collinsmark's latest activity
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Some shots from the Swedish city Lund, and a place called Jakriborg... Old houses in the central part of Lund: Street view from Lund...
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Looking the other way towards Market street. Outside Manchester cathedral.
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Two drummers last night at the Flowerpot in Derby, me a lefty and the righty had a rack so no chance of sharing. So, two kits. The stage...
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In case you all haven't noticed, Halloween is coming! I don't remember whether these are the same as last year, or whether those blew...
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collinsmark replied to the thread Today I Learned.Yep, fitting algorithms can sometimes push precision limits. But beware of overfitting. Not only does overfitting waste computational...
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Sprinkles is now 20 weeks old (at the time of this posting). She needs exercise. Being an indoor kitten, this falls to us. I am...
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collinsmark reacted to Andy Resnick's post in the thread Our Beautiful Universe - Photos and Videos with
Like.
Very cool! I ask because a while ago a friend asked me for recommendations on a 'starter telescope for someone who doesn't know what to... -
collinsmark reacted to DennisN's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Another Moon shot... I was out doing a test run with my telescope on September 5 2025 before the lunar eclipse on September 7. Here's...
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Hey all. Looks like my 15 year anniversary of joining PF happened yesterday (while my internet was down). Just wanted to say thanks to...
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Two conspiracy theorists walk into a bar. You can't tell me that was just a coincidence.
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Speaking of tires... :smile:
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collinsmark reacted to Stavros Kiri's post in the thread Stargazing Solar Activity and Space Weather Update thread with Like.
For Th Sept 11, 2025 GIANT BUTTERFLY-SHAPED HOLE IN THE SUN'S ATMOSPHERE: A 500,000-km wide coronal hole has opened in the sun’s...
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collinsmark replied to the thread Programming Jokes: Lame, Science & Math Jokes!.(Source: https://explosm.net/comics/how-pretty#comic)
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