Notes I take for research. Notification of this website. Miscellaneous posts that do not belong to other categories.

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To conclude this book, I would like to present my personal proposal for what we should do to make our civilization su ...

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How long can our civilization flourish? Will our civilization remain thousands of years hence? During the Cold War th ...

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People expect that a hydrogen-powered fuel cell engine will take the place of an oil-powered internal combustion engi ...

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About one-third of the world’s land surface is arid or semi-arid. The Earth’s landmasses are losing 24 bi ...

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Today, global warming is the most popular topic of all environmental problems. It was one of the major themes talked ...

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There are many environmental problems that threaten the sustainability of our civilization, namely, the problems of p ...

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Cooling centralizes systems, while warming decentralizes them. The modern Little Ice Age centralized social systems, ...

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Since the survival of our systems depends on getting the low-entropy resource from the environment, throwing the high ...

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The shortage of natural resources and the destruction of the natural environment are two big problems that are now th ...

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The modern civilization that originated from the Industrial Revolution is now spreading throughout the world. The dem ...

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I have decided to integrate the contents placed in four websites into a new domain nagaitoshiya.com from August 1, 20 ...

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Happy New Year. I am in the habit of writing retrospect of the last year and prospect of this year on the first day o ...

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This is the third New Year for this blog. Unlike in 2011 I was able to spend more time creating contents rather than ...

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2011 was the year I spent more time improving the infrastructure for new websites than writing articles. I am still s ...

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After pondering what is the best way to publish my study, I decided to quit continuing the old blog and start new web ...

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I attended the inauguration of Governor Benigno Repeki Fitial and Lieutenant Governor Timothy Pangelinan Villagomez o ...

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Here I start a blog site. But the articles I will post are not new ones. Let me explain how and why I made this site. ...