Wednesday, January 27, 2021

Serious Sudo Trouble for Linux Distros via The New Stack


Read Serious Sudo Trouble for Linux Distros via The New Stack


An interesting link found among my daily reading

The White House website reinstates Spanish version that Trump removed via The Next Web

Showing the importance of NOT using technological reasons to excuse not serving your customer base — in this case, the Spanish speaking citizens of the United States. We knew it was a disingenuous excuse immediately, but they used it to stall for 4 years. — Douglas
 

As noted by Julio Ricardo Varela of Latino Rebels the Spanish page is directly accessible from the White House website’s main menu, or at whitehouse.gov/es. There are new La Casa Blanca Twitter and Facebook accounts too.

You might recall that upon the Trump administration taking over the website, the Spanish version was promptly removed. At the time, then Press Secretary Sean Spicer blamed the removal on the fact the administration has “a lot of work to do.” He also noted that they would “continue to build out the website” and implied reinstating the Spanish page was “just going to take a little bit more time.”

Monday, January 25, 2021

This Raspberry Pi Etch-A-Sketch Draws Pictures For You via Tom's Hardware

What's better than an Etch-a-Sketch? A giant Etch-a-Sketch! What's better than a giant Etch-a-Sketch? One controlled by a Raspberry Pi that does the work for you, like this awesome project created by a maker known as BenB116.BenB116 custom-designed the housing from scratch so it could support all the necessary components. Stepper motors control 3D-printed knobs that operate the drawing function on the display. Don't worry, artists: you can also manually operate the knobs to draw freely.

Read This Raspberry Pi Etch-A-Sketch Draws Pictures For You via Tom's Hardware


This Raspberry Pi Etch-A-Sketch Draws Pictures For You via Tom's Hardware


Thursday, January 21, 2021

Historical Technology Books - 76 in a series - Electrical Age (1901)

Historical Technology Books - 76 in a series - Electrical Age (1901)

 

More information:
Publication date 1891
Topics ElectricityElectrical engineering
Publisher New York : Electrical Age Pub. Co.
Collection ColumbiaUniversityLibrariesamericana
Contributor Columbia University Libraries
Language English

Monday, January 18, 2021

Arduino Temperature Sensor Code: Automated Fan via Geek Pack Hack [Arduino]

For Arduino projects that include temperature sensors, it’s necessary to understand how to write the Arduino temperature sensor code to program your Arduino board.

In this post, we’ll show you how to write the Arduino temperature sensor code to build an automated fan.

When the temperature gets too hot, the fan will turn on. The fan will turn off when the temperature goes down.

Read Arduino Temperature Sensor Code: Automated Fan via Geek Pack Hack



An interesting link found among my daily reading

Wednesday, January 13, 2021

Parler’s amateur coding could come back to haunt Capitol Hill rioters via Ars Technica

Some 80 terabytes of posts, many already deleted, preserved for posterity.

By now, you may have heard of the hacker who says she scraped 99 percent of posts from Parler, the Twitter-wannabe site used by Trump supporters to help organize last Wednesday’s violent insurrection on Capitol Hill. What you may not know yet is the abysmal coding and security that made the scraping so easy.

To recap, the scraping was pulled off by a hacker who goes by the handle donk_enby. She originally set out to archive content posted to Parler last Wednesday in hopes of preserving self-incriminating material before account holders came to their senses and deleted it. By Sunday, donk_enby said she had collected roughly 80 terabytes of posts, including more than 1 million videos, many of which contained the GPS metadata identifying the exact locations of where the videos were shot.

Monday, January 11, 2021

Building an Inexpensive 3-D Printed ROS Robot | by Jason Bowling [Raspi]

 
Built around a Pi4, low cost gear motors, and an RPLidar A1
 
I recently began playing with ROS in simulation, and am really enjoying it. I want a platform that I can use for experiments, particularly learning to configure a physical robot for SLAM and navigation. If you are not familiar with ROS, or have been intimidated by the steep learning curve, you might want to give my introductory article a look first.
 
I stumbled on the Weddell 2 ROS Robot by user pokpong on Thingiverse, and was very impressed. It was very close to what I was after. I couldn’t source the motors the original device used, so I made a remix of that design that was set up for inexpensive gear motors with encoders. I hope this write-up is useful if you want to do something similar. The modified files are here.


An interesting link found among my daily reading

Wednesday, January 06, 2021

To the brain, reading computer code is not the same as reading language via MIT News

 

Neuroscientists find that interpreting code activates a general-purpose brain network, but not language-processing centers.

In some ways, learning to program a computer is similar to learning a new language. It requires learning new symbols and terms, which must be organized correctly to instruct the computer what to do. The computer code must also be clear enough that other programmers can read and understand it.

In spite of those similarities, MIT neuroscientists have found that reading computer code does not activate the regions of the brain that are involved in language processing. Instead, it activates a distributed network called the multiple demand network, which is also recruited for complex cognitive tasks such as solving math problems or crossword puzzles.

Read To the brain, reading computer code is not the same as reading language via MIT News


An interesting link found among my daily reading