Luminol is used by forensic investigators to detect trace amounts of blood left at crime scenes as it reacts with iron found in hemoglobin. It is used by biologists in cellular assays for the detection of copper, iron, and cyanides, in addition to the detection of specific proteins by Western Blot.
For analysis of an area, luminol can be sprayed evenly across the area, and trace amounts of an activating oxidant will cause the luminol to emit a blue glow that can be seen in a darkened room. The glow lasts for about 30 seconds, but the effect can be documented by a long-exposure photograph. It is important that the spraying be evenly applied to avoid creating a slanted, or biased impression, such as blood traces appearing to be more concentrated in areas which received more spray. The intensity of the glow does not indicate the original amount present, but only the distribution of trace amounts of substances left in the area.
Friend sent this to me. Could not be more on point (via afadingparlance)
The last line of Johnny The Homicidal Maniac (via girlsnotgrey)
let’s hear it for captain america
#sebstan’s acting choices keep me awake at night#he made bucky so fond of steve but so bitter of the world did to him#it’s almost as if bucky believes the world corrupted steve#it took away his vulnerability#made him into the hero he shouldnt be#it’s almost selfish of bucky#fuck me im done (via punkrickgrimes)
"You turned my gentle friend into a weapon and I am less than thrilled about it"