Tootfinder

iPhone 17 Pro teardown: the anodized aluminum scratches badly around the camera plateau edge, the screwed-in battery is a cool repairability upgrade, and more (Elizabeth Chamberlain/iFixit News)
https://www.ifixit.com/News/113388/iphone-17-pro-teardown

The Science Behind Scratchgate and What It Means for Repairing the iPhone 17 Pro
The anodized aluminum finish on the brand new iPhone 17 Pro is gorgeous, right up until it meets your keys or a stray coin bouncing around in your pocket.

I often think it is a disservice that climate change activism has focused on suffering and changes "over there" - our natural environment and cultural life will be as impoverished just as much by loss of familiar species and traditions as the Inuit hunting narwhal or Pacific Islanders forced to retreat from their coastlines.
https://mastodon.scot/@Kerplunk/115241857960561419
Kerplunk@mastodon.scot - @…
We will not just mourn the Beech, the wonderful white lady of the Forest, the Birch is also suffering badly.
No more collecting birch sap in the spring,
making syrup or sugar, no tea from leaves and bark, no bark for starting fires, making knife handles, boxes book covers ornaments. No more wood to make a traditional Kuksa (cup) bowls and toys. No making Birch tar or pitch, no forests in the north where Chaga and many other mushrooms to grow.
I mourn the loss of every tree.

Ukraine says it has now deployed 30K free physical security keys, called YubiKeys, including 22K to access battle system Delta, up from ~10K in April 2022 (Katrina Manson/Bloomberg)
https://www.bloomberg.com/news/newsletters

Toward an African Agenda for AI Safety
Samuel T. Segun, Rachel Adams, Ana Florido, Scott Timcke, Jonathan Shock, Leah Junck, Fola Adeleke, Nicolas Grossman, Ayantola Alayande, Jerry John Kponyo, Matthew Smith, Dickson Marfo Fosu, Prince Dawson Tetteh, Juliet Arthur, Stephanie Kasaon, Odilile Ayodele, Laetitia Badolo, Paul Plantinga, Michael Gastrow, Sumaya Nur Adan, Joanna Wiaterek, Cecil Abungu, Kojo Apeagyei, Luise Eder, Tegawende Bissyande

Toward an African Agenda for AI Safety
This paper maps Africa's distinctive AI risk profile, from deepfake fuelled electoral interference and data colonial dependency to compute scarcity, labour disruption and disproportionate exposure to climate driven environmental costs. While major benefits are promised to accrue, the availability, development and adoption of AI also mean that African people and countries face particular AI safety risks, from large scale labour market disruptions to the nefarious use of AI to manipulate public o…

Time Crystals in Actively Mode-locked Lasers
Ruiling Weng, Elias R. Koch, Jes\'us Yelo-Sarri\'on, Josep Batle, Neil G. R. Broderick, Julien Javaloyes, Svetlana V. Gurevich
https://arxiv.org/abs/2509.09230

Time Crystals in Actively Mode-locked Lasers
We report the first experimental observation of discrete time-crystal phases and crystallites in an actively mode-locked semiconductor laser. By tuning either the bias current or the modulation frequency, the system undergoes a spontaneous symmetry-breaking transition from the harmonically mode-locked state towards robust, highly coherent time-crystal states that persist indefinitely. Two equivalent time-crystal configurations, shifted by one driving period, can coexist as domains separated by …