Eastern portion of the Veil Nebula
Credit: Bruce W., Astronomy.com
Sapphirina copepod, a.k.a. "sea sapphire" is a tiny shrimp like crustacean that makes up the bottom of the food chain. The microscopic layers of crystal plates inside their cells catch light and reflect back different hues, from bright gold to deep blue that resembles like a gem.
When they’re abundant near the water’s surface the sea shimmers like diamonds falling from the sky. Japanese name this kind of water, “tama-mizu”, jeweled water. Combine this nifty trick with the sea sapphire’s impressively transparent body, and you have an animal as radiant as a star in one moment, and invisible in the next.
Bismuth is a brittle metal with a white, silver-pink hue, often occurring in its native form, with an iridescent oxide tarnish showing many colors from yellow to blue. The spiral, stair-stepped structure of bismuth crystals is the result of a higher growth rate around the outside edges than on the inside edges. The variations in the thickness of the oxide layer that forms on the surface of the crystal causes different wavelengths of light to interfere upon reflection, thus displaying a rainbow of colors. When burned in oxygen, bismuth burns with a blue flame and its oxide forms yellow fumes.
Though virtually unseen in nature, high-purity bismuth can form distinctive, colorful hopper crystals. It is relatively nontoxic and has a low melting point just above 271 °C, so crystals may be grown using a household stove, although the resulting crystals will tend to be lower quality than lab-grown crystals.
Hace 6 meses… #FADU #sinfiltro
a little bird eating cheese crackers in my At History class
Cuándo hay tráfico vamos por colectora @sofifranco93 #fadu
Todo puede ser aun más tétrico de lo que ya lo es…
Escalera de emergencias, FADU, UBA.