The resource "Backbone Devices" is included in the Microcontrollers topic of the EICC Engineering Techology Simulations resource series. This series is segment of a Department of Labor grant awarded to the Eastern Iowa Community Colleges (EICC) of Clinton, Muscatine, and Scott.
Students construct paper recombinant plasmids to simulate the methods genetic engineers use to create modified bacteria. They learn what role enzymes, DNA and genes play in the modification of organisms. For the particular model they work on, they isolate a mammal insulin gene and combine it with a bacteria's gene sequence (plasmid DNA) for production of the protein insulin.
Students follow the steps of the engineering design process as they design and construct balloons for aerial surveillance. After their first attempts to create balloons, they are given the associated Estimating Buoyancy lesson to learn about volume, buoyancy and density to help them iterate more successful balloon designs.Applying their newfound knowledge, the young engineers build and test balloons that fly carrying small flip cameras that capture aerial images of their school. Students use the aerial footage to draw maps and estimate areas.
To safely work with electricity, it is important to have a grasp of the basic theories. Whether we are talking about atomic structure, electrical terms, or measurement devices, understanding the theory of electricity is a key concept. This textbook, divided into three sections, provides easy-to-understand and enjoyable lessons on atomic structure, electrical units, and measurement devices for those training and working as electricians.
Video and study guides for the following topics: Order of operations, algebraic manipulation, negative and fractional exponents, rounding, engineering notation, unit conversion, general industrial safety, energy, power, efficiency, capacity factor, basic electrical properties: voltage, current, resistance, fixed resistors, variable resistors, protoboards, ohmmeters, series resistors, parallel resistors, 4 band resistor color code, DC Ohm’s Law, DC power, voltmeters, ammeters, series DC circuit properties, DC Kirchhoff’s Voltage Law, DC voltage divider rule, parallel DC circuit properties, DC Kirchhoff’s Current Law, DC current divider rule, series-parallel DC circuit properties, instrument loading effects, DC current sources, source conversion, resistive delta-Y conversion, complex DC circuits, DC Superposition Theorem, DC Thevenin’s Theorem, DC Maximum Power Transfer Theorem, DC Norton’s Theorem
This course is the 2nd in a three part series intended to support the flipped classroom approach for traditional basic electronics classes. Basic Electronics 2 covers capacitors and the transient capacitor charge and discharge process, inductors and the transient inductor storage and release process, sinusoidal properties, complex numbers and complex impedance, phasors, AC Ohm’s Law, series AC circuit analysis, parallel AC circuit analysis, and series-parallel AC circuit analysis. The text includes discussions of Kirchhoff’s Voltage Law, the AC Voltage Divider Rule, Kirchhoff’s Current Law, and the AC Current Divider Rule. Additionally the text covers use of AC voltmeters, AC ammeters, function generators, and oscilloscopes. These resources are meant to accompany a hands on lab with the guidance of an instructor.
This course is the 3rd installment in a three part series intended to support the flipped classroom approach for traditional basic electronics classes. Basic Electronics 3 covers apparent, real, and reactive power and power factor, power factor correction, ideal and non-ideal transformers, and transformer connection diagrams, AC circuit analysis techniques and theorems like source conversion, the AC superposition theorem, AC Thevenin’s Theorem, and the AC Maximum Power Transfer Theorem, 3 phase AC systems including balanced and unbalanced 4 wire Y configurations, 3 wire Y configurations, and delta configurations, the single wattmeter method and the two wattmeter method. These resources are meant to accompany a hands on lab with the guidance of an instructor.
Students hypothesize whether vinegar and ammonia-based glass cleaner are acids or bases. They create designs on index cards using these substances as invisible inks. After the index cards have dried, they apply red cabbage juice as an indicator to reveal the designs.
Students learn the basics of acid/base chemistry in a fun, interactive way by studying instances of acid/base chemistry found in popular films such as Harry Potter and the Prisoner of Azkaban and National Treasure. Students learn what acids, bases and indicators are and how they can be used, including invisible ink. They also learn how engineers use acids and bases every day to better our quality of life. Students' interest is piqued by the use of popular culture in the classroom.
The resource "Basic electrical quantities: current, voltage, power" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Introduction to electrical engineering" topic area.
Have you ever wondered why ventilation helps to cool down your hot chocolate? Do you know why a surfing suit keeps you warm? Why iron feels cold, while wood feels warm at room temperature? Or how air is transferred into aqueous liquids in a water treatment plant? How can we sterilize milk with the least amount of energy? Or how do we design a new cooling tower of a power plant?
Transport Phenomena addresses questions like these and many more, exploring a wide variety of applications ranging from industrial processes to daily life problems and even to bioprocesses in our own body.
In Transport Phenomena, the transport and transfer of momentum, heat and mass are studied. To understand these processes which often take place simultaneously, the underlying concepts will be covered in this course.
The resource "Batteries/power" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.
The resource, "Battery Sizing Activity Student Handout" included in "Lesson 1 Batteries and Energy Storage" is a part of "Unit 09 Energy Storage" included in Energy & Sustainability ES - Course 3
The resource "Battery and motor mounts for Spider" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.
The resource "Battery wires" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.
Students explore the properties of composites using inexpensive materials and processing techniques. They create beams using Laffy Taffy and water, and a choice of various reinforcements (pasta, rice, candies) and fabricating temperatures. Student groups compete for the highest strength beam. They measure flexure strength with three-point bend tests and calculations. Results are compared and discussed to learn how different materials and reinforcement shapes affect material properties and performance.
Lighting is responsible for nearly one-third of the electricity use in buildings. One of the best ways to conserve energy is to make sure the lights are turned off when no one is in a room. This process can be automated using motion sensors. In this activity, students explore material properties as they relate to motion detection, and use that knowledge to make design judgments about what types of motion detectors to use in specific applications.
Design of shoreline protection along rivers, canals and the sea; load on bed and shoreline by currents, wind waves and ship motion; stability of elements under current and wave conditions; stability of shore protection elements; design methods, construction methods. Flow: recapitulation of basics from fluid mechanics (flow, turbulence), stability of individual grains (sand, but also rock) in different type of flow conditions (weirs, jets), scour and erosion. Porous Media: basic equation, pressures and velocities on the stability on the boundary layer; groundwater flow with impermeable and semi-impermeable structures; granular filters and geotextiles. Waves: recapitulation of the basics of waves, focus on wave forces on the land-water boundary, specific aspects of ship induced waves, stability of elements under wave action (loose rock, placed blocks, impermeable layers) Design: overview of the various types of protections, construction and maintenance; design requirements, deterministic and probabilistic design; case studies, examples Materials and environment: overview of materials to be used, interaction with the aquatic environment, role of the land-water boundary as part of the ecosystem; environmentally sound shoreline design.
The study of biomimicry and sustainable design promises great benefits in design applications, offering cost-effective, resourceful, non-polluting avenues for new enterprise. An important final caveat for students to understand is that once copied, species are not expendable. Biomimicry is intended to help people by identifying natural functions from which to pattern human-driven services. Biomimicry was never intended to replace species. Ecosystems remain in critical need of ongoing protection and biodiversity must be preserved for the overall health of the planet. This activity addresses the negative ramifications of species decline. For example, pollinators such as bees are a vital work force in agriculture. They perform an irreplaceable task in ensuring the harvest of most fruit and vegetable crops. In the face of the unexplained colony collapse disorder, we are only now beginning to understand how invaluable these insects are in keeping food costs down and even making the existence of these foods possible for humans.
The resource "Ben Eater's Spider" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.