Paul Sutton

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Following Friendica tags

How to follow tags on Friendica

On Friendica, posts are accompanied by tags at the bottom of the text. These help to give an idea on what topic or topics are being discussed by including keywords.

If you are interested in a particular topic, then you can follow the tags you are interested in.

Here is how:

Click on a tag and you get the following displayed, you can see the tag you clicked on has been inserted in to the box.

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Click follow and the tag will be added to the list on the left hand side. You will now see posts that contain those tags.

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following #newhere, will help you find new users, so you can respond to them and make them feel welcome.

#friendica, #tags, #follow, #howto, #help, #support, #fediverse

You can find me on Friendica at zleap@social.isurf.ca


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Further to my post on the history of atomic sturcture

It was pointed out to me that “Compounds do not form by combination of atoms, but by formation of chemical bonds between atoms.”

To this end, I am posting the link below to explain the different types of chemical bonds.

It is also worth noting from the reply that

  • “Solder is an alloy from combination of metals such as tin and lead”.

For reference and before I am told that there is Lead (Pb) free solder. The link below gives information on the different types of solder.

Nevertheless and to get back on to the topic.

I would guess that also from this, an example of a mixture could be:

  • Gunpowder which is a mixture of 3 chemicals, well a compound and 2 elements.

#chemistry, #chemical, #bonds, #compounds, #alloy, #mixture,

You can find me on Friendica at zleap@social.isurf.ca


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As I have an interest in Science as well as simple programming and electronics. I have found a resource which helps give a good explanation of current and past thinking on how the atom is structured.

The following link is a direct pdf download from another website. You may prefer to right click and 'Save As'.

I am currently working through 'The Evolving Universe' with Open Learn. This book proved quite helpful as an additional resource and reminder to complement this study.

Sometimes what is needed is another explanation that is slightly different to aid understanding.

The Evolving Universe courses goes in to the Atom on a sub atomic level. Looking at the early universe, how the main forces interacted with each other and looks the structure of particles such as the Proton. SO also looks at Leptons, Bosons and the strange world of Quarks. Quarks have different variants; up, down, charm, strange, as well as their anti-matter counterparts.

A really interesting if not rather complex look at this minute world of sub-atomic particles.

#atoms, #structure, #protons, #neutrons, #electrons, #history,

You can find me on Friendica at zleap@social.isurf.ca


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Searching for objects with Kstars, is pretty simple.

I have just signed up to a short OpenLearn course on the Orion Constellation it makes sense to perhaps search fpr Orion in Kstars. This may make it easier to observe given the current weather isn't exactly friendly for astronomy.

Pointing (menu) —> Find Object

should bring up the following dialogue box.

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From here you can search for stars, constellations, planets and other objects.

#kstars, #object, #search

You can find me on Friendica at zleap@social.isurf.ca


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Since Microsoft's acquisition of Github. Quite a few free software projects have moved off the Github platform.

There are alternatives such as Notabug or Debian Salsa that offer a better alternative.

I have now downloaded most of my projects off github in zip format. These can be stored locally or in the cloud until needed.

Some projects will be kept on github, for example media file hosting media for here, until I can find / setup an alternative. I will also keep my Scratch projects on there as they are linked to from the Scratch Ed website. It makes it easier for others.

Given that most of my projects are either complete or abandoned having not been touched for some time. This is an opportunity for a clear out.

My project to collect screenshots for Dis'root have already been moved to Debian Salsa.

#git,#github, #microsoft, #migration, #debian, #salsa, #notabug

Further reading

You can find me on Friendica at zleap@social.isurf.ca


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Greek Alphabet

As I am going to be writing posts that fall within the sciences, specifically Physics, Astronomy, Chemistry and related fields. I have decided to post here, the Greek and Hebrew Alphabet, which is used extensively in some of these fields.

I am using “a quick guide to $\LaTeX$” for this.

$\alpha$ – alpha $\beta$ – beta $\chi$ – chi $\delta$ – delta $\epsilon$ – epsilon $\varepsilon$ – varepsilon $\eta$ – eta $\gamma$ – gamma $\iota$ – iota $\kappa$ – kappa $\lambda$ – lambda $\mu$ – mu $\nu$ – nu $\omega$ – omega $\phi$ – phi $\varphi$ – varphi $\pi$ – pi $\psi$ – psi $\rho$ – rho $\sigma$ – sigma $\tau$ – tau $\theta$ – theta $\upsilon$ – upsilon $\xi$ – xi $\zeta$ – zeta $\Delta$ – Delta $\Gamma$ – Gamma $\Lambda$ – Lamda $\Omega$ – Omega $\Phi$ – Phi $\Pi$ – Pi $\Psi$ – Psi $\Sigma$ – Sigma $\Theta$ – Theta $\Upsilon$ – Upsilon $\Xi$ – Xi $\aleph$ – aleph $\beth$ – beth $\daleth$ – daleth $\gimel$ – gimel

Information source : A quick guide to $\LaTeX$ Dave Richson, Dickinson College http://divisbyzero.com

#science, #alphabet, #greek, #letters, #hebrew

You can find me on Friendica at zleap@social.isurf.ca


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$\LaTeX$ Letters

In Overleaf, I have used a template letter file with an empty letter body area (or at least minimal). Copying this to a new file, keeps the original body empty for new files.

I have also created letters and letters-sent folders. This helps keep track of which letters are work in progress and which letters have been sent.

Once saved as pdf you can also attach to a e-mail if you wish to send a letter that way.

Use % at the start of a line (for example for the enclosures) to make the line a comment, if you are enclosing anything this can be put back in by removing the % from the start.

Using % makes that line a comment

$\LaTeX$ templates is a really useful website has templates that can help get you started.

I actually feel fairly confident that I could teach or run small workshops to introduce $\LaTeX$ to students but would expect to be paid.

#LaTeX, #typesetting, #documents, #text, #wysiwym, #sharelatex, #overleaf, #ctan, #texstudio, #templates, #letters

You can find me on Friendica at zleap@social.isurf.ca


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I have just completed another OU / OpenLearn course, this time on The Evolving Universe. Despite its rather complex subject matter it was very interesting and expanded a little further on the 'How the universe works' course I undertook a few years ago.

The course looked at the early universe, the big bang, how particles, energy, time and temperature all changed over time and how all these are inter-related. How the matter we know today formed and why the universe is mostly matter and not antimatter. The fact there was more matter and what would have happened if the amount of antimatter and matter had been equal. Plus other interesting topics.

How sub-atomic particles such as Bosons, Leptons, Quarks etc interact. How research finds new particles and the huge energy levels required for this to take place.

This is a level 1 introductory course, and like the more formal course mentioned. The course also asks other questions which gets the reader thinking about different scenarios that could have occurred.

References

#OpenUniversity, #OU, #OpenLearn, #science, #EvolvingUniverse, #Space, #astronomy, #astrophysics,

You can find me on Friendica at zleap@social.isurf.ca


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The latest Choose Linux podcast (e25) was released on 26/12/2019. You can download from here. This is available in MP3 format.

#podcast, #ChooseLinux, #ep25,

You can find me on Friendica at zleap@social.isurf.ca


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$\LaTeX$ introduction

$\LaTeX$ is a typesetting system, that can be used to create professional looking documents. For example cover letters for employment, student applications, etc.

Its main use, however, is within academia. $\LaTeX$ excels at producing excellent looking reports, scientific papers, articles and has strong maths and science notation functionality.

for example:-

$CH_4$ for chemistry and $\frac{df}{dx}$ for maths as well as greek characters for example:- $$\pi , \Sigma , \Omega , \alpha$$

Which is ideal for Physics and Astronomy.

#latex, #introduction


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