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1. Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:23:22 JST Foone🏳️‍⚧️

   if you lithobrake your spacecraft but it hits the ocean, it's that hydrobraking or aquabraking?

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:27:23 JST Foone🏳️‍⚧️

     in reply to

     I was writing a shitpost about how there's lots of sources saying the first passive communication satellite was Echo 1, but that's technically incorrect.

     Echo 1 got hydrobraked/aquabraked into the atlantic ocean. Echo 1A, the second attempt, is the first passive communication satellite

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:28:04 JST Foone🏳️‍⚧️

     in reply to

     quote from that post:

     The original Echo 1 was launched with a malfunctioning Delta stage that ended up placing the real Echo 1 into an Altantic-Ocean-centric "orbit" of 0 feet above sea level (0 meters above sea level for you metric guys)

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:32:25 JST Foone🏳️‍⚧️

     in reply to

     My favorite part of the Echo project (besides the prototype that gave a "fireworks" display to the entire east coast by exploding in low earth orbit) is that NASA had to build a big microwave antenna to test it, and then a decade later two punks used that same antenna to discover the Cosmic Microwave Background Radiation.

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:34:12 JST Foone🏳️‍⚧️

     in reply to

     we know about the CMB, the remaining heat of the Big Bang, because of a telescope in New Jersey built for a NASA Balloon experiment that had to be renamed at last moment because they accidentally launched their communication satellite into the atlantic

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 07:39:17 JST Foone🏳️‍⚧️

     in reply to

     It was the first flight of the Thor-Delta rocket: The Thor stage performed perfectly, but this was the first Delta launch, and it failed.
     The attitude control system did not fire, so when the second stage ignited it was pointing the wrong way, which anyone who has played Kerbal Space Program knows is one of those "You Will Not Go To Space Today" events.

   • Hauke Musicaloris (musicaloris@nrw.social)'s status on Wednesday, 25-Dec-2024 08:13:42 JST Hauke Musicaloris

     in reply to

     • Programmer 832-529 🍅

     @smallsees @foone True! Now we just have to know if it's in WGS 84, or a different geoid reference...

   • Programmer 832-529 🍅 (smallsees@social.dropbear.xyz)'s status on Wednesday, 25-Dec-2024 08:13:54 JST Programmer 832-529 🍅

     in reply to

     • Hauke Musicaloris

     @Musicaloris @foone
     You can never be too sure. 0 feet could have been something like 0/2 - 32 meters without that conversion.

   • Hauke Musicaloris (musicaloris@nrw.social)'s status on Wednesday, 25-Dec-2024 08:13:55 JST Hauke Musicaloris

     in reply to

     @foone Thanks for the conversion there, really appreciated the thought 😜

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 08:14:15 JST Foone🏳️‍⚧️

     in reply to

     • Programmer 832-529 🍅
     • Hauke Musicaloris

     @Musicaloris @smallsees I think the geoid doesn't matter much, considering it probably eventually sank. The final orbital height depends heavily on how deep the atlantic was where it landed

   • NosirrahSec 🏴‍☠️ (nosirrahsec@infosec.exchange)'s status on Wednesday, 25-Dec-2024 08:15:29 JST NosirrahSec 🏴‍☠️

     in reply to

     @foone Okay same events, sorry lol

     https://en.wikipedia.org/wiki/Discovery_of_cosmic_microwave_background_radiation

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 08:15:29 JST Foone🏳️‍⚧️

     in reply to

     • NosirrahSec 🏴‍☠️

     @NosirrahSec I hope those pigeons know they helped with SCIENC E

   • NosirrahSec 🏴‍☠️ (nosirrahsec@infosec.exchange)'s status on Wednesday, 25-Dec-2024 08:15:30 JST NosirrahSec 🏴‍☠️

     in reply to

     @foone Wait, I thought we discovered the CMB because of radar giving a hiss and troubleshooting that hiss led to the discovery of the CMB?

     Am I misremembering my physics history?

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 08:38:10 JST Foone🏳️‍⚧️

     in reply to

     • AN/CRM-114

     @flyingsaceur good point, it probably hit that water going pretty fast

   • AN/CRM-114 (flyingsaceur@ioc.exchange)'s status on Wednesday, 25-Dec-2024 08:38:11 JST AN/CRM-114

     in reply to

     @foone At that point it’s steam brakes

   • Foone🏳️‍⚧️ (foone@digipres.club)'s status on Wednesday, 25-Dec-2024 12:37:38 JST Foone🏳️‍⚧️

     in reply to

     • Fish Id Wardrobe

     @fishidwardrobe you're thinking of monobraking or linobraking

   • Fish Id Wardrobe (fishidwardrobe@mastodon.me.uk)'s status on Wednesday, 25-Dec-2024 12:37:39 JST Fish Id Wardrobe

     in reply to

     @foone Is lithobraking when you slow down by hitting a typeface?