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Lissajous

Joined 12 July 2009
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Mostly I wish people would write more concisely and carefully, omitting needles words and avoiding weasel words and peacock terms. That probably captures most of my editing changes. Simple things reflecting some of the sentiments in Strunk's The_Elements_of_Style. Don't worry too much about what Geoffrey K. Pullum says about the horrid little book at language log - he's barking up a different tree, mostly upset that someone made a list of rules almost a 100 years ago, and that some people take them as commandments.

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Things to follow up

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References

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My Sandbox

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In Progress

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Discrepancy between Minuteman entry on flight computer and importance to integrated circuits, and what I've seen from the AGC. IN particular, Minuteman originally used discretes (whereas AGC used ICs). Also, it's not clear that the minuteman programs use of ICs was "crucial" to IC development. Also, they were significant customers, but they did not drive the research and development leading to ICs. Cart in front of the horse? Maybe.

LGM-30 Minuteman http://en.wikipedia.org/wiki/LGM-30_Minuteman#Minuteman-II_.28LGM-30F.29

Apollo spacecraft - singular vs plural. What constitutes a spacecraft? In NASA's view, were they individual spacecraft (yes) or components of 1 space craft (yes).

Apollo PGNCS

Apollo Guidance Computer

Note that the claim in AGC that "The Apollo flight computer was the first to use integrated circuits (ICs)" needs to be backed up by a reference. I'm looking at some of the AGC project info for a clear one on this. I'd like solid figures on numbers of ICs used in AGC vs total sales.

Interest of the week: Apollo Guidance Computer

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I'm trying to work out how the various Apollo pages are related. Particularly the Apollo Program and its relationship to AGC, PGNCS, LM, and CM, but also in the wider context of the various missions, hardware, and people.

Also discussion of AGC and 1201/1202 alarms in Apollo 11 is slightly inconsistent/wrong - working to put together a clearer description.

Note in History_of_computing_hardware#Second generation: transistors that there is no mention of the intermediate step - integrated circuit based computers post transistor and pre intel 4004 - e.g., the AGC and the Minuteman guidance computers.

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A blog with a timeline of IC development and usage in Apollo and military - no references, but no matter - can track it down

Apollo References As a note to Self

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Reference from Apollo-11 crew to the 1201 and 1202 cautions during the LM powered descent:

  • Collins, Michael; Aldrin, Edwin (1975), Cortright, Edgar M. (ed.), "A Yellow Caution Light", "NASA SP-350, Apollo Expeditions to the Moon", Washington, DC: NASA, pp. "Chapter 11.4", ISBN 978-9997398277, retrieved 2009-08-30 {{citation}}: More than one of |author= and |last= specified (help)
  • "Apollo 11 mission report", MSC-00171; NASA-TM-X-62633, NASA, retrieved 2009-08-30 {{citation}}: Unknown parameter |NASA_Accession_ID= ignored (help); Unknown parameter |NASA_DocumentID= ignored (help); Unknown parameter |NASA_Report Number= ignored (help)

LRV

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NASA Technical Report Server

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[[1]]


My new LRO Lede

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Done - merged over into the LRO article some while ago (but pre-impact ... no doubt changed by now)

HEVs and electric motors

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Are both notable for being poor quality. Why? Also, why so many different poor pages for types of electric motors.

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