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Joined 1 year ago
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Cake day: June 14th, 2023

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  • Look for a server rack. Or, network rack if you don’t need it to be so deep (network gear tends to be less deep than servers). Navepoint and Startech are two companies that offer a variety, including ones with all metal sides.

    9u racks are ~40cm tall. Each 1u unit is a standard size for rack mount equipment.

    You will probably need to buy shelves separately. Pay attention to the depth of the shelf and its weight capacity. Typical ones will mount only to the front posts of the rack.


  • For flexibility and size I like external m.2 enclosures. I have some from Sabrent, Orico and Rosewill. Of them all the Rosewill is the smallest, has the nicest build quality, and seems to dissipate heat the best.

    So I would recommend a Rosewill 9SIA072GJ92919, and add an NVMe SSD of your choice.

    I think your MacBook is Thunderbolt 2, so you won’t get full speed but it should still be plenty fast. And this enclosure will give you TB3 speeds if you upgrade your PC later.







  • It’s not that one charging location was down. It’s that the current battery tech can’t charge in cold conditions without using some of its own power to heat the battery cells. This means people need to anticipate the cold and charge earlier and more often than they typically do.

    Those who didn’t were stranded.

    This is a real limitation of the current technology. Not a deal breaker for most people, but it’s a learning curve and a potential inconvenience.


  • Part of his Slav Epic

    http://www.muchafoundation.org/en/gallery/themes/theme/slav-epic/object/221

    It’s a huge canvas (~6m x 4m), and makes a massive impact when you see it.

    From that foundation page:

    "The Slav Epic’ cycle No.10: The Meeting at Křížky. The Magic of Words: Sub utraque (1419) (1916) Following his death at the stake for his teachings, Jan Hus became a symbol of the Czech fight against the immoral conduct of the Catholic Church. Increasing numbers of Czech clergymen began to turn their back on papal rule and to deliver their sermons in the Czech language. They were declared heretics by the Papacy and the Council of Constance ordered that they be removed from their parishes. Charles University in Prague was also closed to ensure that their teaching ceased. Riots ensued and Hus’ followers began to gather in remote places outside the city walls in order to mount their rebellion.

    Mucha depicts the most important of these gatherings which took place at Křížky, south of Prague, on 30 September 1419. Koranda, a radical preacher, called on Hus’ followers to take up their arms to defend their faith. He stands praying on a makeshift pulpit facing the throngs of followers as they arrive at Křížky. The dark sky above announces the imminent devastation of the Hussite Wars."


  • In terms of language you are correct. But in terms of SI usage it seems to me OP is expressing it correctly. The SI unit prefixes have a name, a symbol and a multiplier. The prefix is a concept that encompasses all three of those attributes. So “kilo” is one way of identifying the 10^3 unit prefix, but the name kilo is not the prefix itself. It’s just the name we use to refer to it. And the symbol k in km is certainly the unit prefix portion of that unit of measure.






  • I would put a small wired router in the cabinet. Then you can put further switches and APs wherever you need them in the house.

    How fast is your Internet connection?

    If you are ok with a pretty technical solution, the Mikrotik RB5009UG+S+IN would be a powerful but passively cooled option (it’s fanless) and a lot of ports for its size, and some ports >1Gbps. Basic setup is straightforward, but for more complex configurations there is a learning curve with Mikrotik. And they don’t have the best wireless AP solutions currently.

    TP-Link have their Omada routers, which pair nicely with their APs. You probably have room for one of their small routers and a switch in the cabinet.

    For APs there are lots of options. You can use on-wall ones in each room to provide wifi and a few Ethernet ports. The APs from TP-Link Omada, Ruckus, Aruba Instant On and Ubiquiti support vlans. In your office you will probably want a managed switch and an AP.

    Oh, and if you go with PoE APs you could go for the more expensive Mikrotik RB5009UPr+S+IN to power the APs. The included power supply can provide about 76watts to power downstream 802.3af/at PoE devices (like APs).


  • Focusing on reflective surfaces is challenging, so it’s not unusual to see refocusing like this.

    To me, the red and green during focusing look like it may be caused by longitudinal chromatic aberration. This is a color phenomenon common in lenses in front of, and behind the plane of focus. It is probably being removed by the camera software, but not instantly/consistently.