A blunt warning, a little savage, from the Laser Safety page at The Department of Environmental Health and Safety of Northern Illinois University.

Maxwell’s Equations in Differential and Integral form, probably the extreme expression of mathematical beauty of Physics.

Source (The Physics Education Research group at the University of Colorado Boulder)

Model showing the locations of separation bubbles. The swimming attire from a fluid dynamics perspective.

Source: Bodysuit Yourself: But First Think About It, Coaching Science Abstracts, San Diego State University.

Heat Cloak. A series of concentric rings lets heat propagating from left to right across a metallic sheet flow more readily around a thermally isolated disk than toward its center, leaving no sign of the disk in the temperature distribution on the right side. The colors represent temperatures measured with an infrared camera and are superimposed on a photo of the structure before the rubbery insulating material was added to the holes and gaps. The white lines connect points at the same temperature.

Credit R. Schittny/Karlsruhe Inst. of Tech.

Source: Invisibility Cloak for Heat (American Physical Society)

Curiosity as is seen by Einstein (above, via Physicist Tv) and by XKCD (below, via XKCD).

Richard P. Feynman would have turned 95 today. We’ll miss him always.

Gold dust:

Lecture 1: Law of Gravitation — An Example of Physical Law http://bit.ly/10nWIDw

Lecture 2: The Relation of Mathematics and Physics http://bit.ly/11YPw2X

Lecture 3: The Great Conservation Principles http://bit.ly/11YPs3j

Lecture 4: Symmetry in Physical Law http://bit.ly/17aAa1n

Lecture 5: The Distinction of Past and Future http://bit.ly/1351R52

Lecture 6: Probability and Uncertainty — The Quantum Mechanical View of Nature http://bit.ly/10ArKh1