Hackaday – More On Wave Overhangs for 3D Printing

Aug 202026
 

We’ve heard of wave overhangs before. It is a new technique for printing horizontal overhangs with no supports. Building on some other techniques like arc overhangs. The idea is to teach the slicer not to try to draw overhangs in the middle of free space. Instead, when the slicer realizes there is a horizontal overhang, it tries to “grow” the overhang from the main part. You can see an overview in the video below.
For example, imagine printing a letter ‘T’ vertically. The stem of the T is no problem, but when you try to print the arms it will normally need support. But if you could just print the arms starting at the stem with slight…

External feed Read More at the Source: https://hackaday.com/2026/08/16/more-on-wave-overhangs-for-3d-printing/

 2026-08-20  No Responses »

INDY Week – Op-Ed: Wake County’s Buried Past Deserves Daylight

Aug 202026
 

Most of us know what surrounds our homes: the schools, parks, shopping centers, and roads. But many Wake County residents may not know what lies beneath some of them. North Carolina’s official inventory identifies 34 pre-regulatory landfills and dumps in Wake County. These are not simply the large, modern landfills most of us picture. The list includes old municipal dumps and private disposal sites in Raleigh, Cary, Apex, Garner, Holly Springs, Fuquay-Varina, Morrisville, Knightdale, Wake Forest, Rolesville, Wendell, and Zebulon. Recorded locations include Wade Avenue, Capital Boulevard, Dorothea Dix, Bass Lake Road, Newspaper Way, and residential or commercial properties. That does not mean every site is dangerous. It does mean we should know which sites have…

External feed Read More at the Source: https://indyweek.com/firstperson/commentary/op-ed-wake-landfills/

 2026-08-20  No Responses »

New on MIT Technology Review – Debates over AI consciousness are a trap

Aug 202026
 

“Runaway” AI, “rogue” agents, and “autonomous” actors—the current rhetoric would have you believe that AI agents are not only awake and aware, but angry at their creators. Prominent tech leaders such as Demis Hassabis, Dario Amodei, and Sam Altman push for regulation of these seemingly “superhuman” systems, while a separate faction, led by policy organizations and academic philosophers often aligned with the effective altruism movement, debates whether humanity holds the moral right to govern them at all.  Upon closer inspection, they are all calling for the same thing: a view of AI systems as being so advanced and capable that no entity, human or corporate, could possibly be responsible for their actions. While these perspectives seem…

External feed Read More at the Source: https://www.technologyreview.com/2026/08/20/1142571/ai-consciousness-debate-trap/

 2026-08-20  No Responses »

Planet PostgreSQL – Christopher Winslett: Postgres 19: How Our Advice Has Changed Since We Wrote It

Aug 202026
 

Over the years we have written a lot about how data gets into Postgres, how it sits on disk, and how indexes help you find it again. Some of that advice was written against Postgres 10 or 11. A surprising amount of it is still exactly what we would tell you for the upcoming Postgres 19 release. Functionality described here is based on current betas; minor details may still change before GA.This post revisits Crunchy posts in the “load, storage, indexes, and partitioning” bucket: what we wrote, which version moved the needle, and what we would tell you to do now. Along the way: async I/O, more resilient COPY, LZ4 by default, richer BRIN shapes, skip…

External feed Read More at the Source: https://postgr.es/p/9sD

 2026-08-20  No Responses »