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tericho commented on Software Engineering Within SpaceX   yasoob.me/posts/software_... · Posted by u/theanirudh
theanirudh · 6 years ago
I wonder how they manage not to have accidental taps on the touch screen during liftoff and or re-entry. As I understand there are a lot of G's and violent vibrations and I would assume it's hard to keep a steady hand?

(Atleast this is my understanding from watching Apollo documentaries/movies etc.)

tericho · 6 years ago
Watching the launch, I noticed they seem to have finger rests below the screens. I wonder if this is the reason.
tericho commented on NASA plans to launch a spacecraft to Titan   theatlantic.com/science/a... · Posted by u/the-enemy
disconnected · 7 years ago
To put it into perspective:

https://solarsystem.nasa.gov/moons/saturn-moons/titan/overvi...

According to this (at the time of reading) a one way trip at the speed of light is ~75 minutes, so you will have approximately two and a half hours of ping.

Ouch.

Still, it raises an interesting question: how would a hypothetical Earth-Titan network protocol work?

tericho · 7 years ago
Can't do much about the time it takes light to get here, so I guess the answer is we'd have to learn to love 75 minute ping :)
tericho commented on Jenkins Is Getting Old   itnext.io/jenkins-is-gett... · Posted by u/zdw
jennbriden · 7 years ago
Hello, I see a lot of great feedback in this post. I am a product manager working at CloudBees, the primary corporate sponsor of Jenkins. Jenkins is now in the Continuous Delivery Foundation as well.

While it is easy to bash on an inanimate object, there are some very dedicated and empathetic people who care deeply about the project. Some of those people do this work in their off-hours and some to this work as part of their daily work activities AND also in their off hours.

In that spirit, we want to make Jenkins better and created a separate group at CloudBees in the Product and Engineering teams late last year. They focus on open source work for Jenkins and on some proprietary things for CloudBees Core (built on Jenkins). We also have a dedicated user experience/product designer who started working on the project a few months ago. One of the first things he and I worked on was creating a curated, tailored version of Jenkins via the CloudBees Jenkins Distribution. This distribution will focus more and more over time on a guided workflow for continuous integration and delivery with Jenkins. These patterns will also be shared with open source Jenkins - some through direct contributions and others through suggestions (better plugin categorization, documentation, etc.).

Please use this comment thread to share your constructive, honest feedback about how we can improve Jenkins.

tericho · 7 years ago
> While it is easy to bash on an inanimate object, there are some very dedicated and empathetic people who care deeply about the project. Some of those people do this work in their off-hours and some to this work as part of their daily work activities AND also in their off hours.

I've been using Jenkins heavily over the past year since a client of our purchased the enterprise version. It was billed to me as a mature open source product that has been refined over the years by people trying to optimize their dev operations. While I'm sure some people really care about it, the user experience is so utterly disappointing it's almost impossible to imagine how it got to this state without neglect.

Even if you ignore all the complicated stuff, the web UI is embarrassing. While I don't suggest a "pretty" UI is necessary for devops, I would think you'd have a quick win just by having some people re-style the existing UI to make it look and feel like something built this century and not require a dozen clicks to get to important information. There are also bugs that are so painfully obvious it makes me wonder how they still exist. An example is if your Github branch has a slash in it (eg. feature/something) you get a 404 error if you try to navigate to that builds' results.

There are also features that appear to have almost no value yet are in the core UI and clearly took some time to build. The weather icons representing various permutations of previous build states is one ridiculous example that comes to mind.

I would respectfully suggest you run through some real world Jenkins experiences like the ones mentioned in the article. Also setting up a new server, configuring non-trivial SCM settings, debugging Jenkinsfiles, etc. To echo the article's sentiment - it feels like I'm constantly fighting with Jenkins to do what I need instead of being guided into a mature set of features.

Conversely - Octopus Deploy is a related product I have been using alongside Jenkins which has been an absolute joy to work with. Everything from initial setup to configuring its agent software on host servers has been straightforward. It has a simple, elegant UI that provides access to important information and actions where you would hope to see them. And most importantly - everything works. I have yet to encounter a bug or experience any broken UI states.

I'm glad to hear CloudBees is making some effort to improve things and I hope PMs like you continue to be involved in the community and solicit feedback, even if it's hard to hear sometimes.

tericho commented on Impact of a Night of Sleep Deprivation on Novice Developers’ Performance (2018)   arxiv.org/abs/1805.02544... · Posted by u/gyre007
afturner · 7 years ago
I think the punch line is that the last dude doesn't exist
tericho · 7 years ago
Hi I exist
tericho commented on Ask HN: Physicists of HN, what are you working on these days?    · Posted by u/sachin18590
physics137 · 7 years ago
I'll leave this here, since many comments are about the transition from physics to data science.

"For now, however, in hard-core physical science at least, there is little evidence of any major BD-driven breakthroughs, at least not in fields where insight and understanding rather than zerosales resistance is the prime target: physics and chemistry do not succumb readily to the seduction of BD/ML/AI. It is extremely rare for specialists in these domains to simply go out and collect vast quantities of data, bereft of any guiding theory as to why it should be done. There are some exceptions, perhaps the most intriguing of which is astronomy, where sky scanning telescopes scrape up vast quantities of data for which machine learning has proved to be a powerful way of both processing it and suggesting interpretations of recorded measurements. In subjects where the level of theoretical understanding is deep, it is deemed aberrant to ignore it all and resort to collecting data in a blind manner. Yet, this is precisely what is advocated in the less theoretically grounded disciplines of biology and medicine, let alone social sciences and economics. The oft-repeated mantra of the life sciences, as the pursuit of ‘hypothesis driven research’, has been cast aside in favour of large data collection activities [7]. And, if the best minds are employed in large corporations to work out how to persuade people to click on online advertisements instead of cracking hard-core science problems, not much can be expected to change in the years to come. An even more delicate story goes for social sciences and certainly for business, where the burgeoning growth of BD, more often than not fuelled by bombastic claims, is a compelling fact, with job offers towering over the job market to anastonishing extent. But, as we hope we have made clear in this essay, BD is by no means the panacea its extreme aficionados want to portray to us and, most importantly, to funding agencies. It is neither Archimedes’ fulcrum, nor the end of insight."

https://royalsocietypublishing.org/doi/full/10.1098/rsta.201...

tericho · 7 years ago
> And, if the best minds are employed in large corporations to work out how to persuade people to click on online advertisements instead of cracking hard-core science problems, not much can be expected to change in the years to come.

This is so sad

tericho commented on Ask HN: Physicists of HN, what are you working on these days?    · Posted by u/sachin18590
Anon84 · 7 years ago
> Not that physics has no theories, but I dropped out of studying physics myself over a decade ago, and at that time it felt a lot like the balance in physics has shifted towards having to measure and process disproportionate amounts of data with so much precision that has to be automated, or like you said do a ton of really complicated modelling. It feels a bit "stuck" that way.

The reason for is just how damn good all the Physics Theory is. People keep having to look closer and closer to try to find a place, any place, where the theory "fails" (in a sufficiently spectacular fashion) hoping that that might point the way to new phenomena and new theory. There's a giant multibillion dollar hole on the ground in Switzerland who's main purpose was to find a chink in the armor of HEP or help point the way to new theories. It failed spectacularly, but they're already talking about building a bigger one :)

tericho · 7 years ago
> It failed spectacularly, but they're already talking about building a bigger one

Awww it isn't that bad. They found the Higgs and at least verified we need to look at higher energy levels to find anything new.

tericho commented on Could 'Oumuamua be an icy fractal aggregate ejected from a protoplanetary disk?   syfy.com/syfywire/no-oumu... · Posted by u/Santosh83
dontbenebby · 7 years ago
One of the embedded assumptions I seem to see in discussions about this object is that objects like it (from outside the solar system) are rare.

Is this truly the case, or is it just hard to monitor the paths of the multitude of objects passing by earth?

tericho · 7 years ago
It is rare because other systems that form these objects are VERY far away (trillions of KMs). Imagine trying to slide a hockey puck from one end of a hockey rink to the other, but have it pass through a small (~1M) circle at the far end from you. If you took 1000 attempts even randomly, you'd probably hit the circle by accident at some point. Now someone else is also shooting at the circle, but they are 50,000KM away. Suffice to say no matter how many attempts that person takes, it will be significantly more rare to see their puck cross through the circle than yours.
tericho commented on New research says intelligent people are messy, stay up late, and curse a lot   higherperspectives.com/in... · Posted by u/thepsint
abnry · 7 years ago
How these things often go:

Headline: "Smart people do X"

"I do X, therefore I am smart!"

Oh the irony.

tericho · 7 years ago
To this point, here is the 2nd last sentence in the article:

> So, if you enjoy your swears, and being awake really late, and have a messy room, don't worry. You have a higher IQ than most!

tericho commented on Has Li-battery genius John Goodenough done it again? Colleagues are skeptical   qz.com/929794/has-lithium... · Posted by u/M_Grey
omginternets · 9 years ago
The promise of future trillions doesn't help when you need, say, 300k right now, not to mention that you can't pull requisite expertise out of thin air.

Again, replication is crucial. It's a Good Thing. It's just not a trivial thing that we can expect to "just happen".

tericho · 9 years ago
300k is nothing given the potential profit of this idea working. Tesla probably spends more than 300k on R&D every week.
tericho commented on GitHub Enterprise SQL Injection   blog.orange.tw/2017/01/bu... · Posted by u/urig
tericho · 9 years ago
It's hidden way down at the bottom, but I found the Timeline to be my favourite part :)

Edit: Can't see to format it correctly, just check the original source.

u/tericho

KarmaCake day220February 13, 2013
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