Watch this self-solving Rubik’s cube march its way across a table

This wild, 3D-printed self-solving Rubik’s cube is amazing. To make it work, a Japanese inventor used servo motors and Arduino boards to actuate the cube as it solves itself. Sadly, there isn’t much of a build description available but it looks to be very compact and surprisingly fast.

There is a description of the project on DMM-Make and you can watch the little cube scoot around a table as it solves itself in less than a minute. The creator also built the Human Controller, a cute system for controlling a human as they walk down the street, and the Human Crane Game which is equally inexplicable. If this Ru-bot is real and ready for prime time it could be an amazing Kickstarter.

Gadgets – TechCrunch

Last march of the Penryns: Intel cuts Spectre fixes for some older chips

As part of its ongoing efforts to patch its systems against the Meltdown and Spectre chip flaws, Intel indicated last month that it would be issuing fixes as far back as 2005’s Yorkfield processors. But in a new guidance document the company announces that many of these older platforms will not receive fixes after all.

Specifically, work has been stopped on Spectre Variant 2 mitigations for the chip generations known as Bloomfield, Clarksfield, Gulftown, Harpertown, Jasper Forest, Penryn, SoFIA 3GR, Wolfdale, and Yorkfield. (You can find more specifics at this great list of Intel codenames on Wikipedia.)

Variant 2 is the toughest of the chip flaws to block or work around, so the creation of fixes is nontrivial — Intel isn’t just copying and pasting stuff into a microcode update for each of these.

In the guidance document (PDF), Intel cited several reasons for stopping development on the fixes:

  • Micro-architectural characteristics that preclude a practical implementation of features mitigating Variant 2
  • Limited Commercially Available System Software support
  • Based on Customer inputs, most of these products are implemented as “closed systems” and therefore are expected to have a lower likelihood of exposure to these vulnerabilities.

In other words: it’s super hard, they’re barely supported, and few people are using them where the bugs could be exploited.

It’s a reasonable walkback of the scope of Intel’s mitigation efforts, especially when you look at the size of the list of platforms that are having the problems addressed. Still, system administrators may want to cast an eye over their inventory to make sure no chips of these generations get exposed to the untamed wilds of userland.

And for users, the Penryns (Core 2 Duos in particular) were very popular and I wouldn’t be surprised if a few people were still running an old laptop with one — they were in all kinds of things back in ’08. If you’re one of those sentimental types like me that keeps these things around, you should probably avoid doing anything critical on them.

Gadgets – TechCrunch

ZTE will deliver the first Android Oreo (Go Edition) handset for the U.S. market in March

 Things have been mostly quiet on the Android Go front since Google announced the low-power mobile operating system back in May — aside, of course, from an unexpected name chance to the decidedly less catchy. Android Oreo (Go Edition). One of the things that’s made the offering unique from the start, however, is that unlike most of these sorts of lite offerings targeted at the… Read More
Android – TechCrunch

Super Mario Run’s Android release date is March 23

 Super Mario Run is officially making its way to Android, as Nintendo promised what seems like so long ago. The company has now revealed an exact date for Mario’s Android debut: March 23. That’s this Thursday, in case you’re bad at math or don’t have a calendar handy, and it means iOS users had over three months of exclusive access to the game. Since that’s a… Read More
Android – TechCrunch