• 0 Posts
  • 1.62K Comments
Joined 11 months ago
cake
Cake day: December 26th, 2023

help-circle






  • I think it’s honestly a bit embarrassing after reading through this. It states that their “main engineering focus when designing this” was “the exoskeleton, a small chamber, and a platform for the future.” The exoskeleton is just a rectangular frame that nobody is going to give a shit about while printing and the small chamber means a small build plate along with it.

    The main feature they seem to be hyping up is the fact that it has a vent in the body so that you don’t have to crack the door open. This does feel a bit lame with the Bambu, but not anything I really care about at the end of the day.

    I’ve said it before that I do like Prusa represents as a company, but they’re really behind the ball at this price point.



  • No one said anything about permanently

    That’s exactly what Kessler Syndrome is though.

    Because that’s not how gravity works anyway

    This isn’t about gravity it’s about orbital altitude. Objects in HEO or Geostationary orbit can stay at those altitudes for hundreds to thousands of years which qualify as “permanently” for all intents and purposes.

    The thing you yourself quoted says it could take years for it to reenter. So that’s years of too much debris in LEO to launch anything safely.

    No, that just means they can stay up there for years, not that it automatically makes it unsafe to launch into orbit. This is like claiming a 50-car pileup in Des Moines makes it unsafe to drive in Los Angeles.

    I have no idea where you got the notion that Kessler syndrome means something like nothing can ever be launched again

    [From Kessler himself](https://www.nasa.gov/centers-and-facilities/white-sands/micrometeoroids-and-orbital-debris-mmod/#%3A~%3Atext=The+Kessler+Syndrome%2C(900+to+1%2C000+kilometers).

    This cascade of collisions first came to NASAs attention in the 1970’s when derelict Delta rockets left in orbit began to explode creating shrapnel clouds. Kessler demonstrated that once the amount of debris in a particular orbit reaches critical mass, collision cascading begins even if no more objects are launched into the orbit. Once collisional cascading begins, the risk to satellites and spacecraft increases until the orbit is no longer usable.



  • What heel-turn? I stated it isn’t possible for these to cause Kessler Syndrome and haven’t departed from that.

    I did read your links when you initially replied, and they don’t claim that they’ll cause Kessler Syndrome. Some of them dance around the topic with scary sounding premises but none actually state it because it’s impossible for something orbiting flying that low to be trapped in orbit for long just like an airplane with engines that die can’t maintain altitude and continue flying for long. You don’t need to be an expert in aeronautics or spaceflight to understand this because it’s basic physics.

    Yes I focused on that statement that you quoted because that’s what you quoted in your reply as proof it’s possible even though all it said was that more evasive maneuvers are happening as more of these satellites are put into orbit just like more cars will need to dodge debris in the road during rush hour than during the middle of the night when nobody is on the road.

    I didn’t post a list of flat earther links because neither one of us is arguing that the earth is flat. This statement was hyperbole to point out the flawed reasoning in thinking that your position is correct simply because you can find someone else stating the same thing (something those links don’t actually even do if the topic is Kessler Syndrome). Yeah, they can crash into something and cause debris, but they can’t be trapped up there permanently and prevent us from reaching space again because their orbit is so low.

    Will the space debris problem take care of itself?

    In low Earth orbit (below 600 km or 370 miles), the little atmosphere that is there will, over weeks, months, and years, drag the space debris low enough to reenter. Between 600 km and 1000 km (620 mi) it may take tens to hundreds of years for the debris to reenter.

    Starlink orbits at 342 miles so assuming the entire constellation exploded into debris, they’d only be an issue for as little as a few weeks and as much as a couple of years before burning up and clearing themselves out. Kessler Syndrome requires that something be in high earth or geostationary orbit to trap us on the planet permanently.

    https://aerospace.org/article/space-debris-101




  • “Right now, every six months, the number of maneuvers that are being made doubles,” said Lewis. “It has gone up by a factor of 10 in just two years, and if you project that out, you’ll have 50,000 within the next six-month period, then 100,000 within the next, then 200,000, and so on.”

    The number of maneuvers increased as they increased the number of satellites in orbit, which shouldn’t be surprising to anyone. To claim that this is going to follow an exponential curve approaching infinity is ignorant at best and disinformation at the worst because they have a hard limit on how many satellites they need. The guy you’re quoting qualified that statement with “right now” right at the beginning of the quote.

    In addition to this, an increased number of maneuvers has no bearing on whether these LEO satellites will cause Kessler Syndrome as you claimed in your previous comment. They’re in too low of an orbit to do that.







  • “Here’s what it has achieved”

    A list of money given to farmers, shipping companies, automakers, coal towns, energy companies, and anyone else responsible for all the pollution we currently face. It seems like they’re being rewarded for their misdeeds.

    Meanwhile oil and natural gas production is booming in the US to record rates: https://www.eia.gov/petroleum/wells/

    This is exactly the type of shit that I’m talking about. It’s just a bunch of virtue signaling while they funnel our tax dollars to wealthy corporations to be squandered away. You couldn’t actually point to anything specific that came out of this because it’s just a list of money doled out for abstract ‘causes.’ Even the author could only point to two specific examples, $120k to Eugene, OR to train people on brush removal after our wildfires and $118k for air monitoring equipment in a West Virginia town and that’s two years after handing out nearly $400 billion. This reminds me of all the times Democratic presidents have given hundreds of billions of dollars to companies like Comcast and Spectrum for jack shit.