Via Schtaky with thanks to Lickal0lli for the translation
What makes fireworks colorful?
It all thanks to the luminescence of metals. When certain metals are heated (over a flame or in a hot explosion) their electrons jump up to a higher energy state. When those electrons fall back down, they emit specific frequencies of light - and each chemical has a unique emission spectrum.
You can see that the most prominent bands in the spectra above match the firework colors. The colors often burn brighter with the addition of an electron donor like Chlorine (Cl).
But the metals alone wouldn’t look like much. They need to be excited. Black powder (mostly nitrates like KNO3) provides oxygen for the rapid reduction of charcoal (C) to create a lot hot expanding gas - the BOOM. That, in turn, provides the energy for luminescence - the AWWWW.
Aluminium has a special role — it emits a bright white light … and makes sparks!
Happy Fourth of July! :D
Chefchaouen, a small town in northern Morocco, has a rich history, beautiful natural surroundings and wonderful architecture, but what it’s most famous for are the striking and vivid blue walls of many of the buildings in its “old town” sector, or medina.
The maze-like medina sector, like those of most of the other towns in the area, features white-washed buildings with a fusion of Spanish and Moorish architecture. The brilliantly blue walls, however, seem to be unique to Chefchaouen. They are said to have been introduced to the town by Jewish refugees in 1930, who considered blue to symbolize the sky and heaven. The color caught on, and now many also believe that the blue walls serve to repel mosquitoes as well (mosquitoes dislike clear and moving water).
Whatever the reason, the town’s blue walls attract visitors who love to wander the town’s narrow streets and snap some beautiful photos.
thedancingstars said: Neil, does life ever get better?
Yes. (Remembers being 22 year old Neil Gaiman, who dreamed of being a writer and had nothing to keep going for, except that dream.)
URAAAAGHHH!!! KICK sleep in the MOUTH!! To everybody else out there fighting to get it done tonight, my moral support goes out to you! #Let’sDOThis!!
Callum Russell is a London-based artist who works on hand-cut paper illustrations. His images are characterized by strong contrasts and large shadows areas which design patterns and textures. The subject are usually street scenes, interior of train stations and bridges with silhouettes of passers-by merging in the building shadows. The refined technique produces images which look somehow out-of-time which may echo far away styles and aesthetics like that of Frank Miller comics or of traditional Japanese woodblock printing.
The new book will be called You Are Here - Around the World in 92 Minutes. Dawn shadows on the Hudson, New York City.
If you’re tabling at a con as a Li’l Rookie, get ready to experience these 12 Stages of Feels exactly like this.
Heya folks. I don’t reblog often, but I’m rebloggin’ this.
That’s because I’ve had this day, multiple times. This was me. And if you’re planning on taking a shot at the whole cartoonist thing, this will inevitably, horribly, unavoidably be you.
Cartooning careers are forged in the crucible of obscurity. This period, the one where no one cares and you go home discouraged, is when most aspiring creators quit. It’s just too much.
But if you can live through a few years of Saturdays spent being passed over for meme t-shirts and fanart prints, if you keep producing and keep going to shows and keep sharing work, you can reach escape velocity. You can find an audience that wants to support you.
Talk yourself out of giving up. Give your work a chance. Your fans just haven’t found you, yet. ( o_o)-b
This is still me at every con. Except less anger and more despair. Hang in there, everybody.