Multimedia
Investigation of MEMS bi-material sensors with metamaterial absorbers for THz imaging [video]
(2014-06-03)
There has been a continued interest in the terahertz (THz) imaging due to penetration through non-metallic objects and non-ionizing properties. Real-time imaging in this spectral range has been demonstrated using infrared ...
Thermoacoustic Engine - How do these Hofler Tubes Generate Sound? [video]
(Naval Postgraduate School, Monterey, California, 2015-06)
This thermoacoustic engine, also known as a Hofler Tube, has no moving parts. A strong temperature gradient across closely spaced plates in the middle of the tube creates a thermodynamic cycle of oscillating air that ...
One dimension - Freefall of a feather and penny [video]
(Naval Postgraduate School, Monterey, California, 2014-07)
This classic demonstration dramatically shows that all bodies in a gravitational field have the same acceleration in the absence of air resistance. A penny and feather are in a closed acrylic tube with a valve. The tube ...
One dimension - Freefall of a baseball and a piece of paper [video]
(Naval Postgraduate School, Monterey, California, 2014-07)
Here I hold a horizontal piece of paper and a baseball at the same height from the table. I then ask which will strike the table first, if they are simultaneously released from rest. After receiving their responses, I then ...
One Dimension - Constant Velocity and Constant acceleration [video]
(Naval Postgraduate School, Monterey, California, 2014-07)
Using a glider on an air track we can see what constant acceleration in one dimension looks like and what constant velocity looks like. Constant velocity: Use the glider to check that the air track is level. Two independent ...
How Electrostatic Speakers Work [video]
(Naval Postgraduate School, Monterey, California, 2015-05)
Here's how Electrostatic Speakers Work. Did you know that a regular old loudspeaker converts electrical energy into acoustic energy? But what about an electrostatic speaker? In this video Dr. Bruce Denardo explains how an ...
How Does a Submarine Sink and Rise? Soda Bottle Diver [video]
(Naval Postgraduate School, Monterey, California, 2016-05)
How Can a Submarine Sink and Rise? Cartesian Diver Hello. I’m Dr. Bruce Denardo here in the Physics Lecture Demonstrations Laboratory at the Naval Postgraduate School in Monterey, California. How can a submarine sink or ...
Imaging Sound with Flames - The Resonant Flame Tube [video]
(Naval Postgraduate School, Monterey, California, 2015-06)
The Resonant Flame Tube is a fun physics demonstration. The tube is filled with propane and then lit on fire.
Helmholtz Resonator - Think you know how helmholtz resonators work? [video]
(Naval Postgraduate School, Monterey, California, 2015-05)
Helmholtz Resonator - Here's a gentle physics lesson on helmholtz resonators, complete with multiple demonstrations. Dr. Andres Larraza of the naval postgraduate school demonstrates various helholtz resonators to the 2015 ...
Anechoic chamber demonstrations [video]
(Naval Postgraduate School, Monterey, California, 2014-11)
This is the Anechoic Chamber at the Naval Postgraduate School. This video was originally create for Ph3451, an upper level acoustics course but we thought you might like it too...There's some cool effects going on here. ...
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Physics (76)