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Grendal's Recent Activity
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Grendal posted a new thread.
SpaceX F9 - Starlink V1.0-L21 - LC-39A
Launch Date: March 13 Launch Window: TBD Launch site: LC-39A, Kennedy Space Center, Florida Core Booster Recovery: ASDS Booster: Most...
Forum: SpaceX
Mar 5, 2021 at 10:30 AM -
Grendal rated AudubonB's post Like in the thread Mars and Off Planet Colonization.
Re-using aluminum is indeed utterly essential; my thoughts were that the amount arriving as the interplanetary analogue of conex...
Mar 5, 2021 at 10:23 AM -
Grendal rated Oil4AsphaultOnly's post Like in the thread Mars and Off Planet Colonization.
That would indeed be more mass efficient, but only for the outer container. It's a 7-month trip, consumables will occupy a significant...
Mar 5, 2021 at 10:23 AM -
Grendal rated LiveLong&Profit's post Like in the thread Mars and Off Planet Colonization.
Even the most optimistic scenarios would have Mars and other off-world habitats being utterly dependent on earth for many decades,...
Mar 5, 2021 at 10:23 AM -
Grendal rated AudubonB's post Like in the thread Mars and Off Planet Colonization.
Just as a clarification - not that it was written in the above post - but aluminum itself will not be available for extraction either on...
Mar 5, 2021 at 10:23 AM -
Grendal rated winfield100's post Like in the thread Mars and Off Planet Colonization.
The Chemical Composition of Lunar Soil | Some Meteorite Information | Washington University in St. Louis
Mar 5, 2021 at 10:23 AM -
Grendal rated AudubonB's post Like in the thread Mars and Off Planet Colonization.
Those lunar soil data present exactly my case: elemental aluminum is omnipresent. All you have to do to obtain it on the moon, or on...
Mar 5, 2021 at 10:23 AM -
Grendal rated AudubonB's post Like in the thread Mars and Off Planet Colonization.
I have, however, been re-thinking it overnight. It is not impossible that there is another way - one which also takes natural forces to...
Mar 5, 2021 at 10:23 AM -
Grendal rated Oil4AsphaultOnly's post Like in the thread Mars and Off Planet Colonization.
Al is easily recyclable. Given it's high conductivity, electric arc furnaces that turn parts of the cargo containers (I'm assuming that...
Mar 5, 2021 at 10:21 AM -
Grendal rated AudubonB's post Informative in the thread Mars and Off Planet Colonization.
A small number of posts in the Investor quagmire regarding the eventual forging on Mars of semiconductor chips prompted my thinking of...
Mar 5, 2021 at 10:20 AM -
Grendal replied to the thread SpaceX F9 - Starlink V1.0-L20 - SLC-40.
Updated.
Mar 5, 2021 at 10:19 AM -
Grendal replied to the thread SpaceX Starship SN10 experimental test vehicle.
Scott Manley's comment on it: [MEDIA]
Mar 4, 2021 at 12:18 PM -
Grendal rated bxr140's post Informative in the thread Fibre versus Starlink Discussion.
It is more or less broadcast as a cone, and when projected onto the earth at an angle--which is the case except for the instant the cone...
Mar 4, 2021 at 12:14 PM -
Grendal rated bxr140's post Like in the thread Blue Origin: Future Plans.
Except for just about the entire history of humans putting things into space. Failure has traditionally never been an option for any...
Mar 4, 2021 at 12:12 PM -
Grendal rated Cosmacelf's post Like in the thread Blue Origin: Future Plans.
According to Tom Mueller they blew up almost one hundred face shut off valves and associated engineering test hardware when designing...
Mar 4, 2021 at 12:12 PM