collinsmark's latest activity

Rip Borders Books. I so miss the days of browsing through their shelves and bring books to their coffee shop or sitting on comfortable...

I posted this in one of the math technical forum sections a few weeks ago, but didn't get much in the way of responses. In hopes of...

... Continued from previous post. This pic is not part of the events directly, but I did take public transit to and from them. I...

More puppies and stuff from the last couple of weeks of protests in San Diego. (It goes without saying that not all of my photos of the...

Frost on a windowpane: Nikon D810 + 55mm MicroNikkor + M2 extender w/ focus set at 1:1 reproduction ratio, 1/60s f/8 +2.7 EV, auto...

Photo of me after a four mile run at minus 32 deg F this morning. Frosty on the outside, warm on the inside. The ice buildup on my...

Now we get freezing rain: Nikon D810 + 55mm micro nikkor @ f/11, 3s ISO 200. I timed it to capture a car driving by. The water...

Redundancy

I'm not a big fan of atomic bombs but a couple of things strike me as.... funny isn't the word, absurd? I dunno... anyway.... These 3...

Here is a weird one: I have heard of "Butt breathing" in hibernating water turtles when I was a kid (I had several pet turtles). They...

Helix nebula. Is a planetary nebula, lies about 650 light-years, in the constellation Aquarius. Image taken with Seestar S50, from...

SEVERE GEOMAGNETIC STORM PREDICTED: A CME is approaching Earth, and it could cause a severe (G4-class) geomagnetic storm when it arrives...

Significant X-class Solar Flare and CME, yesterday ... (coming straight on us! ...) Space Weather News for Jan. 18, 2026 X-CLASS SOLAR...