10 Matching Annotations
  1. May 2022
    1. Amalia S. Levi@amaliasl·Jun 8, 2020The gap we see between April 13 and April 30, 1816, in #TheBarbadosMercury gazette does not signify lack of material. It reflects the slave revolt between April 14 to April 16 that shut down the island for nearly two weeks (printing house included). 6/ https://dloc.com/AA00047511/00001/allvolumes…12Amalia S. Levi@amaliasl·Jun 8, 2020(It is interesting that when the April 30 issue came out, there is no mention of the revolt. Only on the second page do we find information about the “perfidious league of slaves” that went around pillaging and destroying the island, and about their fate). 7/

      It's interesting to see how these gaps can form - and without background knowledge on the history of that period, the gap would have no context or meaning. It would just be a blip. But that gap has significant historical importance, particularly how information about the revolt was suppressed at the time.

  2. Mar 2022
    1. which by Geber is called white lead, who teachethteaches allsoalso, which way SaturneSaturn may by washing with Mercury be converted into Jupiter

      This seems to be directly related to the epigram. More specifically where the epigrams states that "The livid Spots of Saturn's face correct, And make as white as Snow: when this is done." This seems to describe a process where Mercury is transformed through a process with some element related to Saturn

  3. Aug 2016
  4. May 2016
    1. lesh, the engineering manager, and Dubusker drew on all of McDonnell's experience with shingled-skin structures around jet afterburners for heat protection.
    2. Simulation tests indicate that manual control of the capsule attitude during retrograde firing will be a difficult task requiring much practice on the part of the pilot. By changing the command function from acceleration to rate, the task complexity will be greatly reduced and the developmental effort on display and controller characteristics can be reduced accordingly
    3. There is a natural reluctance to relinquish the mechanical linkage to the solenoid valves but the redundant fly-by-wire systems offer mechanical simplification with regard to plumbing and valving hydrogen peroxide
    1. Three retro rockets fire for 10 seconds each. They are started at 5 second intervals, firing overlaps for a total of 20 s. Delta V of 550 ft/s (168 m/s) is taken off forward velocity.