SpaceX
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
Just like landings have become routine, it appears manned dragon launches are boring now too. There are news articles but buried at the bottom of pages. No one here is discussing it and honestly not even much in the main sub either. Just thought it was curious!
Join r/WorkReform! Fight for a good quality of life for everyone who sells their labor!
Welcome to r/SpaceX, the premier SpaceX discussion community and the largest fan-run board on the American aerospace company SpaceX. We recommend using r/SpaceX with Old Reddit. This board is not an official outlet for SpaceX information.
Welcome to r/SpaceX, the premier SpaceX discussion community and the largest fan-run board on the American aerospace company SpaceX. We recommend using r/SpaceX with Old Reddit. This board is not an official outlet for SpaceX information.
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
Free trade, open borders, taco trucks on every corner. Please read the sidebar for more information.
This sub is dedicated to discussion and questions about embedded systems: "a controller programmed and controlled by a real-time operating system (RTOS) with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints."
I recently got a coding assessment for a sensor firmware position at SpaceX and pretty much bombed it. I wanted to outline what the assessment was and to ask if it seems more like a “Leet Code” type question or if you think it was something that is good to vet for a position like this?
Some additional background. I had an initial phone screen to talk about my background and work history with the recruiter and then moved on to a technical phone screen with the team manager and a senior engineer. That phone screen was very good in that both asked probing questions about basics of bare-metal development and also a good bit on signal processing, filtering, and sampling since it was very relevant for their teams job of sensor development. Both interviewers were asking really good questions and I felt like I was being asked about stuff relevant for the job. I thought I had bombed that part because I only vaguely knew about the signal processing stuff way back from uni days but seemed to do well enough that I got the take home assessment.
The take home assessment itself was coding done in either C or C++ (your choice). It was a gene sequencing program where you’re given a file that contains a long sequence of nucleotides (A, T, C, G) along with spaces, new lines, other irrelevant characters or numbers. You need to read the file, detect the start codon (ATG), process it codons following that start codon until you hit an end codon (3 possible codon combinations, I forget what they were). As you’re reading and processing the gene you need to translate the codons to the appropriate amino acid (you’re given a translation table in the problem statement and can also look it up online) and basically construct the protein (amino acid combination, another series of letters/characters) based on each three letter codon with in an appropriate gene (defined by a proper start and end codon). Then the final output should be the protein, the gene sequence (with start and end codons) that it got translated from (and there could be one or more genes with slightly different codons that map to the same protein so you need to list all of them), and the number of times that protein appears.
All of this should work within O(N2) time. And you’re given 6 hours to complete the program with the first hour given to write up a plan for how you’re going to code it and estimate the big-O performance.
I chose to do it in C and build up a linked list of the full sequence and then do a one time traversal through that linked list and build out another linked list of the protein, associated gene(s), and gene count….and botched it badly because of confusion with managing the multiple linked lists head node. (One big take away for me is that my C coding really needs to be stepped up).
My question (from before) is do you guys think this is more of a “Leet Code” style question or something that is fair for a primarily bare-metal position? (I even asked about RTOS use and they said it’s not as much).
I’m not complaining about this as it was pretty fun honestly and at least I know I need a lot more work on my C now. But I wanted to get other peoples thoughts on this.
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
Podcast with Australian psychologist, Matthew Browne, and anthropologist, Chris Kavanagh. From their site description: "[...] a close look at the contemporary crop of 'secular gurus', iconoclasts, and other exiles from the mainstream, delving into their unique insights and galaxy brain takes." Charitable, thoughtful, sometimes goofy criticisms and discussions pertaining to the "forbidden" ideas and concepts explored by the "IDW" and the like.
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
I sometime think the long term prospect of SpaceX.
Many thing can happen in long term. Even though we do not want it, and god forbid, there could be a astraunauts launch fail. As they have really high launch manifest, it also increases the probability of a launch failure.
Elon could die in accident or may decide to retire. There might be some event like boeing or something else.
What do you think will happen in 20 years time frame? Many big company/industry leader died over long term. Do you think SpaceX will be around long term?
Welcome to r/SpaceX, the premier SpaceX discussion community and the largest fan-run board on the American aerospace company SpaceX. We recommend using r/SpaceX with Old Reddit. This board is not an official outlet for SpaceX information.
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
Subreddit dedicated to the news and discussions about the creation and use of technology and its surrounding issues.
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
r/Starlink is for news, media, and discussions related to Starlink, the SpaceX satellite internet constellation. This is a fan-run Subreddit. For official news and to sign up for service, visit starlink.com
I've always wondered how Dishy knows WHERE to point RF beams.. especially when it's on boats and cars. Old timer dishes needed to be aligned very precisely by an installer to fractions of a degree in angle. Meanwhile the Starlink satellites are moving all over the sky! Yet you can pick up a Dishy from Costco, point it anywhere and turn it on, and it works. It can't possibly know where the satellites are years in advance? So how does Dishy connect to Starlink satellites in seconds when you plug it in?
We also know the Dishy works in GPS-denied environments like Ukraine.
A new SpaceX patent explains,
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
-
Welcome to r/SpaceX, the premier SpaceX discussion community and the largest fan-run board on the American aerospace company SpaceX. We recommend using r/SpaceX with Old Reddit. This board is not an official outlet for SpaceX information.
members -
Welcome to r/SpaceXLounge, the sister subreddit to r/SpaceX, and a place for relaxed and laid-back discussion. We recommend Old Reddit with r/SpaceXLounge. This subreddit is not an official outlet for SpaceX information.
members -
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
members -
r/Starlink is for news, media, and discussions related to Starlink, the SpaceX satellite internet constellation. This is a fan-run Subreddit. For official news and to sign up for service, visit starlink.com
members -
Subreddit dedicated to the news and discussions about the creation and use of technology and its surrounding issues.
members -
members -
We are not SpaceX, we are Space-X. We are a group that is trying to get rid of Outerspace. We hate space. Join us. We want to fill in outerspace or something.
members -
a subreddit all about space travel (NASA, Roscosmos, SpaceX, ULA, Boeing, Rocket Lab, etc.). To infinity and beyond!
members -
A subreddit devoted to the field of Future(s) Studies and evidence-based speculation about the development of humanity, technology, and civilization. -------- You can also find us in the fediverse at - https://futurology.today
members -
The most amazing place on reddit! A subreddit for sharing, discussing, hoarding and wow'ing about Dogecoins. The much wow innovative crypto-currency.
members -
News on SpaceX's Starship and Superheavy architecture currently in development! This is a fan run site.
members -
/r/Starlink_Support is for questions about the Starlink satellite constellation. General Starlink news, media, and discussions should be posted to /r/Starlink. All other SpaceX content should be posted to /r/SpaceXLounge. Visit Starlink.com to sign up. Reminder: This is a fan-run subreddit. It is not an official Starlink website. For official Starlink news and information, please visit Starlink.com
members -
The Kerbal Space Program subreddit. For all your gaming related, space exploration needs. http://kerbalspaceprogram.com
members -
The place for news articles about current events in the United States and the rest of the world. Discuss it all here.
members -
r/NASA is for anything related to the National Aeronautics and Space Administration; the latest news, events, current and future missions, and more.
members -
The Mars Society is the world's largest and most influential space advocacy organization dedicated to the human exploration and settlement of the planet Mars. Established by Dr. Robert Zubrin and others in 1998, the group works to educate the public, the media and the government on the benefits of exploring Mars and creating a permanent human presence on the Red Planet.
members -
Welcome to the official subreddit for Spaceflight Simulator, a game about exploring our local space with rockets you build!
members -
The original and largest Tesla community on Reddit! An unofficial forum of owners and enthusiasts. See r/TeslaLounge for relaxed posting, and user experiences! Tesla Inc. is an energy + technology company originally from California and currently headquartered in Austin, Texas. Their mission is to accelerate the world's transition to sustainable energy. They produce vertically integrated electric vehicles, batteries, solar, and AI software and hardware solutions.
members -
Memes! A way of describing cultural information being shared. An element of a culture or system of behavior that may be considered to be passed from one individual to another by nongenetic means, especially imitation.
members -
The goal of /r/tech is to provide a space dedicated to the intelligent discussion of innovations and changes to technology in our ever changing world. We focus on high quality news articles about technology and informative and thought provoking self posts.
members