaining biological, geological, and chemical cycles in its lower reaches. Also, discusses how these atmospheric elements are being impacted by the unprecedented burning of fossil fuels.
Volcanoes are a part of the earth, and they have intrigued people for hundreds of years. Scientists study the earth's plates in order to understand the complexity of volcanic activity around the world. They also study different types of lava, rocks, and the gases that have dissolved into rocks. In the past, studying volcanic activity was extremely dangerous for scientists. Now they have access to tools, such as global positioning systems and seismometers, to help in predicting volcanic activity.
Currently, cities have a fundamental role in the struggle against climate change and harmful environmental practices. But, at the same time, major global cities consume more than two thirds of the world’s energy and release seventy percent of the global emissions of carbon dioxide. Climate change has become part of the worldwide agenda for major cities as they develop policies and practices to protect the environment and reduce greenhouse gas emissions. Chapter 2 of Air: Climate Change Series.
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Biology related concepts
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