Recent content by collinsmark

Yep. ISBN (numbers) for books have a similar thing going on with the check digit. (ISBNs are book identifiers. They're useful for bookstores, book sellers, book readers, libraries, etc, to help avoid errors finding and ordering a specific book.) The check digit is the same idea as with the...

Thanks! :smile: Did I mention that Balboa Park also has a Natural History Museum? https://www.sdnhm.org/exhibitions/dino-jaws/

... Continued from previous post (this post is part 2 of 2). Figure 7. "Broken bulb." 50mm Summilux-M ASPH @f/6.8 Figure 8. Untitled. 50mm Summilux-M ASPH @f/5.6 I posted a pic of the above location just over a year ago, but this picture was taken at a different time of day (after sunset)...

November 2025 Balboa Park pics (Part 1 of 2) After running an errand in Balboa Park late Saturday afternoon, I decided to do some reconnaissance to search for a vantage point for a future photograph I'm planning. I found a good spot, but that photo will have to wait; the lighting wasn't right...

It's somewhat fitting, I guess. According to Norse mythology, the god Thor did go drag in the Þrymskviða (https://en.wikipedia.org/wiki/%C3%9Erymskvi%C3%B0a). (Sex and gender in Norse mythology were not wholly binary, as evidenced by the god Loki becoming pregnant and giving birth to offspring...

It's a sea lion. Its ear flaps are small, very small (like [pretty much] all sea lions), but present. https://becausetees.com/blogs/articles/sea-lions-vs-seals-what-are-the-differences-because-tees It's always a good idea to keep a good distance between yourself and the sea lion (or seal for...

I love photography and have for years. But I admit that the first time I learned about Robert Cornelius and deguarreotype portraits was actually from playing a video game. The video game is "Life is Strange."

Specifically for US borders: You could travel between US <==> Mexico or US <==> Canada with just a drivers license (no passport required) by air until ~2007 or by land/sea until ~2009. This passport requirement is a pretty recent thing.

What I meant to convey is that languages change over time. Sure you can define your terms for a specific document (as @Nugatory points out above), but expanding usage outside of use specific documents with well defined terms (e.g., a glossary), the general usage of any given common language...

Good luck with that, but chances of it sticking are virtually nil (if the past is any indication of the future). Language is chaotic and weird. Just think of how kids* commandeered the use of the word literally, making it an emotive, sarcastic synonym of figuratively. "My head literally...

Just be sure to use critical thinking when assessing robot advancement videos on TicTok, or any other social media platform for that matter. Check the source of the video. Check the source's sources to make sure it's all legit. While this may be good advice about any subject, it especially...

.. Continued from previous post. (Post 3 out of 3.) Figure 20. "I'm the one they should be scared of ..." This is one of my favorites of the night. Figure 21. Royals. Figure 22. This little guy was adorable. Figure 23. Nicely coordinated. Figure 24. Central Courthouse. It's attached to...

... Continued from previous post. (Post 2 out of 3) Figure 11. Angel and devil scrutinizing the evening's options. Figure 12. I missed focus by about a centimeter and a half on this shot. The Halloween eeriness shown through anyway. Figure 13. Corridor in the Myst Lounge. I'm pretty sure...

2025 Halloween pics here (post 1 out of 3). I brought my Noctilux 50mm f/0.95 ASPH to downtown San Diego, Gaslamp Quarter, for this. There are better lenses for the task. I know that. I knew I would blow potentially good shots by mis-focusing, or just miss them completely due to having a...

What's more I wonder how many youngins even know what C: is, now with everything on cell phones and such.