• 1 Post
  • 90 Comments
Joined 1 year ago
cake
Cake day: June 16th, 2023

help-circle



  • Destructive testing has always been part of every engineering development projects.

    When developing new parts it’s common to make a lot of test parts and stress them to failure to see how they react.

    For innovative design it can take several iterations before finding the right material/design. Each destructive testing is bringing valuable information.

    Knowing exactly how a part will fail gives extremely valuable information on how to build a part that will NOT fail and everyone does that including NASA.

    SpaceX has just brought this philosophy to whole different level by doing destructive testing on the whole rocket. The best example is that on the last flight they purposefully removed heatshields on some area of the Starship and added sensors in the area to see how it would impact the ship.

    The can afford to do that because they focused on building a rocket factory to mass produce starships rather than building a rocket. It means that even if they were not launching it the factory would still produce Starships.

    PS: SLS is not 10x the cost of Starship. According to an independent report ( source ) Right now the estimated cost of a Starship launch is estimated around $90 million, one the program is operational the cost of a Starship launch is estimated to be around $10 millions.

    A SLS launch is estimated to be around $4.1 billion

    So a Starship launch is 40 to 400 time cheaper than a SLS launch












  • The three core principles of scouting are:

    • Duty to God (adherence to spiritual principles, loyalty to the religion that expresses them and acceptance of the duties resulting therefrom)
    • Duty to others
    • Duty to self

    When asked where religion came into Scouting and Guiding, Baden-Powell replied “It does not come in at all. It is already there. It is a fundamental factor underlying Scouting and Guiding”. Source

    So unfortunately removing religion from the scouting would remove one of the core principle of the movement, I don’t think it would anytime soon.

    Which is a shame because I really enjoyed my time scouting, I think it was a great balance of fun, education and learning responsibilities. But the religion aspect of it make me seriously reconsider to send my kids to do it or not.