kataklasm

Yea this is definitely a setup issue. Everything looks soft in his DSLR scans, probably an issue with the depth of field. I used to DSLR-scan 6x8 medium format and while it was a major PITA the results were phenomenal [1,2]. With stitching and a high enough magnification you can easily pull up to 800 Megapixels or more out of medium format frames. Without a 1:1 magnification (while the lens was able to magnify 1:1, my setup wasn't able to accomodate the focus distance adequately so I was more in the ballpark of 1:1.8 or 1:2) I was able to stitch frames into 300+ Megapixel images with about 16 or 20 individual images making up the mosaic.

The key to great DSLR scanning is a proper, high-quality light table (I built my own) and a high quality macro lens (high quality != expensive). Adobe Lightroom always worked best for stitching, Adobe Photoshop and others had some issues for some reason. Cleaning dust off as much as possible before taking the mosaic images is vital to reduce post-processing time.

If you've got a good workflow and don't have to scan hundreds of frames a week it's a great process that's a great deal cheaper, gives better results than even drumscanning if done properly and can be faster than having a lab scan it for you.

Here's an example of a 6x8 DSLR scan. Taken with a 20MP Sony DSLR with 60mm (90mm FF equiv) macro lens by Tamron. Downsampled to 13MP image resolution from the 300+MP scan mosaic because that original mosaic file was about half a gigabyte in size. 1: https://bear-images.sfo2.cdn.digitaloceanspaces.com/marius-1...

Here's one taken as a single frame with the Sony DSLR without any stitching. 2: https://bear-images.sfo2.cdn.digitaloceanspaces.com/marius-1...

Have you seen the domains Microsoft uses? Half the time I am not sure if they are genuine or not, it's actually crazy. Sometimes they use .com, other times .ms. Sometimes Microsoft is in the top-level other times it's in the second-level. Sometimes they have no subdomain, sometimes they have two. It's utterly inconsistent and it's insane to me how close some of them look to actual phishing domains...

Same thing for bicycles btw. Strobing rear lights are allowed as long as they are on your person (i.e. clothing/helmet or backpack), only on the bike itself they are not permitted.

I agree with the underlying logic here. However, when street maintenance trucks are driving around normally with their extremely bright orange strobes enabled (mind you, not parked in the street doing repairs, I'd totally understand that! Oftentimes they are just driving normally with the strobes on) I fail to see the logic applied consistently. In my opinion a good compromise for cyclists would be to allow strobing rear lights that only have power cycle of at least 90% and power periods of at least 2500ms, meaning they are on for 2500ms and then off for ~280ms, creating a strobing effect that is not as overpowering as normal strobing rear lights, which I'd agree are overbearing in commute traffic.

Those planet/satellite animations are absolutely gorgeous!

Why focus on just student/professor-written blogs? In that field especially a ton of extremely knowledgeable and experienced people don't have degrees.

Regardless, here's a (no longer existant, unfortunately) blog by a then-master's student that has some real gems: https://web.archive.org/web/20220815052151/https://owlspace....

I especially loved the Steam login blogs.

edit: this is his current blog: https://space.eulenbu.de/

Oh wow! Did not expect you here, but it makes sense. You were the reason I started building my own ukuleles at the age of 14 or so. They became quite amazing after the third one ;-) Thanks a ton for your work and have an amazing day, Matthias!

i used QB for years and loved it but eventually i couldn't stand not having uBlock Origin anymore.. shame there's not a good adblocker for QB

You should reread parent's comment before posting such agitated commentary.

It's not often you see a take this bad on HN. Wow!

You are aware Facebook tracks everyone, not just people with Facebook accounts, right? They have a history of being anti-consumer in every sense of the word. So while I can understand where you're coming from, it's just not anywhere close to being reality.

If you want to or not, if you consent or not, Facebook is tracking and selling you.

While I see your point and how OPs comment could be interpreted that way I don't think that is how he meant it. I read it more along the lines of your sibling comment, I.E. "I can't believe I am getting paid a ton for little work while others are slaving themselves away" in a shameful sense, not a bragging sense.

Yes, I'd love to hear some stories!

Look into gnu stash

Not a stall but it might've been loss of control due to aerodynamic forces and effects. There's two that come to mind when talking about leaving a loop too fast like what seems to be the case here.

There's control lockup, where the aircraft is flying so fast that the mass flow of air over the control surfaces is so high that the controls "lock in place" or "get stiff", meaning the force you can apply to your rudder stick in the cockpit isn't enough to overcome the forces acting upon the control surfaces.

Then there's control compression, where the airflow around the wing is so fast that the local airflow around the airfoil becomes supersonic (aircraft as a whole is still subsonic) and detaches after the point of maximum airfoil thickness, leaving no laminar flos for the control surfaces to work with. This will feel different in the cockpit, instead of the controls becoming stiff they get loose but no control authority is achieved because your control surfaces are in fully turbulent flow.

Both of these phenomenon were a big issue in WW2 during dive attacks, since enocuntering or even going beyond the max aircraft speed was common during dive attacks, you wouldn't be able to pull out of the dive and go straight into the ground at very high speed. Either of these could've been an issue for Anders.

you dont know about [H] then?

Maybe you should read about that again, because you obviously don't know what you're talking about ;-)

The A-12/SR-71 was leaking fuel while it was sitting on the apron/ramp, because due to the insane heating that occurs at Mach 3 you have to compensate the heat contraction of your tanks and everything else. So while they do leak on the ground, as soon as they start getting anywhere close to operating speed and the structure thus heats up, everything seals shut. No leaking midflight. The Skunk Works director Ben Rich (who took over after the original director Kelly Johnson stepped down) wrote a book called "Skunk Works: A Personal Memoir of My Years at Lockheed", it's a good read.

We are already doing that. A orbital mechanics maneuver used in deep space spaceflight called a gravity assist or slinghshot trades a cosmic object's kinetic energy to change a spacecraft's flight path. Since that takes a large amount of energy at the speeds spacecraft go, an equal amount of energy must get subtracted from that object. Of course, the same amount of energy that's very significant for a spacecraft is meaninglessly small for an object such as a natural satellite like the Moon or a planet as Jupiter. So if you slingshot around Jupiter you are altering Jupiter's orbit around the sun an almost infinitesimally small amount, but you are altering it.

But of course, the question was asking for a significantly altered orbit, which this most definitely isn't.

I just discovered Team Scheisse a week ago (they are from city!) and now I come across them on HN, what a coincidence (obviously this might be the Baader-Meinhof-Phenomenon at play but since they are a comparatively small band I would say the effect is rather small)!

Modern day tech often reaches spaceflight circles decades after it becomes ubiquitous in normal use. For spaceflight purposes it is extremely vital that any and all components and tech is matured amd that takes a long time. Add in a ton of certification and paperwork processes and there you go.

Just as much as by the equivalence of software developer and software engineer. Both are a misuse of the term "engineer". Maybe one more than the other, but still.

You're right, but it's not Kagi Search that is doing the robbing: it's all the ad-tech aggressors of the last decade plus.

Are you implying techies are engineers? They are not. Just like accounting isn't engineering. Engineering is engineering.

I don't have (n)vi(m) open right now but I think this only applies to prepending spaces. For prepending tabs, 0 will take you to the first non-tab character as well.

That's partly because the drag effect of the atmosphere depends on the solar activity. Meaning, depending solar activity an object will start aerobraking higher up or lower down in the atmosphere. That of course drastically impacts the time it takes the object to fall out of orbit and since we can't really predict solar activity we cannot precisely predict when nor where this battery pack will hit the ground.

On mobile it barely loads the tweet for me, doesnt load any of the responses and if I go to the author's profile I get blocked by a login-wall.

So no, "x" is not perfectly easy to use, it's utter garbage.

I've been using various tools and configs regarding this for years now, with tons of my own modifications to them. These write-ups and corresponding repositories are of great value to the vim/LaTeX community and Gilles' loss is tragic.

Rest in peace, you won't be forgotten.

Unfortunately, a whole lot (the vast majority) of enterprise engineering software is Windows-only. Be it Patran/Nastran, most of the Autodesk lineup or lots of others.

I don't know if US Space Programs is the end-all be-all argument you think it is, looking at Orion and SLS.

And you are plastering this exact message all over these threads here. Makes it seem like you have an agenda? Do you have an affiliation with Politico/Axel Springer?

The political corruption and and election meddling done by Axel Springer is a known fact. [0]

Excerpt from [0] translated with DeepL:

  "Our last hope is the FDP. Only if it becomes very strong - and that may be - the green-red disaster will be avoided. Can we do any more for them. The only ones who are consistently positioned against the Corona Measures madness. It's a patriotic duty."

[0] https://archive.is/g8RMu

I have found this software to be very unintuitive with bad UI/UX, unfortunately. The utility of the software is good amd it fills a vital gap for concurrent engineering, but UI/UX needs to be improved badly.