I worked with QNX 4 at uni and we built a robot system based on 2-4 networked 486/Pentium CPU cards in a rack with it [1].
We fully used the OS to make our robot system both hard real-time and completely network based using QNX's native capabilities. This gave me a deep understanding of those issues in my later career in robotics systems and I basically recreated - tediously - most of its features with UDP, TCP/IP and various IPC (inter process communication) features on vxWorks, SunOS and Linux.
One feature of the OS I fondly remember was that the most basic system calls (send/receive/reply) were implemented as about 3 inline assembler instructions each directly in the header file (qnx.h ?).
AND no dust, grime, etc. These tiny wheels get dirty and clog up pretty fast in human environments and then stop to work and need a good cleaning. Nice for demos but unsuitable for even normal research lab work. I hate them.
Hmm, Kalkar, the only nuclear power plant I ever protested - in the late 70s when I was still in school and construction had just begun. It was finished in 85 but never even fueled due to safety concerns (liquid natrium is nasty, state government did not authorize operation), protests and significant doubts about its purpose (breeders are most suitable to produce bomb material and nuclear fuel).
Chernobyl happened 1986 and probably put the last nail in the coffin, when its radioactive material spilled over Germany and people were recommended to stop eating mushrooms, game animals and homegrown salad. I was doing my nuclear physics practical at the Uni at the time and our lab offered food measurements as a public service, so people brought their homegrown vegetables, fruits and milk. Highest measurements were always the grass in front of the institute though. Much higher than in the "neutron lab" I was working in at the time.
1991 Kalkar was finally officially abandoned and later sold to a private investor.
> Philosophy at the end of the day is about arguing a point; it isn't about producing an aesthetic experience.
I'd argue that point. Nietzsche's "Also Sprach Zarathustra" (Thus Spoke Zarathustra) comes to my mind first. Art contains and conveys truth.
Nietzsche's work is also a good example about why it's foolish to argue too much about what an author meant. He wasn't always clear in his thoughts - just like us all - and his thinking changed considerably anyway.
Erm, no, I don't think so. Can you give a source for that claim?
Medieval wars were in general shorter, more regional, used much smaller forces and affected the civilian population less than in later ages. Of course it is very difficult to give any numbers, but various infection diseases, childbirth and infant death were major causes of death. (E.g. women life expectancy overtook that of men only in the 19th century.) Also at least in the 13th and 14th century in Europe main reasons for a significant temporary population decline - during a time of general population growth - were black death and hunger, the latter being partially caused by limitations to agriculture technology and available land.
Hmm, but this is a very common problem particularly in history and archaeology and one that requires highly specialized expertise. Therefore almost always a modern unified calendar is used in new publications and the problem of dealing with historical dates as written is left to specialists. I don't think every article about per-modern events and events outside Gregorian-based calendar usage should mention that.
The term was also new to me. From [1] I understand it is a class of cryptocurrency scams starting by building a cordial relationship via social media or dating apps and then suggesting financial investment.
Interesting. I didn't notice the side notes at all because I immediately zoomed my view to only see the main text as I do with all web pages in this day and age.
To the contrary there is very good evidence that we pull arbitrary explanations whenever needed. See Gazzaniga's split brain experiments where people gave all sorts of reasons when asked why they did something and just could not know.
One feature of the OS I fondly remember was that the most basic system calls (send/receive/reply) were implemented as about 3 inline assembler instructions each directly in the header file (qnx.h ?).
[1] https://herbert-janssen.de/paper/irini97-12.pdf