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UrduWithin the cycling realm, “to Everest” involves riding up and down the same mountain until your ascents total the elevation of Mt. Everest. A new record was set a few years ago, but a debate ensued about the strong tailwind the cyclist had on climbs. To what extent do the tailwind help a cyclist as they climb?
Tag: American Journal of Physics
Robotic Insect Toys Build Undergraduate Research Skills in Physics
In the American Journal of Physics, researchers developed an online undergraduate physics lab course using small robotic bugs, called Hexbug Nanos (TM), to engage students in scientific research from their homes. The bugs look like bright-colored beetles with 12 flexible legs that move rapidly in a semi-random manner. This makes collections ideal models for exploring particle behavior that can be difficult to visualize, and students used them to complete experiments to investigate concepts in statistical mechanics and electrical conduction.
Light Polarization Creates Art, Explains Mathematical Concepts
In the American Journal of Physics, Aaron Slepkov from Trent University explores the physics of how polarization-filtered colors emerge, how they can be controlled, and why subtle changes in viewing angle, sample orientation, and the order of layers of films between polarizers can have dramatic effects on the observed colors. The research emphasizes visual examples of concepts related to birefringence, such as addition, subtraction, and order-of-operations.
High School Students Measure Earth’s Magnetic Field from ISS
A group of high school students used a tiny, inexpensive computer to try to measure Earth’s magnetic field from the International Space Station, showing a way to affordably explore and understand our planet.
Study Illustrates Nuances of Gravitational Pull of Ice Sheets
When a large ice sheet begins to melt, global-mean sea level rises, but local sea level near the ice sheet may in fact drop. In American Journal of Physics, a researcher illustrates this effect through a series of calculations, beginning with a simple, analytically tractable model and progressing through more sophisticated mathematical estimations of ice distributions and gravitation of displaced seawater mass. The paper includes numerical results for sea level change resulting from a 1,000-gigatonne loss of ice, with parameter values appropriate to the Greenland and Antarctic ice sheets.