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Articles 61 - 87 of 87
Full-Text Articles in Physics
Wind Power, Susn Reyes
Wind Power, Susn Reyes
Science and Engineering Saturday Seminars
No abstract provided.
Institute Overview, Morton Sternheim
Institute Overview, Morton Sternheim
STEM Digital
Digital cameras and computers are widely available for students and teachers. However, they are mainly used for documentation: creating PPT presentations, handouts, posters, etc. STEM DIGITAL shows how digital image analysis can be applied to environmental (and other) research in STEM courses. Application to studies of air quality, water quality, arsenic contamination, climate change, diffusion, etc.
Digital Camera Basics, Stephen Schneider
Measuring Lengths And Areas With Adi. Student Guide, Morton Sternheim
Measuring Lengths And Areas With Adi. Student Guide, Morton Sternheim
STEM Digital
No abstract provided.
Measuring G With Movie Tracker, Stephen Schneider
Detecting And Mixing Colors, Rob Snyder
Detecting And Mixing Colors, Rob Snyder
STEM Digital
How can Analyzing Digital Images software reveal the differences between primary colors of light and primary colors of paints or pigments?
Measuring The Acceleration Of Falling Objects, John Pickle
Measuring The Acceleration Of Falling Objects, John Pickle
STEM Digital
Earth's gravity pulls all objects toward its center, and near the Earth's surface. Objects in free fall accelerate at 9.8 m/s2 vertically downward, provided air resistance is negligible. This value of acceleration is often referred to as "g". There are many ways to measure this rate of acceleration, and most require a timing device. Typically, stopwatches are the least expensive technology, so these are commonly available in high school science classrooms. With the recent addition of movie cameras on cell phones and digital cameras, another timing tool is available at moderate cost (free if the school policy …
Leaf Leaching Experiment, David Reckhow
Leaf Leaching Experiment, David Reckhow
STEM Digital
Water treatment engineers and public health officials need to pay careful attention to the presence of dissolved organic matter in water supplies selected for human consumption (i.e., raw drinking waters).
Measuring Albedo With Adi - An Intensity Application, Morton Sternheim
Measuring Albedo With Adi - An Intensity Application, Morton Sternheim
STEM Digital
Why are Polar Regions more affected by global warming than other parts of the globe? One reason (there are others) is that as sea ice melts and more open water appears, more energy is absorbed, and warming accelerates. This is a form of positive feedback and it makes the polar climate change faster than the climate in temperate areas. Increasing vegetation on land also has a similar positive feedback effect. This effect is a change in the albedo – the fraction of the incident sunlight that is reflected back to space.
Stem Digital And Adi In The Classroom, Jennifer Welborn
Stem Digital And Adi In The Classroom, Jennifer Welborn
STEM Digital
Applications of ADI by students at Amherst Regional Middle School
Co2 Diffusion Through Gelatin Experiment, Jennifer Welborn
Co2 Diffusion Through Gelatin Experiment, Jennifer Welborn
STEM Digital
An example of measuring lengths.
Natural Organic Matter In Water, David Reckhow
Natural Organic Matter In Water, David Reckhow
STEM Digital
Formation in Watersheds and Removal in Water Treatment
Using Adi To Quantify A Color Change In Crayfish, Jennifer Welborn
Using Adi To Quantify A Color Change In Crayfish, Jennifer Welborn
STEM Digital
Do Crayfish Change Color If Their Environment Changes? A Guided Inquiry Lab for 7th grade Life Science
Background: There is anecdotal evidence from bass fisherman that crayfish are able to change color depending on their surroundings. A (cursory) literature review of this phenomenon showed that no formal research has been done in this area. Students had an additional informal lesson about research funding (or lack thereof) because of this finding.
Students designed and conducted a controlled experiment to see the effect of changing environment color on crayfish color.
ADI was used to quantify a color change.
Human Variation In Skin Color And Race As A Social Construct, Jennifer Welborn
Human Variation In Skin Color And Race As A Social Construct, Jennifer Welborn
STEM Digital
This lesson is part of evolution unit which follows heredity and genetics
The lesson is interdisciplinary in nature in that I discuss the concept of race as a social construct and the idea that there are “black, white, red, yellow” skinned people is something that people developed. It is not based on biology. Race groupings are human-made groups.
Students first learn about mixing light and how to determine black and white from an ADI analysis. They learn that red and green = yellow, etc.
They then photograph each other’s forearms and analyze the images using ADI.
We then discuss skin …
Air Quality: Carbon Dioxide, Deborah Carlisle, Stephen Schneider
Air Quality: Carbon Dioxide, Deborah Carlisle, Stephen Schneider
STEM Digital
Measuring CO2 with BTB and ADI.
Measuring Angles With Adi, Stephen Schneider
Analyzing Digital Images (Adi) Resources, Rob Snyder
Analyzing Digital Images (Adi) Resources, Rob Snyder
STEM Digital
Basic introduction to installing and using ADI
Arsenic Project Topics, Julian Tyson
Arsenic Project Topics, Julian Tyson
STEM Digital
How do analytical chemists make light work in tracking potentially harmful chemicals?
Water Treatment Experiments, David Reckhow
Water Treatment Experiments, David Reckhow
STEM Digital
•The water industry spends a lot of money and effort on removal of natural organic matter (NOM) from drinking waters •Problems with NOM (the more NOM the bigger problem) –NOM interferes with the ability of water treatment systems to remove substances that cause disease •Pathogenic organisms •Toxic chemicals –NOM reacts with chlorine‐based disinfectants forming carcinogenic organic byproducts
Experimental Design For Ozone Projects, Deborah Carlisle, Stephen Schneider
Experimental Design For Ozone Projects, Deborah Carlisle, Stephen Schneider
STEM Digital
No abstract provided.
Efficient Modeling Techniques For Time-Dependent Quantum System With Applications To Carbon Nanotubes, Zuojing Chen
Efficient Modeling Techniques For Time-Dependent Quantum System With Applications To Carbon Nanotubes, Zuojing Chen
Masters Theses 1911 - February 2014
The famous Moore's law states: Since the invention of the integrated circuit, the number of transistors that can be placed on an integrated circuit has increased exponentially, doubling approximately every two years. As a result of the downscaling of the size of the transistor, quantum effects have become increasingly important while affecting significantly the device performances. Nowadays, at the nanometer scale, inter-atomic interactions and quantum mechanical properties need to be studied extensively. Device and material simulations are important to achieve these goals because they are flexible and less expensive than experiments. They are also important for designing and characterizing new …
Using Solar Energy, Peter Talmage
Using Solar Energy, Peter Talmage
Science and Engineering Saturday Seminars
• Best energy source for the environment • It’s getting more economical every day • Easy to maintain • Cuts down on foreign oil imports
Abc's Of Dew (Adi) Software, John Pickle
Abc's Of Dew (Adi) Software, John Pickle
STEM Digital
Introduction to three color light, pixels, DEW (ADI) tools
Drag Reduction In Turbulent Flows Over Micropatterned Superhydrophobic Surfaces, Robert J. Daniello
Drag Reduction In Turbulent Flows Over Micropatterned Superhydrophobic Surfaces, Robert J. Daniello
Masters Theses 1911 - February 2014
Periodic, micropatterned superhydrophobic surfaces, previously noted for their ability to provide drag reduction in the laminar flow regime, have been demonstrated capable of reducing drag in the turbulent flow regime as well. Superhydrophobic surfaces contain micro or nanoscale hydrophobic features which can support a shear-free air-water interface between peaks in the surface topology. Particle image velocimetry and pressure drop measurements were used to observe significant slip velocities, shear stress, and pressure drop reductions corresponding to skin friction drag reductions approaching 50%. At a given Reynolds number, drag reduction was found to increase with increasing feature size and spacing, as in …
Nanofilters For Clean Water, Morton Sternheim
Nanofilters For Clean Water, Morton Sternheim
Nanotechnology Teacher Summer Institutes
•The problem: adequate clean water •Kinds of filters •Desalination of salt water •Cleaning polluted water •Hands on nanofiltration experiment Adapted from the Nanosense project: http://nanosense.sri.com/activities/finefilters/index.html
More On Powers Of Ten, Morton Sternheim
More On Powers Of Ten, Morton Sternheim
Nanotechnology Teacher Summer Institutes
A powers of ten personation and activity adapted from the Nanosense project:
http://nanosense.sri.com/activities/sizematters/index.html
Synthesize A Nanoscale Ferrofluid, Rob Snyder
Synthesize A Nanoscale Ferrofluid, Rob Snyder
Nanotechnology Teacher Summer Institutes
The chemical synthesis of a ferrofluid is a nanoscale science activity that originally appears in the Journal of Chemical Education. Access to the following website requires a subscription to the journal. J. Chem. Educ., 76, 943-948 (1999). The article was authored by Jonathan Breitzer and George Lisensky.