Azrael3000

Incandescent light bulbs are generally very inefficient in producing light, compared to LED for example. They produce a lot of heat and not much light for which they are made.

So in this context I suppose that gp implies that these threads don't provide much meaningful discussion but rather lots of hand waving.

Thanks for the background link. I did not know about that and it's a good incentive to donate them some money for the legal battle.

TL;DR of the link: No more uploads to support a court case in India which SciHub might win and thus establish a legal basis for operation in the biggest democracy.

Tech ingredients is also a fantastic channel

I disagree. If you are willing to kill a person why would you care whether the person willingly agreed to a donation? You could also just fabricate a letter of consent.

I live in a country with Opt-out and the only thing I think that should be changed is that you should be informed about it actively (e.g. a letter on your 18th birthday or so), even though that might reduce the numbers of donators.

I still remember reading all the Readers Digest books my mom gave me to read in the 90s that were from the 70s. The amount of excitement in these articles about colonies all around the solar system in the early 2000s captivated me. While reality proofed all of these predictions wrong the current Starship development brings back these fond memories and the exciting outlook on unparalleled developments in space in the somewhat near future.

Well a big question is also the future of their foundation. They have achieved a lot with it and helped a great deal of people around the globe. So a messy divorce would have quite a wide range of implications. So I share your sentiment.

As a European it seems funny to bash at NASA when at the same time the defense expenses in the US are several orders above the SLS cost.

I disagree. SLS has nothing to do with the Apollo program. It's built mainly from Shuttle parts, so everything they need is somewhat there already. If you compare that to SpaceX's starship which needed to develop a completely new engine from scratch, it's laughable how slow the progress is. But as somebody said it's a jobs program. And just because you need to manage a relationship with the government doesn't mean your engineers can't do a good job and there are clearly several issues (see e.g. https://mobile.twitter.com/SciGuySpace/status/13714885009027...)

Not quite as capable as Falcon 9 (16.kT to LEO, 5.2m fairing diameter) but it will certainly cut into SpaceX's cake once it is online.

While they are currently spending a lot of effort on recovering the 1st stage of the Electron via parachute the Neutron is going to land on a drone ship just like SpaceX does it. Clearly due to the different size of these two first stages.

Looking forward to their design, particularly the engines they will be using. Is there any info out there yet?

Finally a video by Rocket Lab: https://www.youtube.com/watch?v=agqxJw5ISdk&feature=youtu.be

Here's the video of the landing: https://www.youtube.com/watch?v=4czjS9h4Fpg

That is most certainly correct. They also mentioned that these are images from engineering cameras, so they are normally responsible for navigation. The real HD footage will come in over the next hours as the bandwidth just is not large enough.

Elon Musk needs to provide some Starlink sats for a better connection.

It's a great achievement with some really interesting work done on the landing algorithms with terrain recognition and it seemed to have worked exceptionally well.

Looking forward for the next landing in May of the Chinese rover and all the science these robots will produce. Also, the test of Ingenuity, the helicopter, will be very interesting to watch, that could really pave the way for a different exploration style in the future.

And finally, maybe the next transfer window will already see some Starships, that would really change everything.

The last point you make is only partially true. The Starship is using Methane and Oxygen and produces mostly CO2 and Water as output. Since they plan to produce propellant using the Sabatier process using renewable energy you get a nearly closed cycle. There's a fantastic video by EverydayAstronaut on Youtube about this topic.

Apparently it was sold as part of a liquidation, that's why it was so cheap.

I just started building a MPCNC, so I still have time to change one thing or the other, so I'll give your post a good read. Thanks for taking the time to write everything up.

In the German community Estlcam [0] seems to be used a lot. With a 50€ price tag it seems quite reasonable and it might be a nice piece of software to try out.

[0] https://www.estlcam.de/

The starship (what we saw yesterday) should have 3 sea level and 3 vacuum Raptors. The booster is currently scheduled to have 28 Raptors (some of which are fixed and some which can gimbal) although these numbers are subject to change depending on what kind of performance they can achieve in the end.

I agree. It's a huge issue for software dev companies as it is related to a non-negligible effort to keep your software working efficiently with a large array of GPUs. One potential workaround are libraries such as KOKKOS [0]. Of course it's never going to be as fast as pure optimized CUDA, but if it gets you half the way there, you'll still be faster than using the CPU. Particularly when considering that some of the new CPUs seem to have scaling issues themselves [1]

[0] https://github.com/kokkos/kokkos [1] https://www.pugetsystems.com/labs/hpc/Threadripper-3990x-64-...

Unfortunately writing a paper about implementing your new fancy algorithm (TM) in GIMP is hardly ever successful, so many of those die in some git repo.

I did an online shop for my in-laws due to the shutdown and it's working really great with Stripe and Woocommerce. So massive thanks for that.

We had one hick-up, which was the fault of a wrong PHP setting and we got several duplicate orders as a result. In the stripe dashboard I could clearly see failed webhooks in the post mortem. So if there were some kind of email alarm if an error threshold is exceeded that would be nice. I did not find any such feature, if I should have missed it please point me towards the right direction. Cheers.

As this paper is from 2015 and I can't claim to understand it, is the follow up paper by the first author [0] the reason why it actually doesn't work?

[0]: https://arxiv.org/abs/1808.00622

It should not be a competition about anything, instead all the efforts should be supported to solve the plastic issue, from reduction of use to clean-up.

And they are "easy" to build yourself. I wrote a guide about doing so here [0] which is based on this enormous head-fi thread [1].

0: https://github.com/Azrael3000/headphone-guide 1: https://www.head-fi.org/threads/my-diy-electrostatic-headpho...

I did my PhD in Civil Engineering and a 2 year postdoc in Austria (home country). I saw absolutely no future in academia, chances to get a permanent position were really slim and you could only go from one project to the other, which you had to hope to get funding for. Additionally, I was not happy with the group I was at.

So I decided to quit and found a new job at a small start up that is developing and providing consultancy for a CAE software. It was the best decision I ever made. I also did simulations during my academic life, but the pace has picked up significantly. I'm still at the forefront of research, but instead of pondering forever over minuscule details I'm now making stuff work. While the pay has not increased a lot, it's still better and I don't have to worry about getting funding, even though we do some research project, but if we don't get them it's not a huge issue. I have quite a diverse range of responsibilities including some managerial duties and I have grown and learned a lot in the past two years.

To sum up, it was great to leave and I wouldn't return unless I would be offered a professorship. I was extremely lucky with the company I work at and I think being in a small company allows to not just be another number in the system but actually contribute in many different ways. Obviously you need to have the right kind of people (incl. bosses) for that to be possible. Clearly, in a small company the human component is a crucial one.