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These photos are shadowgraphs of a hydrogen flame exploding inside a balloon. The shadowgraph optical technique highlights density and temperature variations through their effect on a fluid’s refractive index. Here we see that the hydrogen flame has a strong cellular structure and is more turbulent than a methane flame. The cellular structure is a sign of an instability in the curved flame front. The instability and accompanying cellular appearance are a result of the complicated transport and reaction of fuel and oxidizer inside the flame. (Photo credits: P. Julien et al.)

(via freshphotons)



Outgoing for Christian in MI.

(via uspsstamps)


Click here to watch Stephen Colbert discuss the calls for President Obama’s impeachment.


IMAX Poster: ‘Guardians of the Galaxy' | Collider

spazzyourworld, IMAAAAAX


IMAX Poster: ‘Guardians of the Galaxy' | Collider

spazzyourworld, IMAAAAAX



I already liked Old Economy Steve. So, it was only natural I’d like the Scumbag Baby Boomer meme as well.

I don’t know whether I should laugh or cry.

the truth, it burns

(via spazzyourworld)

(Source:, via cartoonpolitics)






so true


this is just so…wow



(Source: kittiezandtittiez, via spazzyourworld)



I tried, that various photographic lenses how will behave under UV light and got quite interesting results. I borrowed a few lenses from a really good friend and started to do some experiments. Some of the lenses fluorescence under UV light with blue/green/yellow/ect. color. 
Why do they glow under UV? Depending on the composition of the glass, it could easily contain mixtures a few rare earth elements, usually Lanthanum, Cerium and sometimes Thorium (yes, that radioactive thing at the bottom of the periodic table). These elements are added to the glass, since if they are present, the glass has a higher refractive index what means, that better optics could be made from them, with lower chromatic aberration. An example.
What is chromatic aberration? It’s also called achromatism or chromatic distortion, is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have different refractive indices for different wavelengths of light. The refractive index decreases with increasing wavelength.

(Source: jamesfords, via harrypottergif)