Image description: This collage of solar images from NASA’s Solar Dynamics Observatory (SDO) shows how observations of the sun in different wavelengths helps highlight different aspects of the sun’s surface and atmosphere. (The collage also includes images from other SDO instruments that display magnetic and Doppler information.) Credit: NASA/SDO/Goddard Space Flight Center.
Learn more about why NASA scientists observe the sun in different wavelengths.
This remarkable photograph shows the then oldest living ex-slave, Mrs. Sally Fickland, viewing the Emancipation Proclamation in the Freedom Train at Philadelphia, on September 17, 1947. This moving image reminds us of the importance of exhibition lighting policies to control both the intensity and duration of light exposure. The National Archives carefully limits the light exposure of this landmark document to ensure that it survives for future generations to see. Emancipation Proclamation, RG 11, ARC # 299998.
The National Archives is commemorating the 150th Anniversary of the signing of the Emancipation Proclamation with a special display of the original document at the National Archives Building in Washington, DC, from Sunday, December 30, to Tuesday, January 1. This will include extended viewing hours, inspirational music, a dramatic reading of the Emancipation Proclamation, and family activities and entertainment for all ages.
When designer Mike Thomspon asked himself, “What if power came at a cost to the individual?” he ended up creating the blood lamp as a statement on energy conservation. This single-use lamp requires a drop of blood to be activated — a personal sacrifice that will really make you think twice before turning on the lights. The lamp’s secret ingredient is luminol, the chemical forensic scientists use to check for blood, which glows blue when it reacts with the iron in red blood cells.
Artist Pedro Reyes, who turned 1,527 weapons into 1,527 shovels to plant 1,527 trees — a project covered on Unconsumption here in 2010 — continues to convert Mexican drug-war weapons into art:
As part of his latest project Imagine, Mexico City based artist Pedro Reyes acquired some 6,700 weapons that were scheduled to be buried (as is customary in mass weapon disposals) and instead collaborated with six musicians to create 50 working instruments as part of a statement regarding increased gun violence in Mexico. The numerous firearms were cut down, welded and formed into a variety of string, wind, and percussion instruments over a period of two weeks … .
(spotted on Colossal here)
More on Reyes’ blog here.