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While carrying out a liquid-liquid extraction using dichloromethane and a sample of lake water, Jennifer Apell, a graduate student at MIT, observed the formation of an emulsion in the sample, likely due to the presence of certain chemicals in the water. When she let the dichloromethane and water separate, air bubbles became trapped by the emulsion layer at the dichloromethane/water interface, creating the effect seen in this picture. Apell is studying the bioavailable concentration of polychlorinated biphenyls (PCBs) in contaminated water bodies to assess their risk to living organisms.   
Credit: Submitted by Jennifer Apell (Enter our photo contest here.)

Wols (Alfred Otto Wolfgang Schulze)
Ohne Titel (Photogramm) 5/5 , 1938.

CTR-140 for 2-way repeater in Colombia, early 1950s

kosuke ajiro, where did you sleep last night, 2014

Front view, 1 KW NIC radio transmitter manufactured by Cardwell for Intercity Radio Telegraph Co, 1922. This represents a very small but efficient radio transmitter designed for severe service with minimum maintenance; used by the US Bureau of Lighthouses

whitehotel: Saul Fletcher, Untitled No. 132 (rabbit & 2xbirds) (2000)

Gloria Ruth Gordon and Ester Gerston working on programming for the ENIAC, the first electronic general-purpose computer.

Hypatia of Alexandria (350? - 415) as depicted by Masolino da Panicale, 1428. Hypatia was the daughter of Theon, the last curator of the Alexandria library. She taught mathematics and astronomy and also made improvements on a hydrometer, a device used for the measurement of specific gravity of a liquid.
When you seem to be listening to my words, they seem to be your words, with me listening.
Antonio Porchia, from Voices (via violentwavesofemotion)

(via confessionalaesthete)


Robert Mangold
Column Structure VII , 
2006. pastel and black pencil on paper, 
30-1/4” x 22-1/2” (76.8 cm x 57.2 cm).

Constantin Brâncuşi

lauren : Surface of Venus, radar-imaged by Magellan, early 1990s.
Detail of a composite image around 22°S 146°E. The central lacuna is where component images could not be united. 
Image credit: NASA/JPL.
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