About


Hello, and welcome to Free and Handy! I’m Aigo Shimonaka, a Japanese citizen, but raised in an English-speaking environment. Thus, my first language is English. Free and Handy was created for the purpose of providing unique and useful information and help on a handful of themes, ranging from DIY and carpentry to science and the environment to life here in Japan. Check out my sitemap for a full list of all pages!

I am currently a contract carpenter (since 2012) working in the steel-ALC-wood house-building industry (Hebel Haus/Asahi Kasei Homes), which provides me with the opportunity to learn and work alongside dedicated, cutting-edge professionals in this field. It is my hope that the information contained herein will be beneficial to those who don’t have the luxury of first-hand experience, but yet need help and counsel as they tackle various DIY/building projects.

Posts and pages are generally written in article format with relevant images and links to make your visit an educational and productive experience. All written content is original, authored by me (I make it a point to maintain at least this level of originality within my site), with some select videos and images borrowed. Definitions contained in the glossary are taken from online sources such as Wikipedia.

See you inside!

here.

6 Responses to About

  1. OswaldoCeP says:

    Hello.
    I need to contact admin.
    Thank you.

  2. Simon says:

    Invaluable information!

    A gold mine for any gaijin trying to tackle construction in Japan.

  3. Moritz says:

    Hi Aigo,
    I just read your page on the caternary arches and parabolic arches. I thought it was very interesting and wanted to ask; if I were to put a weight on a caternary arch that were not gravity, it were better to use a parabolic shape am I correct?
    Thanks!

    • It would depend primarily on the direction of the force in question. For example, an arch with the curve of a circle would be strongest against a force from an arbitrary and/or uniform direction (e.g. tunnels), while parabolas and catenaries are only strong against uniform loads or forces approaching parallel to the axis of symmetry (e.g. arch and suspension bridges).

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