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Quorten Blog 1

First blog for all Quorten's blog-like writings

Pentax K-1 camera notes.

360 degree cameras? They’re not all that impressive in 2018, are they? Indeed, the resolution pales in comparison to what you could get with a medium format DSLR camera with a fisheye lens. Oh, and Ricoh Theta is nothing compared to the DSLR cameras, that is for sure.

20180806/https://en.wikipedia.org/wiki/360-degree_video
20180806/https://en.wikipedia.org/wiki/Motion_sickness
20180806/DuckDuckGo Pentax Theta
20180806/https://theta360.com/en/about/theta/

Tool-assisted speedrun? Interesting, the point here is to use software tools to demo the otherwise impossible in video games, possibly taking advantage of glitches that require too precise of timing for humans to use while playing.

20180806/https://en.wikipedia.org/wiki/Tool-assisted_speedrun

What does Wikipedia have to say about glitches? Other than that they are considered more benign than bugs, not much. Both such terms can be applied to physical electronic systems. Of course, bugs are less of a problem in modern-day electronics than they previously were.

20180806/https://en.wikipedia.org/wiki/Glitch

In-game economics

2018-08-06

Categories: random-software  
Tags: random-software  

Interesting questions on in-game economics, very likeable to solutions like the gameplay of Monopoly.

20180806/https://gamedev.stackexchange.com/questions/162401/how-to-deal-with-scrooge-mcducks-in-my-fixed-currency-amount-game

Another interesting in-game versus real money question.

20180806/https://gamedev.stackexchange.com/questions/112760/what-makes-mmos-with-real-money-economies-legal?rq=1

How do you get multiple UARTs on a Raspberry Pi? Is there an elegant way to do this?

So, as it turns out, there isn’t. There is a single hardware PL011 and a software-assisted “mini-UART” that comes with limitations. If you want more than this, your best option is to use bit-banging on the GPIO pins. As it turns out, wiring up additional UARTs over I2C or SPI is more trouble than its worth. The best alternative if you want to connect more UARTs to the Raspberry Pi is through USB devices. Otherwise, there are other boards you can get that are better than Arduinos and Raspberry Pis in this respect, I heard they are called “mega”.

  • UPDATE 2018-12-09: “Mega” is the ATMega microcontroller, part of the AVR series. This is the same microcontroller that is used in Arduino. So, “get a mega” is just a more advanced way to be recommending an Arduino, at the component level.

20180805/DuckDuckGo raspberry pi uart gpio

This is great UART documentation here from the Raspberry Pi website.

20180805/https://www.raspberrypi.org/documentation/configuration/uart.md

20180805/DuckDuckGo raspberry pi multiple uart 20180805/https://raspberrypi.stackexchange.com/questions/3475/how-to-get-more-than-one-uart-interface
20180805/https://www.raspberrypi.org/forums/viewtopic.php?p=966034

Wide angle, narrow aperture photography. Smartphone or DSLR? Is there really an advantage to the DSLR if you are using small apertures and wide angles? As it turns out, there is. The advantage of using the DSLR is that by having a physically larger sensor, you can accumulate more light and therefore get lower noise photos. Sure, this might mean that you need to take longer exposure photos, but the point is that is definitely an option within reach when you have the larger sensor that can accumulate a larger charge and sample it at a higher resolution. With the tiny smartphone sensor, you’ll saturate much sooner, and will have to fare with higher noise photos as a compromise. There’s also the flip side: if instead you want to shoot at really high shutter speeds, go for the DSLR over the smartphone.

20180805/DuckDuckGo small aperture wide angle photography smartphone versus dslr
20180805/https://www.dpreview.com/forums/thread/4132450
20180805/http://www.digitaltrends.com:80/photography/smartphones-are-great-for-casual-photography-but-here-are-5-areas-where-theyre-still-lacking/

Wow, this is really interesting. Analog editing controls for photographic editing? Yeah, it turns out there are people putting them to those uses too, not just digital audio workstations. Of course, this is pretty expensive though, at $250 - $550.

20180805/https://www.dpreview.com/reviews/review-palette-modular-editing-controls

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Wikipedia article on DJGPP

2018-08-04

Categories: misc  
Tags: misc  

What does Wikipedia have to say about DJGPP? It was described as “aging” in 2004. Other than that, it doesn’t say that much about important users who used DJGPP for their products, like Quake, firmware upgrade images, etc.

Of course, nowadays I imagine that standalone firmware upgrade images will be running GNU/Linux nowadays, not FreeDOS + DJGPP.

20180804/https://en.wikipedia.org/wiki/DJGPP

Alas, these omissions have come from the hostile deletionist Wikipedia culture. The culprit can be traced down in the talk discussion and the history.

20180804/https://en.wikipedia.org/wiki/Talk:DJGPP
20180804/https://en.wikipedia.org/w/index.php?title=DJGPP&action=history
20180804/https://en.wikipedia.org/w/index.php?title=DJGPP&oldid=638460438
20180804/https://en.wikipedia.org/w/index.php?title=DJGPP&oldid=481858565
20180804/https://en.wikipedia.org/w/index.php?title=DJGPP&oldid=448168061

So you want to look for the great deleted contents of this article? Look here, in the history, at the biggest deletes.

I’ve carried this assumption for a long time. You can’t find 1990s era computers on Ebay. They’re simply not as iconic as 1980s computers. Now, is that really correct? Let’s validate that assumption.

Start by searching for a brand name of a 1990s era computer that’s documented on Ebay, TriGem. Indeed, my assumption was flawed. The verdict? 1990s era computer parts can easily be bought and assembled in piecemeal from Ebay listings. Finding a full 1990s era PC, on the other hand, is more difficult. There are several listings for TriGem floppy disk drives and hard disk drives, a few for motherboards, and I’ve only seen one for a full PC system with case.

But, the point in hand. My assumption was flawed. Indeed, it is possible for an ambitious collector to have the original historic system assembled and get a living system going.

20180804/DuckDuckGo trigem pc ebay
20180804/https://www.ebay.com/sch/i.html?LH_CAds=&_ex_kw=&_fpos=&_fspt=1&_mPrRngCbx=1&_nkw=trigem&_sacat=&_sadis=&_sop=12&_udhi=&_udlo=&_fosrp=1
20180804/https://www.ebay.com/itm/Vintage-TriGem-Intel-PII-233-MMX-32MB-2GB-HDD-1-ISA-Slot-Win98-Ethernet-NIC/332686533388?hash=item4d75a9a30c:g:DK4AAOSw2iJbItXl

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Very interesting GitHub article on why empathy matters here.

20180803/https://github.community/t5/Studies-in-Community/Why-empathy-matters/ba-p/10492?utm_source=newsletter&utm_medium=email&utm_campaign=ww-commcommunity-forum-aug18

Debunking myths! Different conditions here, autism and alexithymia. The point here is that alexithymia tends to be correlated with any mental disorder, “eating disorders, depression, substance abuse, schizophrenia and many other psychiatric and neurological conditions.” However, the diagnosis must be understood to be separate from all those other conditions. Autism and alexithymia are only correlated 50% of the time, so making the assumption means that you are wrong 50% of the time.

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Red Robin and barbershop music

2018-08-03

Categories: random  
Tags: random  

Red Robin? What does Wikipedia have to say about them? Oh, interesting. So they were started in Seattle, Washington, then they expanded elsewhere through franchising. So, that would explain their more high-tech systems in restaurant nowadays.

20180803/https://en.wikipedia.org/wiki/Red_Robin

“Barbershop music”? So, what is that all about? Well, reading carefully, apparently many barbers were historically also musicians. So that’s how they got their name.

20180803/https://en.wikipedia.org/wiki/Barbershop_quartet
20180803/https://en.wikipedia.org/wiki/Barbershop_music#Historical_origins


Another U.S. nation-wide thing that was started in Washington: Starbucks.