TFW the kilogram gets redefined in terms of a universal constant, but the mile is still 5280 feet in freedom units5yr ⋅ akpth ⋅ r/MURICA
Testing apparatus for the Saturn V's F-1 rocket engine, Edwards AFB, 1959 [2203x3000]10yr ⋅ akpth ⋅ r/MachinePorn
A British SAS patrol, returning from a 3 month desert patrol during the North African Campaign. The jeeps were stripped of all unnecessary parts (including windshields and bumpers) to save weight for fuel, provisions, and machine guns. 18 January 1943 [800×713]10yr ⋅ akpth ⋅ r/HistoryPorn
Testing apparatus for the Saturn V's F-1 rocket engine, Edwards AFB, 1959 [2203x3000] (x-post r/MachinePorn)10yr ⋅ akpth ⋅ r/HistoryPorn
More Gravitational Lensing at work, Einstein's Cross: a single distant quasar is lensed into four distinct points of light by a nearer galaxy.10yr ⋅ akpth ⋅ r/space
