Applied Physics

Oh, What A Tangled Web The NSA Weaves

Oh, What A Tangled Web The NSA Weaves

There’s a popular YouTube video featuring mathematician Edward Frenkel where he describes how the NSA hacked our emails. It is a backdoor into the National Institute of Standards and Technology…
Using LEDs as Light Sensors

Using LEDs as Light Sensors

In my previous article DC Versus AC I discussed how a diode can be used as a rectifier to convert alternating current (AC) into direct current (DC) because the diode allows current to flow in one…
Goodbye Ohm - Hello Heisenberg

Goodbye Ohm - Hello Heisenberg

Goodbye Ohm - Hello Heisenberg Research reported earlier this month shows that electrical resistance in nanoribbons of epitaxial graphene changes in discrete steps following quantum mechanical…
Falconry 101: Put Up Your Flaps During A Dive

Falconry 101: Put Up Your Flaps During A Dive

Peregrine falcons are one of the world's fastest birds, reaching up to 200 miles per hour when diving. Scientists are studying the body shape and wing contour of the bird to better understand how…
The Crowd Dynamics Of Stampedes

The Crowd Dynamics Of Stampedes

Stampedes occur often, and not just in wild animal herds. Previously, physicists developed numerous models of crowd evacuation dynamics based on disasters such as the yearly Muslim Hajj or of the…