News Archives - Page 7 of 11 - How To Train Your Robot

2022-02-222022-02-22

Happy Twosday! and a Surprising Pi trick

In Ben Sparks’ video he shows a very interesting trick. On a decimal angle calculator run:

sin(1/5555)

If your calculator has more than the standard Ubuntu calculator’s digits of accuracy you could add even more repeating 5’s. The answer is approximately PI with extra zeros…

0.000003142

Since today is Twosday (2-22-2022 in any date format), here is a similar Tuesday math trick for the Python console:

from math import sin
sin(22/700000.0)

It is also .0003142… or approximately Pi!

2022-02-032022-02-03

Ham radio news Feb 3

Registration is now open for QSO Today ham radio expo. Check out DMR and hearham live tutorials and many other presentations. Get your tickets for some interesting topics Mar. 12-13!
Stats and end of year summary for the 2021 user survey, are up.
Nominations recently opened for Amateur Radio Software Award for Free and open-source software. I’d nominate Pat.

2022-01-242022-01-24

GTK Choice box with Glade and Python

There may be times you have a simple choice or listing in a GTK list box – for this example, in choosing a serial connection or other device. Glade is a good way to build an application window easily with an interface to build in to your app on Linux desktop, Ubuntu or Librem phone or other Linux based phones. I was able to use this to create a Winlink user interface for the previous tutorial to call up the Pat interface.

2021-12-272021-12-27

Where have all the dislikes gone?

You may have noticed an issue with Youtube dislike count getting hidden, and it’s not just you… Youtube recently removed the dislike count, and hides it.

2021-12-132021-12-13

The new Log4j and how it may affect you

As you may have noticed, this past week saw major warnings for major Java applications or web services using Java and Log4j 2.x earlier than 2.15.0. You may wonder, how might this affect you and how can you tell if you are affected?

2021-12-032021-12-06

Treecard review – the card that plants trees

Treecard by Ecosia is a new debit card designed to reforest – and a card that is made of wood! Some previous app ratings suggested that this was “not real”, but it is in fact a real card – it has been delayed but the card production issues apparently were figured out, as they are shipping now.

2021-10-312021-10-31

Makerfaire is coming up!

The past 18 months or so have been somewhat different as far as availability of in person gatherings, meetups and Makerfairs, etc. but this year there are some changes for the better… If you are interested in Machine learning and computer-vision projects, come look at a couple demos at the booth at Central Oregon Maker Fair, Nov 13-15th!

2021-10-252021-10-25

Github Copilot Technical Preview Edition Review

If you have had the opportunity to be added to the Github Copilot preview, you may have seen the great new extension of auto complete they advertise – but is it all it claims to be?

2021-10-102021-10-10

Scientists find the other ski after seven years

Have you ever lost one sock or one shoe after looking all over for days or weeks? Well don’t feel so bad, recently some scientists found their second ski at a research site after the ice melted for seven years!

2021-10-02

Hacktoberfest 2021 is here!

It’s been one year since the spammageddon of Hacktoberfest requests and issues with contributing to only accepted opted-in repositories – but this year there are some good changes:

You can now use Gitlab for PRs.

Monetary donations are also encouraged for open source projects.

You can either get a shirt or plant a tree, for completing 4 PRs with improvements to participating open source projects.

Also, of course if you have a project yourself you maintain, you can add “Hacktoberfest” tag to get participants to find your repo. 🙂 What are some of the projects you might consider helping?