Students are presented with a hypothetical scenario that delivers the unit's Grand …
Students are presented with a hypothetical scenario that delivers the unit's Grand Challenge Question: To apply an understanding of nanoparticles to treat, detect and protect against skin cancer. Towards finding a solution, they begin the research phase by investigating the first research question: What is electromagnetic energy? Students learn about the electromagnetic spectrum, ultraviolet radiation (including UVA, UVB and UVC rays), photon energy, the relationship between wave frequency and energy (c = λν), as well as about the Earth's ozone-layer protection and that nanoparticles are being used for medical applications. The lecture material also includes information on photo energy and the dual particle/wave model of light. Students complete a problem set to calculate frequency and energy.
6.630 is an introductory subject on electromagnetics, emphasizing fundamental concepts and applications …
6.630 is an introductory subject on electromagnetics, emphasizing fundamental concepts and applications of Maxwell equations. Topics covered include: polarization, dipole antennas, wireless communications, forces and energy, phase matching, dielectric waveguides and optical fibers, transmission line theory and circuit concepts, antennas, and equivalent principle. Examples deal with electrodynamics, propagation, guidance, and radiation of electromagnetic waves.
This course explores electromagnetic phenomena in modern applications, including wireless communications, circuits, …
This course explores electromagnetic phenomena in modern applications, including wireless communications, circuits, computer interconnects and peripherals, optical fiber links and components, microwave communications and radar, antennas, sensors, micro-electromechanical systems, motors, and power generation and transmission. Fundamentals covered include: quasistatic and dynamic solutions to Maxwell’s equations; waves, radiation, and diffraction; coupling to media and structures; guided and unguided waves; resonance; and forces, power, and energy. Acknowledgments The instructors would like to thank Robert Haussman for transcribing into LaTeX the problem set and Quiz 2 solutions.
In this electrochemistry activity, learners will explore two examples of electroplating. In …
In this electrochemistry activity, learners will explore two examples of electroplating. In Part 1, zinc from a galvanized nail (an iron nail which has been coated with zinc by dipping it in molten zinc) will be plated onto a copper penny. In Part 2, copper from a penny will be plated onto a nickel.
The northern reaches of the planet are melting at a pace few …
The northern reaches of the planet are melting at a pace few nations can afford to ignore, yielding potentially lucrative returns in energy, minerals, and shipping. But debate is mounting over whether the Arctic can be developed sustainably and peaceably.
Students learn to apply the principles and concepts associated with energy and …
Students learn to apply the principles and concepts associated with energy and the transfer of energy in an engineering context by designing and making musical instruments. They choose from a variety of provided supplies to make instruments capable of producing three different tones. After completing their designs, students explain the energy transfer mechanism in detail and describe how they could make their instruments better.
This video is from the Energy 101 video series. It explains the …
This video is from the Energy 101 video series. It explains the process for converting micro-algae into fuel and makes the case that algae-based biofuels hold enormous potential for helping reduce our dependence on imported oil.
This video describes how concentrating solar power (CSP) technologies reflect and collect …
This video describes how concentrating solar power (CSP) technologies reflect and collect solar energy to generate electricity. This video explains what CSP is, how it works, and focuses on parabolic troughs.
This introductory video covers the basic facts about how to keep residential …
This introductory video covers the basic facts about how to keep residential and commercial roofs cool and why it is important to reducing the heat island effect and conserving energy.
This video introduces the concept of daylighting - the use of windows …
This video introduces the concept of daylighting - the use of windows or skylights for natural lighting and temperature regulation - and how it is a building strategy that can save operating costs for homeowners and businesses.
This short video shows how different biomass feedstocks are processed and refined …
This short video shows how different biomass feedstocks are processed and refined into sustainable biofuels via biochemical and thermochemical processes.
This video, from the US Department of Energy, shows the basics of …
This video, from the US Department of Energy, shows the basics of how a PV panel converts light radiated from the sun into usable power, whether on the electric grid or off, and without emissions or the use of fossil fuels.
This video defines energy, reviews a model of different types of energy …
This video defines energy, reviews a model of different types of energy and presents the four known stable global energy resources. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.
This video takes an in-depth look at the annual energy available on …
This video takes an in-depth look at the annual energy available on earth against the amount of energy used by humans. It uses a graphic, published by Wes Hermann in the journal Energy, to makes clear the different energy fluxes. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.
This video goes through the carbon cycle and describes how using fossil …
This video goes through the carbon cycle and describes how using fossil fuels threatens the foundation of the aquatic global food chain. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.
This video describes in detail the greenhouse effect and how recovery from …
This video describes in detail the greenhouse effect and how recovery from energy from fossile fuels results in green house gases. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.
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