This is the MLR SHF made by Broadwell exclusively for Robertson's Custom Cutlery. The materials of this one are CPM154 and 416 stainless steels, and desert ironwood.
McLaren P1 by Levon
Small chemistry/science tattoo.
Nitrogen fixation. Jason Affourtit writes, “The encircling equation represents biological nitrogen fixation, which was at the core of my undergrad/graduate … (RT @Carl Zimmer: Pulling life out of thin air: a tattoo of nitrogen fixation.