With climate change, some parts of the world will get more water, …
With climate change, some parts of the world will get more water, but others will experience droughts. Some will start seeing more mosquitoes, but some fewer. And some regions might actually benefit economically. What’s the deal? In this episode of TILclimate (Today I Learned: Climate), MIT professor Elfatih Eltahir joins host Laur Hesse Fisher to talk about how climate impacts will differ across the globe. Together, they do a quick world tour, exploring how climate change will affect malaria in Africa, water availability in the Nile, and heat waves in Southern Asia.
In Save the Penguins, the broad context is global climate change. Students …
In Save the Penguins, the broad context is global climate change. Students learn that the energy we use to heat and cool our houses comes from power plants, most of which use fossil fuels to convert chemical energy to electrical energy. The burning of fossil fuels has been linked to increased levels of carbon dioxide in the atmosphere, which in turn has been linked to increases in global temperature. This change in temperature has widespread effects upon life on Earth. Penguins live in the southern hemisphere, primarily on the icy continent of Antarctica. As the Earth warms and ice melts, penguins lose habitat. Therefore, students see that better-designed houses that use less energy for heating and cooling can have an effect on penguins. Energy efficient houses that minimize unnecessary heat transfer will draw less electricity from the fossil fuel burning power plants and not contribute as much to global climate change.
In Save the Penguins, the broad context is global climate change. Students …
In Save the Penguins, the broad context is global climate change. Students learn that the energy we use to heat and cool our houses comes from power plants, most of which use fossil fuels to convert chemical energy to electrical energy. The burning of fossil fuels has been linked to increased levels of carbon dioxide in the atmosphere, which in turn has been linked to increases in global temperature. This change in temperature has widespread effects upon life on Earth. Penguins live in the southern hemisphere, primarily on the icy continent of Antarctica. As the Earth warms and ice melts, penguins lose habitat. Therefore, students see that better-designed houses that use less energy for heating and cooling can have an effect on penguins. Energy efficient houses that minimize unnecessary heat transfer will draw less electricity from the fossil fuel burning power plants and not contribute as much to global climate change.
Astronaut Jack "2fish" Fischer stopped by for the latest episode of the …
Astronaut Jack "2fish" Fischer stopped by for the latest episode of the Smithsonian's ISS Science and tried out a hands-on experiment involving boiling water.
Astronaut Randy Bresnik talks about the challenges of working in the raging …
Astronaut Randy Bresnik talks about the challenges of working in the raging heat and freezing cold. Also check out an experiment you can do in your classroom.
The course Solar Energy will teach you to design a complete photovoltaic …
The course Solar Energy will teach you to design a complete photovoltaic system. The course will introduce you to the technology that converts solar energy into electricity, heat and solar fuels with a main focus on electricity generation. Photovoltaic (PV) devices are presented as advanced semiconductor devices that deliver electricity directly from sunlight. The emphasis is on understanding the working principle of a solar cell, fabrication of solar cells, PV module construction and the design of a PV system. You will understand the principles of the photovoltaic conversion (the conversion of light into electricity). You will learn about the advantages, limitations and challenges of different solar cell technologies, such as crystalline silicon solar cell technology, thin film solar cell technologies and the latest novel solar cell concepts as studied on lab-scale. The course will treat the specifications of solar modules and show you how to design a complete solar system for any particular application. The suitable semiconductor materials, device physics, and fabrication technologies for solar cells are presented. The guidelines for design of a complete solar cell system for household application are explained. Alternative storage approaches through solar fuels or conversion of solar energy in to heat will be discussed. The cost aspects, market development, and the application areas of solar cells are presented.
In this activity, students learn how engineers use solar energy to heat …
In this activity, students learn how engineers use solar energy to heat buildings by investigating the thermal storage properties of some common materials: sand, salt, water and shredded paper. Students then evaluate the usefulness of each material as a thermal storage material to be used as the thermal mass in a passive solar building.
Investigate what makes something soluble by exploring the effects of intermolecular attractions …
Investigate what makes something soluble by exploring the effects of intermolecular attractions and what properties are necessary in a solution to overcome them. Interactive models simulate the process of dissolution, allowing you to experiment with how external factors, such as heat, can affect a substance's solubility.
To understand the challenges of satellite construction, student teams design and create …
To understand the challenges of satellite construction, student teams design and create model spacecraft to protect vital components from the harsh conditions found on Mercury and Venus. They use slices of butter in plastic eggs to represent the internal data collection components of the spacecraft. To discover the strengths and weaknesses of their designs, they test their unique thermal protection systems in a planet simulation test box that provides higher temperature and pressure conditions.
Watch different types of molecules form a solid, liquid, or gas. Add …
Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the phase change. Change the temperature or volume of a container and see a pressure-temperature diagram respond in real time. Relate the interaction potential to the forces between molecules.
This article provides elementary school teachers with background knowledge about science concepts …
This article provides elementary school teachers with background knowledge about science concepts needed to understand the first of seven essential principles of climate literacy--the sun is the primary source of energy for our climate system. Graphs, diagrams, and oneline resources provide more background for the teacher. The article appears in a free online magazine that focuses on the seven essential princples of the climate sciences.
Using a household fan, cardboard box and paper towels, student teams design …
Using a household fan, cardboard box and paper towels, student teams design and build their own evaporative cooler prototype devices. They learn about the process that cools water during the evaporation of water. They make calculations to determine a room's cooling load, and thus determine the swamp cooler size. This activity adds to students' understanding of the behind-the-scenes mechanical devices that condition and move air within homes and buildings for human health and comfort.
This course covers the thermo-fluid dynamic phenomena and analysis methods for conventional …
This course covers the thermo-fluid dynamic phenomena and analysis methods for conventional and nuclear power stations. Specific topics include: kinematics and dynamics of two-phase flows; steam separation; boiling, instabilities, and critical conditions; single-channel transient analysis; multiple channels connected at plena; loop analysis including single and two-phase natural circulation; and subchannel analysis.
The General Chemistry 1 (SCC 201) course has been designated for the …
The General Chemistry 1 (SCC 201) course has been designated for the core competency of Inquiry and Problem Solving along with the Written Communication Ability. These abilities are best observed in the laboratory section of the course where SCC 201 students are asked to submit weekly written lab reports that range in chemistry topics from chemical structures to the chemical analysis of polluted environments. SCC 201 will be implementing a new experiment in the laboratory portion of the course entitled, "Thermochemistry: Heat of Neutralization and Hess's Law. The design of the experiment incorporates many elements of LaGCC's Core Competencies and Communication Abilities, as well as programmatic and course learning objectives both on the departmental and college levels. Natural Sciences major STEM students who successfully complete the thermochemistry lab and write a corresponding satisfactory lab report, will have engaged in two of the program goals, four of the student learning objectives and seven of the course objectives (Please refer to the assignment). The SCC 201 course lies in the midpoint Core Competency program curriculum map for both the Biology and Environmental Science programs and accounts for 3.5% of the final SCC 201 grade. Students will spend 3 hours completing the experiment in lab and in addition spend an estimated 3-4 hours completing the lab write-up. This lab was developed in the Natural Sciences programmatic integration CTL mini-grant seminar. The creation of the lab involved an initial discussion with members of the chemistry programmatic team to outline a common theme between SCC 201, SCC 202 and SCC 251. It was agreed upon that the central topic of thermodynamics would be implemented throughout the designated labs. LaGuardia's Core Competencies and Communication Abilities
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