Where does sound energy go?

Today in class, a student brought up an interesting question: If sound waves carry energy, where does the energy go when the sound is no longer audible? Since sound waves consist of moving particles, it seems reasonable to assume that

Where does sound energy go?

Today in class, a student brought up an interesting question: If sound waves carry energy, where does the energy go when the sound is no longer audible? Since sound waves consist of moving particles, it seems reasonable to assume that

Standing Waves as Art

Watching students experiment with waves on a spring in class today reminded me of a video I’d seen recently of an art installation by Daniel Palacios.  His creation is not only visually mesmerizing; it also produces sound and reacts to

Standing Waves as Art

Watching students experiment with waves on a spring in class today reminded me of a video I’d seen recently of an art installation by Daniel Palacios.  His creation is not only visually mesmerizing; it also produces sound and reacts to

Why do basic science research?

Sometime during a class back in September, a student asked me, essentially, what basic science research is good for.  He may have phrased it differently, but that’s the form in which it lodged itself in my mind.  I pointed out

Why do basic science research?

Sometime during a class back in September, a student asked me, essentially, what basic science research is good for.  He may have phrased it differently, but that’s the form in which it lodged itself in my mind.  I pointed out

Cell Phone Microscope

Aydogan Ozcan’s research group at UCLA has invented an inexpensive, lightweight device that can be attached to a cell phone, allowing the cell phone to be used as a microscope. This article from the Science Communication Program at UC Santa Cruz

Cell Phone Microscope

Aydogan Ozcan’s research group at UCLA has invented an inexpensive, lightweight device that can be attached to a cell phone, allowing the cell phone to be used as a microscope. This article from the Science Communication Program at UC Santa Cruz

Aurora Australis, View from Space

This video of an aurora was created from still photographs taken by astronauts aboard the International Space Station as they passed over the Indian Ocean in early March. Almost hard to believe it’s real, isn’t it?  Phil Plait of the

Aurora Australis, View from Space

This video of an aurora was created from still photographs taken by astronauts aboard the International Space Station as they passed over the Indian Ocean in early March. Almost hard to believe it’s real, isn’t it?  Phil Plait of the

Recharge an Electric Car by Driving on the Highway?

My brother told me about this yesterday and I had to find out more.  A Stanford team has found a way to transfer energy efficiently from source coils in the roadbed to a receiving coil in the car.  The induced

Recharge an Electric Car by Driving on the Highway?

My brother told me about this yesterday and I had to find out more.  A Stanford team has found a way to transfer energy efficiently from source coils in the roadbed to a receiving coil in the car.  The induced

Tuning Fork in Water

Matt Kuchta has an AWESOME vimeo collection of videos shot with a high-speed camera.  At least, I’m assuming it’s awesome.  I’ve only watched three of them (Popping Water Balloons, Candle Burning Underwater, and Tuning Fork in Water) and was blown

Tuning Fork in Water

Matt Kuchta has an AWESOME vimeo collection of videos shot with a high-speed camera.  At least, I’m assuming it’s awesome.  I’ve only watched three of them (Popping Water Balloons, Candle Burning Underwater, and Tuning Fork in Water) and was blown