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Articles 1 - 9 of 9

Full-Text Articles in Physics

Measuring Lengths And Areas With Adi. Student Guide, Morton Sternheim Jan 2011

Measuring Lengths And Areas With Adi. Student Guide, Morton Sternheim

STEM Digital

No abstract provided.


Measuring The Acceleration Of Falling Objects, John Pickle Jan 2011

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 …


Analyzing Digital Images (Adi) Resources, Rob Snyder Jan 2011

Analyzing Digital Images (Adi) Resources, Rob Snyder

STEM Digital

Basic introduction to installing and using ADI


Water Treatment Experiments, David Reckhow Jan 2011

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 Jan 2011

Experimental Design For Ozone Projects, Deborah Carlisle, Stephen Schneider

STEM Digital

No abstract provided.


Department Of Physics Newsletter: Spring 2011, Don Candela Jan 2011

Department Of Physics Newsletter: Spring 2011, Don Candela

Physics Newsletters

No abstract provided.


Colloids And Emulsions, Tony Dinsmore Jan 2011

Colloids And Emulsions, Tony Dinsmore

Science and Engineering Saturday Seminars

Colloids and Emulsions.

These materials are very common and are amenable to some nice demonstrations, yet are not part of the usual curriculum. Topics include surface tension (and why droplets are spherical; why shaving cream acts like a solid even though it's made of liquid and gas); Brownian motion and the microscopic origin of heat; the behavior of many particles (phase transitions, how colloidal particles can spontaneously order themselves – an accurate demonstration of how water molecules form ice crystals); what is inside everyday materials.


Mass Flux And Solid Growth In Solid 4he: 60 Mk - 700 Mk, M Ray, R Hallock Jan 2011

Mass Flux And Solid Growth In Solid 4he: 60 Mk - 700 Mk, M Ray, R Hallock

Physics Department Faculty Publication Series

We use the thermo-mechanical effect to create a chemical potential difference between two liquid reservoirs connected to each other through Vycor rods in series with solid hcp 4He to confirm that a DC flux of atoms takes place below 600 mK, but find that the flux falls abruptly in the vicinity of 80 mK. It is impossible to add density to a solid freshly made at 60 mK and samples freshly made at 60 mK do not allow mass flux, even when raised in temperature to 200 mK. Solids created above 300 mK and cooled to 60 mK accept added …


Non-Pairwise Intervortex Interaction Forces, Johan Carlstrom, Julien Garaud, Egor Babaev Jan 2011

Non-Pairwise Intervortex Interaction Forces, Johan Carlstrom, Julien Garaud, Egor Babaev

Physics Department Faculty Publication Series

We demonstrate the existence of a new kind of non-pairwise multivortex interaction forces, which are present between superconducting vortices along with pairwise vortex interactions. We show that the multibody forces are especially important in compact vortex clusters in two-component type-1.5 superconductors and result in extremely rich physics of multivortex bound states.