Layer Modes, sometimes called Blending Modes, allow you to combine layers in a variety of ways. We continue with the Dodge and Burn Modes. Dodge is one of the Lighten Modes, while Burn is one of the Darken Modes, but I pulled them out for their own tutorial because they are not only closely related (inverse of each other), but also because I wanted to cover their use as Tool Modes in addition to Layer Modes. These are the Layer Modes available on the latest (at the time I write this) version of GIMP, 2.10.24.

Links:

https://docs.gimp.org/2.10/en/gimp-tools-paint.html#gimp-tools-paint-options

https://www.ahuka.com/gimp/a-layer-mask-project/

https://digitalmedia.fws.gov/digital/collection/natdiglib/id/14486/rec/210

https://www.youtube.com/watch?v=bbaAEZl7_44

https://www.ahuka.com/gimp/dodge-and-burn/

In this episode our two OAPs host Deb Nicholson, the general manager of the

Open Source Initiative (OSI). Apart from riveting insights into open source

licensing we discuss the greater FLOSS ecosystem and Deb's views on why

wearing shoes is important in certain contexts, open source standards, law

suits and the differences between US and Europe among other things.

Links:

OSI: https://opensource.org

OSI's FLOSS definition: https://opensource.org/osd

Commons Clause license: https://commonsclause.com

TerminusDB license change: https://blog.terminusdb.com/we-love-gplv3-but-are-switching-license-to-apache-2-0-terminusdb

Open source licenses: https://en.wikipedia.org/wiki/Comparison_of_free_and_open-source_software_licences

Open Core model: https://en.wikipedia.org/wiki/Open-core_model

Software Freedom Conservancy: https://sfconservancy.org

Bruce Perens: https://en.wikipedia.org/wiki/Bruce_Perens

Loki TV series: https://en.wikipedia.org/wiki/Loki_(TV_series)

Luca movie: https://www.imdb.com/title/tt12801262/?ref_=fn_al_tt_1

The Internet is made of cats: https://www.youtube.com/watch?v=zi8VTeDHjcM

Gnome and systemd: https://blogs.gnome.org/benzea/2019/10/01/gnome-3-34-is-now-managed-using-systemd

Apparmor Profile: https://packages.debian.org/bullseye/apparmor-profiles

Apparmor Profile Extra: https://packages.debian.org/bullseye/apparmor-profiles-extra

Talking Points

Listener Feedback

Dave Morriss and the Markdown/HTML debacle

Using validate_html

Podcast logistics etc.

hackerdefo's suggestions

.less_termcap:

export LESS_TERMCAP_mb=$(tput bold; tput setaf 2)

export LESS_TERMCAP_md=$(tput bold; tput setaf 6)

export LESS_TERMCAP_me=$(tput sgr0)

export LESS_TERMCAP_so=$(tput bold; tput setaf 3; tput setab 4)

export LESS_TERMCAP_se=$(tput rmso; tput sgr0)

export LESS_TERMCAP_us=$(tput smul; tput bold; tput setaf 7)

export LESS_TERMCAP_ue=$(tput rmul; tput sgr0)

export LESS_TERMCAP_mr=$(tput rev)

export LESS_TERMCAP_mh=$(tput dim)

export LESS_TERMCAP_ZN=$(tput ssubm)

export LESS_TERMCAP_ZV=$(tput rsubm)

export LESS_TERMCAP_ZO=$(tput ssupm)

export LESS_TERMCAP_ZW=$(tput rsupm)

.bashrc:

if [ -f $HOME/.less_termcap ];then

. $HOME/.less_termcap

fi

poca, castero, and gpodder cli

My opinion on Python and Java

ProtonMail Bridge with mutt

Comments from the last episode

(Please go to the last episode to read the full comments)

NOTE: If you want a timely response, please email me or mention me on Mastodon

Operat0r: Kids these days! https://www.nethack.org/

b-yeezi: +1 for cnus

sesamemucho: The text

Dave Morriss: Very enjoyable

Gumnos: Using "c" to pause in cmus

New Talking Points

Here Documents

cat > text.txt <<EOF

Hello, World!

EOF

NetHack

Show Notes

Important Links:

HPR Episode 3431: Living in the Terminal by BlacKernel

ProtonMail Bridge with Mutt by Medium

poca by brokkr

castero by xgi

gpodder CLI interface

NetHack (The best game ever)

Wikipedia Articles:

None

Contact Me

Email: izzyleibowitz at pm dot me

Mastodon: at blackernel at nixnet dot social

Mobile devices don't display them nicely.

Most tables can be converted into a list:

OSInitPkg

Fedorasystemddnf

SlackwareBSD-styleslackpkg

GentooOpenRCemerge

Can be represented as a list. In YAML terms, this is a sequence of mappings.

Fedora

Init system: systemd

Package manager: dnf

Slackware

Init system: BSD-style

Package manager: slackpkg

Gentoo

Init system: OpenRC

Package manager: emerge

A table doesn't always translate exactly to a list, but it probably can be restructured.

OSOpen sourceLanded on Mars

LinuxYesYes

BSDYesNo

macOSNoNo

Could be written like this instead:

Linux and BSD are open source operating systems, while macOS is not. Of these POSIX-compliant systems, only Linux has landed on Mars so far.

That's pretty casual and loses the visual impact of a table or a list. So alternately, you could summarize what's common and highlight differences:

There are a few Linux systems on Mars.

Neither BSD or macOS have yet landed on Mars.

Linux and BSD are both open source.

macOS is based partially on open source and includes components from the BSD, KDE, GNU, and other projects.

table td.shrink {

white-space:nowrap

}

New hosts

Welcome to our new host:

hakerdefo.

Last Month's Shows

Id

Day

Date

Title

Host

3435

Fri

2021-10-01

Hacking Stories with Reacted: part 5

operat0r

3436

Mon

2021-10-04

HPR Community News for September 2021

HPR Volunteers

3437

Tue

2021-10-05

The HTML document format

Daniel Persson

3438

Wed

2021-10-06

Ten privacy friendly Google search alternatives.

hakerdefo

3439

Thu

2021-10-07

Linux Inlaws S01E40: The One with the BSDs

monochromec

3440

Fri

2021-10-08

Lighten Layer Modes

Ahuka

3441

Mon

2021-10-11

Murphy Work Bench

operat0r

3442

Tue

2021-10-12

What is this thing called science

klaatu

3443

Wed

2021-10-13

Neuton battery replacement

Rho`n

3444

Thu

2021-1

Moore's Lobby

Ep. 34 | The Latest from the Lab: How IBM Research Is Inventing What's Next

https://www.allaboutcircuits.com/podcast/ep-34-the-latest-from-the-lab-how-ibm-research-is-inventing-whats-next

Rss feed: https://eetech.libsyn.com/rss

Interview with Dr. Jeffrey Welser

VP of Exploratory Science at IBM Research

IBM Release first 2nm chip this year

Engineers vs Scientists and how they drive innovations

Goal to replace the transistor when Moore's Law stops scaling

Managing thermal loads

Finding new structures and materials to control current

Neural nets, image recognition and AI

Quantum computing

Discussion starts at 34:35 into the podcast

Richard Feynman, Early 80's

http://www.feynman.com

qubits

superposition state

"Spooky action at a distance"

Encryption

Need millions of qubits to break current encryption

Only currently over 100 qubits

At least a decade from having enough qubits

Currently have classical systems that cannot be broken by quantum computers

The math does not map onto a quantum system

Currently working with NIST to create quantum safe cryptography

https://csrc.nist.gov/Projects/Cryptographic-Standards-and-Guidelines

Quantum chemistry

Quantum chip - cooling and superconducting

Dilution refrigerator

Low temperature and pressure

Top is 4 Kelvin, bottom gets to 15 milli Kelvin

https://phys.org/news/2019-06-superconducting-quantum-refrigerator.html

https://www.nist.gov/si-redefinition/kelvin-introduction

Josephson junction

It is the reference Volt as defined by NIST

https://www.sciencedirect.com/topics/physics-and-astronomy/josephson-junctions

https://en.wikipedia.org/wiki/Josephson_voltage_standard

Use an IBM quantum computer online

May 2016 the first quantum computer was put on the 'Net

https://quantum-computing.ibm.com

https://newsroom.ibm.com/2016-05-03-IBM-Makes-Quantum-Computing-Available-on-IBM-Cloud-to-Accelerate-Innovation

300,000 users

https://qiskit.org/documentation

Qiskit is open-source software for working with quantum computers at the level of circuits, pulses, and algorithms.

Engineering Notation

Learn this table

giga G 109 1,000,000,000

mega M 106 1,000,000

kilo k 103 1,000

1

milli m 10−3 0.001

micro μ 10−6 0.000,001

nano n 10−9 0.000,000,001

pico p 10−12 0.000,000,000,001

Links

Engineering notation

List of International System of Units (SI)

hpr3087 :: Phonetic alphabet

Talking Points

main.rs

Like main.cpp in C++ or main.c in C

Tells the compiler which file to start with

Can link to other "crates" and "modules"

Cargo.toml

Keeps track of application metadata

This includes dependencies!

Functions

Strictly typed, like everything in Rust

Declared by fn

Argument typed with argument: Type

Return typed with -> Type otherwise assumed to return nothing

The Main Function

Like the main functions in C and C++

Where the program starts within the main.rs file

CLI arguments handled by std::env, rather than argv and argc in C

Can return nothing or a Result<()>

Macros

Metafunctions or functions for functions

More general than functions, having flexibility in the number of arguments, etc, but harder to write

The println! Macro

Can take any number of arguments that implement the display trait

Usually things like strings or character literals

Will format them into a string and display it on the terminal

Similar to printf in C

The Hello World program

Can be automagically generated with cargo new and then the name of your application

Located in Name-Of-Application/src/main.rs

fn main() {

  println!("Hello, world!");

}

Show Notes

Important Links:

Git repo for this miniseries

The Rust Standard Library

The format! macro

The println! macro

Wikipedia Articles:

The Rust Programming Language

Contact Me

Email: izzyleibowitz at pm dot me

Mastodon: at blackernel at nixnet dot social

Introduction

On today's show I test whether the battery replacement for my Neuton mower is a success. This is a follow up to episode 3443. After some audio recording difficulties with the blue tooth headset I used with my phone, we hear if the replacement was successful. Before I could test the battery, I needed to replace the mower key. I think it would have been simple to just jump the terminals with a wire and maybe some alligator clips to hold the wire to the key terminals, but I was worried this would not guarantee the wire shaking loose as I moved. I looked on EBay and found a replacement key for about fifteen dollars US, and decided it was worth the cost and the wait before trying out the mower.

Testing the mower

After putting the key in the mower, pulling and holding the safety levers, and then pressing the start button. The mower wouldn't start. I checked the key was set properly, and saw the green LED on the handle lit and indicating that power was available. I pulled the key and battery out, and then reseated both of them, checking once again that the power indicator was lit. After some fooling around with the safety levers and start button, I realized you had to push the start button and then pull and hold the safety levers for the mower to start. The mower runs well, and the cost of the batteries and key will even out over time from the savings on not paying for a lawn service.

References

DR Neuton Cordless Walk Behind 14" Lawn Mower CE2 CE3 CE5 Reset Security Key - EBay item

Attribution

The transition sound used between audio clips is found on freesound.org:

Name: Harp Transition Music Cue

Author: DanJFilms

License: Creative Commons Zero

beware shipping prices

always use Instant Checkout

be sure to check USA

2-3x the cost of lego.com set

paying 3-5 people via paypal ....

no way to easy share wanted list ...

LOST :( https://rmccurdy.com/.scripts/downloaded/CL4P-TP%20Claptrap%20Borderlands%20Bricklink.xml

7 missing out of 216 on one shipment

Photo

Click the thumbnail to see the full-sized image