Cherenkov radiation is electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.
Basically it’s like a sonic boom but for light. Like when a charged particle moves faster than the speed of light in a local medium (e.g. light is 15 percent slower in water)
It makes such a pretty colour. And reminds me of Einsteinium.
The newsreader scares me.
And it’s okay, I do own physical copies of a Playstation 1 and final fantasy VII.
Final Fantasy 7 on my Galaxy Nexus
What more could you ask for?
Need to differentiate arctanh(x)? Got it here.
Need to integrate (x^2-a^2)^-1? Got it here.
Need to know the series expansion about x=0 of sinh(x)? That’s right, got it here!
What I do when I don’t want to do background readings and I only have half an hour left to the workday:
Make pretty colour-coded Feynman diagram sheets.
WOO.
Purty!
Two More Elements Added to The Periodic Table
You can now greet by name two new residents of the period table of elements: Flerovium and Livermorium.
The International Union of Pure and Applied Chemistry officially approved names for the elements — which sit at slot 114 and 116, respectively — on 31 May. They have until now gone by the temporary monikers ununquadium and ununhexium.
Welp, better update cho’ periodic tables
Where do astronauts hang out?
Well played.
Lumen series by Michael Taylor
A current passes through copper electroluminescent (EL) wire, causing the surrounding phosphor coating to emit light. The wire is wrapped around the custom-made costumes worn by models or mannequins, and the movements are then recorded, capturing the kinetic energy.
‘Schrödinger’s Hat’ Uses Invisibility to Measure Quantum World
Mathematicians now suspect quirks in energy-cloaking metamaterials could be exploited to create powerful quantum probes called “Schrödinger’s hats.”
image caption: A “Schrödinger’s hat” metamaterial could trap a signal (red spike at center) from an atomic particle while leaving the signal’s source undisturbed. Image: A. Greenleaf et al./PNAS
Michael Salter - Styrobot, 2008 - 22 feet of styrofoam packing material
They are some pretty cool robots.
Arnulf Rainer - Death Masks, 1978
Waiter, I didn’t order a dragon curve. I ordered a square. I’d like to speak to your manager.
(Source: bacallau)
French artist Mademoiselle Maurice who creates stunning geometric figures on urban surfaces using rainbows of folded origami figures. via