Resources and links about accessing a database in Scala.
Category: Random
Articles and quizzes that have no common relation
One of the oddest things I encountered when starting to learn Scala was seeing variables called values instead of variables.
When I first started reading the docs I saw a list of values of the classes, traits etc. I kept wondering WTF is a value why not call it a variable like every other language.
So for a while I just thought the Scala community just referred to all class variables as values.
Then I was reading the docs some more, I found this page. It has this one easy to miss line that answers the question why are vals called values instead of variables.
The second sentence below the difference between Val and Var
“Because
valfields can’t vary, some people refer to them as values rather than variables.”
And that is the answer. In the Scala API documentation most classes/objects you see has a list of values defined with val.
I suppose the class variables are defined this way so that you don’t accidentally mutate them or change them.
I am still not sure why methods are called members yet, when I figure that out maybe I’ll write about it.
I found this link somehow. This guy has all kinds of interesting information about databases, programming and technology in general . https://aphyr.com/tags/jepsen
Cool ideas for reusing electronics
Things you can make from old, dead laptops
What is worth salvaging from an old smartphone?
Categories
random cool links
I am all over in the tech. I have quite a few inventions I am working on. I stay busy learning about tech all day everyday and all it does is give me more and more ideas. One day I’ll catch a break and get some money and start inventing away.
software to calculate woofer box sizes http://www.linearteam.org/
information about the software above, how to use it etc. https://www.subwoofer-builder.com/WinISD.htm
more software to design speaker boxes https://torres-box-tuning-calculator.software.informer.com/
Information about passive radiators http://www.centerpointaudio.com/passiveradiators.aspx
Free electronics learning online book.
Circuit lab free schematics and circuit simulation software. Totally cool.
Electronics notes website. Awesome electronics free learning resources website.
The Ultimate Guide To Motivating Users To Invite Their Friends To A New Platform
Therapeutic Ultrasound with Piezo Components
This is a seriously interesting article about the medical uses for piezo generated waves. Things such as tumor destruction, targeted medicine release and Intravascular Lithotripsy ( plaque removal in the arteries ) I was just thinking about how we need a way to remove plaque to help reduce blood pressure and extend life the other day. I think about an insane amount of things all the time, the more complex the better.
Generating Ultrasound with Piezo Components
This has some interesting information on the subject. I got into the piezo devices because I designed a mining device that has 0 ZERO mechanical parts. I want to build a mining device because I want to get off earth and live inside an asteroid, a ship inside an asteroid to be highly stealthy and hide from other life. There is other life, Earth is roughly 1/4 the age of the universe, it has had billions of years to find us and hide from us. That is a series of articles though. I even know why aliens probe buttholes and E.T’s finger glows. LOL
Using an Arduino to control an FM tuner
Hacking Nasa Satellites to view earth
How to create an Arduino FM radio
DIY 3D printer
I can’t wait to build one of these!!!
Part 2 of building DIY 3D printer
Part 3 of Building a DIY 3d Printer
DIY – Lab Bench Power Supply
Lecture 8 Part C: Frequency response of a piezoelectric element
Categories
Scala Java Joke
Interviewer: How much do you know about Java?
Me : Enough to decide to learn Scala
Interviewer: Do you not like Java?
Me: I’d rather not write a paragraph to simply create and use an object