Rees Films (Firm)
Language
English
Description
In this program, geneticist Eric Wieschaus tells the story of how chance events led him into the world of science and looks at his work for which at the age of 48, he received a Nobel Prize. He explains his work on the development of the fruit fly and how it relates to the human genome.
Language
English
Description
This program presents the full interview with geneticist Eric Wieschaus, who tells the story of how chance events led him into the world of science and looks at his work for which at the age of 48, he received a Nobel prize. He explains his work on the development of the fruit fly and how he tracked thousands of fruit-fly crosses to unravel genetic control of early development.
Language
English
Description
This program outlines the essential roles of aerobic and anaerobic respiration and discusses respiration's vital role in all living cells. It explores energy sources for living organisms, endergonic and exergonic chemical reactions, and the role of ATP as energy carrier. Differentiating between aerobic and anaerobic processes, the program illustrates the stages of aerobic respiration, showing glycolysis, the Krebs cycle, and the electron transport...
Language
English
Description
This program outlines the essential features of enzymes and their vital role in all living cells. It discusses the function of a catalyst and enzymes as organic catalysts and looks at activation energy and enzyme structure. It illustrates the lock and key model of enzyme action, examines the roles of coenzymes and cofactors, and explores such factors affecting enzyme action as temperature, pH, enzyme concentration, and substrate concentration. It...
Language
English
Description
This program contrasts energy conversions in electrolytic and galvanic cells and explores electroplating applications of electrolytic cells, including copper electro-refining. It discusses the concept of competition at electrodes and looks at the process of anodizing. The program explains Faraday’s laws of electrolysis and teaches how to perform calculations using Faraday's laws and present practical applications.
Language
English
Description
Using animation and photomicrography, this program illustrates the essential steps of photosynthesis and explains its vital role in converting light to chemical energy. It examines chloroplast structure and function and shows the steps of photosynthesis, looking at the light-dependent stage and the light-independent stage and the inputs and outputs of each. The program presents key factors affecting photosynthesis, including light intensity, water...
Language
English
Description
This program traces the development of primary cells from the Daniell cell to zinc-carbon dry cells, alkaline cells, button cells, and lithium metal cells. It shows essentials of their chemistry and construction and discusses the advantages and limitations of each format. The program also reviews the concepts of power, voltage, and current; differentiates between a cell and a battery; and explains the differences between cells in series and in parallel....
Language
English
Description
This program explains the essential features of redox reactions and their importance both in nature and in industry. It explains what a redox reaction is, discusses oxidation numbers and how they are used, illustrates how a redox reaction can be seen as the sum of two halves, and teaches how to balance equations in redox reactions. The program presents an example of the combustion of methane.
Language
English
Description
This program presents basic redox chemistry principles, with a specific look at energy conversion in the Daniell cell. It illustrates how a galvanic cell is constructed and tested and teaches how to write half-cell equations. The program also explains the electrochemical series, discussing its uses and the limitations of predictions based on the series.
12) Corrosion
Language
English
Description
Explaining what corrosion is, this program examines corrosion in iron, steel, and other metals; looks at factors affecting rates of corrosion; and shows how to protect against corrosion through surface coatings and electrochemical methods. It also discusses the difference between corrosion and metal smelting.
13) Fuel Cells
Language
English
Description
Outlining the basic chemistry and construction of fuel cells, this program traces their development from the alkaline fuel cells vital to the U.S. Space program. It discusses the alkaline fuel cell, considers fuel cells and transport and the hydrogen economy, and discusses fuel cells and batteries for electric cars. The program also considers carbon footprints, stationary power, CHP, and portable fuel cells.
Language
English
Description
This program examines such plant hormones as abscisic acid, auxin, cytokinins, ethylene, and gibberellins. It defines apoptosis and discusses its role in developing and adult organisms; its initiation, looking at intrinsic and extrinsic pathways; and the cell destruction process. The program also looks at the difference between apoptosis and necrosis and examines apoptosis malfunctions and human diseases.
Language
English
Description
This program explains how a Daniell cell works and presents energy conversions and redox reactions involved in the cell. It also outlines the contributions of Daniell, Volta, and Galvani to electrochemistry and explains what the activity series of metals is and how it can be used.
Language
English
Description
Differentiating between electroplating and chemical production, this program explores the chemistry and basic operation of aluminium smelting; sodium production (using the Downs cell); and chlorine and NaOH production (using the membrane cell). It teaches how to ues Faraday’s laws of electrolysis and perform calculations for both aluminium and sodium production.
Language
English
Description
The importance of error and uncertainty in scientific measurement showcases studies of students estimating and reporting the uncertainties in their measurements. The program deals with these questions: why is measurement important in science? Why is uncertainty inevitable in scientific measurements? The importance of multiple measurements and of averaging the results, outliers, how to estimate the range of uncertainty in a measurement, accuracy, and...
Language
English
Description
Learn how mathematical relationships can be investigated experimentally and how to write the report. This program uses case studies to show how the physical world can be described by mathematical relationships. It specifically demonstrates how an experiment can be designed to test the effect of two independent variables and how mathematical formulae can be derived from experimental measurements. This program also outlines how to prepare a report for...