Quantization in quantum physics

The way a quantum wave is quantized in a box.
Copyright Bobroff 2012.
Source: Tout est quantique

CERN NEWS : Are we there yet on the search for the Higgs boson ?

Rumors about imminent results on the Higgs boson from the LHC experiments are appearing in blogs, social media and newspapers all over the world. Meanwhile, thousands of physicists are carefully analyzing the data, looking not only for the Higgs but for many other new phenomena.

 

What Keeps Nuclear Weapons from Proliferating: The hardest step in making a nuclear bomb

Bill explains that the hardest step is making the proper type of uranium. Weapons and power plants require uranium that contains a greater amount of the isotope uranium-235 than found in natural uranium, which is mostly uranium-238. He outlines the key difficulty in separating the two isotope: They have nearly identical properties. He explains the two key methods for separation: Gas diffusion and centrifuges.

Other "Engineer Guy" videos

Vortex Shedding (Flow Tank Version)

Wolfgang uses a pendulum partially immersed in a makeshift flow tank to show us the effect of vortex shedding on a small object.


When fluid flows around a cylindrical object, there is a range of flow velocities for which a von Karman vortex street is formed. The shedding of these vortices imparts a small, periodic force on the object. Here the object is a cylinder attached to a physical pendulum whose frequency of oscillation is adjustable. The end of the cylinder is submerged in flowing water. When the frequency of the pendulum is adjusted to match the frequency of vortex shedding, the cylinder swings transverse to the direction of flow with a peak-to-peak amplitude of a few centimeters.

Other Harvard demonstrations

Voyager 1 at the Final Frontier

At the edge of the solar system, Voyager 1 is reporting a sharp increase in cosmic rays that could herald the spacecraft's long-awaited entry into interstellar space.