Posted in DUML Physics 53, Physics 53 Content/Resource, tagged Acoustics on December 16, 2009 | Leave a Comment »
http://ow.ly/MEpo
Blue Whale Songs Get Even Bluer
Why are blue whales singing with increasingly deeper voices?
By Emily Sohn | Wed Dec 16, 2009 07:00 AM ET
Blue Whale Songs
Scientists can’t seem to figure out why blue whales are singing at a deeper pitch.
Getty Images
Blue whales’ songs are hauntingly deep, filled with extraterrestrial vibratos, and utterly mysterious. Despite many [...]
Posted in DUML Physics 53, Physics 53 Content/Resource, Physics Phun, tagged Acoustics on December 2, 2009 | Leave a Comment »
http://www.wired.com/wiredscience/2009/12/blue-whale-song-mystery/
My sweet physheads have completed lab activities for the fall Physics 53 course and are now finishing the last of the material for recitation and preparing for the final exam — my how time flies. For the lab on mechanical waves and sound in particular, many students choose to submit a short research blurb about [...]
Posted in DUML Physics 54, Data and Visualization, Physics 53 Content/Resource, tagged DUML Physics, Visualizations in E&M on July 7, 2009 | Leave a Comment »
Well — day 2 of summer session II and we have already covered Coulomb’s Law, defined the electric field, and calculated the electric field for a number of charge distributions including the important classical electric dipole. I love the MIT opencourseware for physics visualizations. If you click on this live link, you will find [...]
Posted in Physics 53 Content/Resource, tagged Posting with LaTeX on May 18, 2009 | Leave a Comment »
Posted in DUML Physics 54, Physics 53 Content/Resource, Physics 54 Content/Resource, tagged Clean Energy, DUML Physics, Electricity Storage on March 11, 2009 | Leave a Comment »
Ok, perhaps this post is more related to physics 53 material [pressure, fluids and energy] rather than physics 54, but it is highly relevant to the Nicholas School of the Environment and Duke Marine Lab, and it deals with the physics 54 topic of AC-generators. Besides, it is just cool “sustainable” energy technology.
NASA researchers who [...]
