The reason why the surface of the moon is partly visible here even though the sun is behind it is ... Earth shine!

From this great video about the Artemis mission photos https://m.youtube.com/watch?v=oaXRREHVkHo

#artemis #moon #nasa #earth #space #science #youtube #video

I've been enjoying some 1D chess today.

https://rowan441.github.io/1dchess/chess.html

It took me an embarrassing number of attempts to beat black.

#chess #game #hackernews

I don't think most people realise that by far the most dangerous part of the Artemis II mission is still ahead of them.

https://idlewords.com/2026/03/artemis_ii_is_not_safe_to_fly.htm

"No one has flown a segmented heat shield like this at lunar return speeds, let alone on a spacecraft this heavy. The substance of the OIG report was as alarming as the pictures. The OIG identified three issues that could potentially kill the crew on Artemis II..."

#artemis #nasa #space #moon #physics #science

The Crabapple tree is doing well this year.

#garden #tree #photo

I signed up for the Lone Wolf South West Backyard Ultra again, and very much look forward to it. With proper footwear this time I should be able to do more than my 13 laps from last year.

https://dynamicadventurescic.co.uk/lone-wolf-1

#running #runnersofmastodon #ultrarunning #devon

"This valorization of the new for its own sake has reshaped the scientific enterprise, privileging novelty over reliability and fragmentation over coordination."

I think this explains why bricklayers and plumbers earn more than most scientists now. At some point doing things differently doesn't add value.

I only read a few passages so far but the book seems very timely and well-written even when most ideas are not ... new.

https://www.openbookpublishers.com/books/10.11647/OBP.0507

#science #philosophy #books

Historically the leading reason for invoking the 25th amendment was colonoscopy, and removal of malignant growth from US presidents' butts.

The vice president temporarily assumed power in these cases. The US even had a female president for 1 hour and 25 minutes in 2021.

Unfortunately there is no clause in the 25th for what happens when the malignant object in the president's rectum is the vice president himself.

https://en.wikipedia.org/wiki/Twenty-fifth_Amendment_to_the_United_States_Constitution

#uspol #trump #vance #25thAmendment

You know "precision -- recall" are important metrics used in ML. You also know their order, ie it's not "recall -- precision". But you can never remember how they are defined? Here is a mnemonic.

In "The boy who cried wolf" everyone makes bad predictions. FIRST the boy has low PRECISION, ie low true positives relative to all cases flagged as positive, TP / (TP + FP). THEN the villagers have low RECALL, ie low true positives relative to all actual positives, TP / (TP + FN).

#ml #statistics

This made me laugh.

https://www.astralcodexten.com/p/links-for-february-2026

#acx #ssc #musk #ellison #yacht