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Description
What forces are structural materials subjected to? How do materials behave under load? How suitable are they for particular uses? And how are key properties of materials determined? This program examines forces in action, discussing translational and rotational forces and looking at cantilevers. It explains how to measure the properties of materials and looks at stress/strain graphs, Young's modulus, and brittle and ductile materials. It also discusses...
Description
Presenting real an dramatic images, this program explores the forces released by explosions and their impact on materials. It identifies key features of explosions: rapid gas expansion and--with high explosives--shock waves. It also looks at the properties of structural materials, particularly their resistance to being broken apart. It shows how these properties can be measured and used to predict the material's response to forces. It also shows applications...
Description
This video includes actual footage from major manufacturers of robots as well as industries using robots in manufacturing and other processes. In its introduction, the program compares industrial robots to science fiction robots and offers reasons for the increased interest in robots. It then covers basic terminology, fundamental concepts, robot system components, classification of robots, programming, and limitations of robots. A section on industrial...
Description
This documentary looks at the history of product testing. Experts drop, pound, smash, crash, disable, and ultimately break their products to test the marketability of new inventions or document the integrity of or improve existing ones. These professionals test how many bullets a Kevlar vest can withstand.
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...
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