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collinsmark's latest activity
collinsmark
reacted to
berkeman's post
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Collection of Science Jokes P2
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Oct 5, 2025
collinsmark
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BillTre's post
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Collection of Science Jokes P2
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Oct 5, 2025
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Andy Resnick's post
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Random Photos
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Weekend trip to Cincinnati, Ohio and while there, took a riverboat cruise. Straight jpgs (some cropped) from the camera, all shot using...
Oct 5, 2025
collinsmark
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Rive's post
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Random Photos
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The hike today. We started a bit late, without clear goals and schedule - and without a proper camera... Ended with revisiting some...
Oct 5, 2025
collinsmark
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Klystron's post
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RIP Jane Goodall (91), primatologist and conservationist
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I have a Jane Goodall anecdote that I think about often during these strange days. While visiting at Stanford University in Palo Alto...
Oct 5, 2025
collinsmark
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sbrothy's post
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Today I Learned
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..., while reading about "solderless breadboards", the wonderful term parasitic capacitance.
Oct 5, 2025
collinsmark
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DennisN's post
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Kitten Lovers: Cuteness Overload
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A lovely cat singing the blues :biggrin:: Cat Singing Blues
Oct 5, 2025
collinsmark
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jtbell's post
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Random Photos
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In Buchanan, Virginia I also visited the swinging bridge for pedestrians across the James River. Its stone piers were originally for a...
Oct 5, 2025
collinsmark
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DennisN's post
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Random Photos
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Some more shots... Sunset panorama (stitched, shot with Canon nFD 50mm f/1.4) A colorful sky (shot with Yashica ML 135mm f/2.8)...
Oct 4, 2025
collinsmark
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morrobay's post
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Random Photos
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Love that Deetroit Iron. Cars today look like made of electric shavers. Car show Jersey City.
Oct 4, 2025
collinsmark
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phinds's post
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Random Thoughts 7
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I found this particularly appropriate, given I was born in the early 40's Think about it! Many of our friends are no longer with us...
Oct 4, 2025
collinsmark
replied to the thread
Collection of Lame Jokes
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Oct 4, 2025
collinsmark
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Collection of Lame Jokes
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Oct 4, 2025
collinsmark
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jtbell's post
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Collection of Lame Jokes
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My wife found some postcards that I sent home from my old road trips, before the days of smartphones. (I was in Madison for the...
Oct 4, 2025
collinsmark
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Our Beautiful Universe - Photos and Videos
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The Jellyfish Nebula (a.k.a. IC 443, Sh 2-248) scooped up from my back patio, Feb. - Mar. 2025. The nebula is a supernova remnant found...
Oct 3, 2025
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