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In this episode, the Standard Deviants tackle thermodynamics. The study of thermodynamics involves the conversion of energy to useful forms of power. They discuss the three laws of thermodynamics, heat engines, work processes, heat sources, and entropy. Part of the "Standard Deviants School: Physics" series.
(Source: DCMP)
The study of thermodynamics can lead to predicting how chemical reactions will proceed or how much energy is required or released during the reactions. To better understand chemical reactions, a new thermodynamic value called “enthalpy” is introduced. Students will examine the practical applications of bond enthalpies, calorimetry, and other measurements of the energy in chemical reactions. They will also see how the understanding of thermodynamics and enthalpy is helping scientists optimize the use of crop waste for biofuels and build more efficient automobile engines. Part of Chemistry: Challenges and Solutions Series.
The transfer of heat is one of the fundamentals of scientific inquiry. Using numerous examples of how heat transfer is used in everyday life, this program takes students on a journey through the mechanisms and practicalities of heat transfer, clearly explaining the mechanisms of conduction, convection, and radiation and introducing the concept of thermal capacity of an object.
Students will explore how molecular movement is related to temperature, and how temperature can be measured. Important terminology includes thermometer, thermal energy, kinetic energy, potential energy, energy conversion, molecules, and heat.
Energy is all around and in many forms. Real-life examples of energy provide relevance and meaning to students. Special emphasis is paid to heat energy and how it can be measured. Concepts and terminology explored include energy of motion, light, sound, electrical energy, heat, and thermometer.
Friction always creates heat. Brakes and tires depend on friction to work, but friction can also damage a car's mechanics. For example, the engine is susceptible to the heat caused by friction, and mechanics devise ways to protect against friction while trying to get the greatest amount of horsepower without damaging the car. Part of "The Science of Speed" series.
The Standard Deviants start off with the concept of heat transfer. Students learn how much energy it takes to raise the temperature of a substance. This episode also discusses how matter changes state. Part of the "Standard Deviants School: Physics" series.
The United States Geological Survey (USGS) conducts research on the desert tortoise in the Mojave Desert with the hopes of allowing the species to recover and escape the threat of extinction.
The goal of this research is to determine the mechanisms underlying predatory and defensive behavior guided by an extraordinarily novel sensor in snakes. Pit vipers, pythons and boas possess special organs that form images in the brain of the thermal environment, much like vision occurs in the human brain. Thus, these snakes see heat, and this amazing system is the most sensitive infrared detector on Earth, natural or artificial. A better understanding of infrared-based thermal imaging in snakes is important not only for understanding complex behavior in these highly efficient predators, but also for understanding the evolution of imaging sensors and the behaviors they support in other animals including people. Part of the National Science Foundation Series “Science Nation.”
A key to building denser, stronger materials that won’t fail or fracture under extreme conditions is the manufacture of ultra-high temperature, or UHT, ceramics. UHT ceramics can withstand highly extreme conditions, such as the heat coming out of a rocket as its launching into space. Part of the National Science Foundation Series “Science Nation.”
This demonstration uses a water balloon to show how Earth's oceans are absorbing most of the heat in the atmosphere. The trapped heat in the ocean is warming the planet. Part of the “DIY Space Classroom Activities” series.
Teaches caveman Zog that people use energy in one of two main ways: by moving heat from one place to another (conduction, convection, or radiation) or by transferring energy from one form to another by using an appliance, like a lamp or car. Appliances always waste some energy, and Zog learns why energy efficient appliances are the best choices people have today. As only a caveman can, Zog provides plenty of laughs along the way to finding clever and complete answers to elementary energy questions.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. "Where did the hot go?" wonders Arnold when he finds that his hot cocoa has cooled. In response, Ms. Frizzle whisks the class to the Arctic. What's the freezing Arctic got to do with heat? While the kids try to find out, the bus's engine freezes and the bus floats away. As the bus moves away, so does the heat from everyone's body. How can Ms. Frizzle's kids insulate their body to keep the heat in?
Meet three mechanical engineers who are designing the next generation of jet engines at a major U.S. company. They explain how their curiosity about how things work led them to advanced engineering degrees and cool careers with aircraft engines. Part of the "Career Connections" series.
Fire is an ever-present danger in the world of NASCAR. Drivers are protected by fire-resistant Nomex fabric. These firesuits help keep the drivers safe by decreasing the rate of heat transfer. Part of "The Science of Speed" series.
Plate tectonics describes the large-scale motion of large and small plates of the earth's lithosphere. As the plates slide past one another, they create friction and heat. The tension caused by the friction of heat is released either through earthquakes or volcanoes. Part of the "Earth Science" series.
Our Sun is a nuclear reactor converting hydrogen to helium continuously. X-ray and telescopic images reveal the Sun's photosphere and chromosphere, sun spots, solar flares and winds, and prominences. Describes each and its impact on Earth. Covers some of the Sun's mysteries, and projects what will eventually happen to our closest star.
Deserts are some of the harshest environments in the world. They can be found just about anywhere water is scarce, including in tropical rain forests and even in cold and snowy Antarctica. When most people think of deserts, they immediately think of scorching heat. However, it takes more than heat alone to create a desert. While each desert is unique, all share commonalities: they are dry, windy, arid lands with little annual rainfall.
Uses the extremes of temperature that occur in a day's skiing to show the range of mechanisms through which the human body maintains a steady internal temperature and protects its vital organs, such as shivering, hair erection, and rerouting of blood supplies to conserve heat. Increased blood flow to the body surface, sweating, and panting to lose heat is also reviewed. NOTE: Contains some nudity.
Join vulcanologists as they venture into the heart of Ethiopia's Erta Ale, the oldest live volcano in the world, to ply its secrets of creation. Their mission to sample molten rock from the lava lake requires hauling more than 1000 pounds of gear to the crater, and then rappelling into the active cone. Blistering heat and sulfur stench greet them as they battle this formidable boiling mountain for the sake of science. Segment of video from Wild Chronicles Series.
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Biology related concepts
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