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Cake day: June 16th, 2023

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  • IFT3 was technically suborbital, but only barely. Like a couple hundred km/h short. Literally a couple of seconds longer second stage burn would have put it into a stable orbit. Or the same velocity just with a lower apogee. They intentionally left the perigee just inside the atmosphere so a deorbit burn was not required. This is also the plan for IFT4, iirc. I think they are talking about the bellyflop/suicide burn. It was not planned on IFT3, but is for IFT4.

    Both the booster and the ship have attitude control thrusters that you could see firing during the live stream of IFT3. Early prototypes used nitrogen cold-gas thrusters, but were planned to be upgraded to methane/oxygen hot-gas thrusters at some point. I don’t recall if/when they were.




  • rImITywR@lemmy.worldto196@lemmy.blahaj.zoneNoble rule
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    3 months ago

    The point is the “energy well”. That is the elements “in the middle” of the periodic table are more stable/at lower energy states. So fusioning heavy elements or fissioning light elements move to higher energy states, so it will take more energy in than it releases.






  • rImITywR@lemmy.worldtoLinux@lemmy.mlConsidering Starting Linux
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    5 months ago

    You don’t even need any hardware to get started. Fire up a virtual machine in VirtualBox or VMWare or use WSL. Start playing around, find a distro/DE you like and start learning.

    After some time, look into dual booting your existing machine. You can try this in a virtual machine first before making any changes to you hardware.