Discover and read the best of Twitter Threads about #sealbeach
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#TIL that engineers had issues with the honeycomb insulation on the #SaturnV second stage, so they ended up hiring local surfers from #SealBeach CA, who had experience in working with the material, to apply it to the vehicle 🚀🏄 @NASAhistory 
The challenging area was the Stage Two (S-II) common bulkhead on #SaturnV, where the LH2 and LO2 tanks shared a common interface (see center of image)
In #SaturnV's early days, #NorthAmericanAviation engineers attempted to adhere the insulation to the LH2 tanks in large vacuum chambers, so the insulation would be sucked down onto the adhesive coated metal. However, the team had problems with the insulation popping off the tank.
Happy #WorldWetlandsDay! Give it up for Los Angeles' largest and only remaining native wetlands area, the Ballona Wetlands. #Westchester #PlayaDelRey #MarinaDelRey
We do have a few restored or re-created #wetlands areas in the Los Angeles area, most notably the #Malibu Lagoon:
#WorldWetlandsDay
#WorldWetlandsDay
There's also the South Los Angeles #Wetlands Park, opened in 2012, formerly a @metrolosangeles bus yard and #LARy streetcar maintenance facility off of Avalon Blvd:
#WorldWetlandsDay
#WorldWetlandsDay
