Today, a considerable earthquake happened in Japan.

I feel really fear of "long term earthquake" since the the Great East Japan Earthquake.

My office also shook considerably for a long time today.

I pressed down the ground and was going to stop the earthquake.

I pushed my desk of the office with both hands as hard as possible exactly.

Well, thanks to my efforts, this earthquake seemed to be suppressed relatively small.

It is really good.

My series columns, which are characteristic of using "Number", has a theme of "trying explanations about everything in the world", excluding ambiguous talks.

Now I tried to explain about two difficult problems from the viewpoint of mathematics , that is said "Fermat's last theorem" in the diet world,

- partial diet (for example, we can lose only weight of waist)

- turn of partial diet (for example, we have to lose only bust of waist first when we diet)

The other day, I could finish writing and submitting it with relief.

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When I presented my research...calculation results to my senior daughter last night, she suddenly asked me a question.

"Papa. What is "A cup", "B cup" of brassiere eventually ?"

"That means, to tell you the truth, I could know it first in this writing, is a difference between a woman's top bust size and under bust size, and is divided by 2.5cm ..."

"Why does her father explain the definition of brassiere cup to her ?"

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Dear her mother, friends and school administration. I hope that you are going to expand general knowledge, you should show her.

I watch a poster "Do not miss it! That violence is a crime!"

A organization of private railroad company started posting it all at once, I just reconfirmed that.

I am engaged in research on video surveillance systems,

"After all, it a matter of time isn't it?"

(Please refer to the item of "For my video data transfer experiment" on this page)

Of course, I have no opinion on the contents of this poster.

Regarding privacy issues, even with the police and judicial checking system, I think that I have no problem.

The Supreme Court also makes the same judgement as I am.

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In 2007, London has installed 4.2 million cameras in the city, and tourists are photographed in security cameras almost 300 times a day.

And they succeeded in surprisingly sharply reducing the number of crimes.

The price of surveillance cameras has dropped to 0.5% (1/200) on the basis of around 1990.

It is no longer possible to deny system installation due to the cost of surveillance cameras.

Now, The cost of installation and operation may be cheaper than installing a PC.

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I have insisted on many times from before -

If we want to solve the problem of "bullying" seriously, we can install surveillance cameras everywhere in the school.

(To be continued)

I sometimes get a mail(fan-letter?) from teenager, to tell you the truth, I cannot send a reply mail for it.

That means, when I try to answer a question from them seriously and honestly, I am afraid that I will hurt their heart unconsciously

Up to now, I got mails about my column of

"hydrogen bomb" (not nuclear reaction but chemical reaction)

and

"diet"

that included impressions and questions.

And I send the reply mail included applicable formulas and theory and detailed data.

"After that, the next mail doesn't come."

I have experimented that several times.

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So, it is a guess from here,

for "science engineer" like me, "a report full of numerical values and mathematical expressions" will be

- beyond the expectation of the questioner, and it is professional and difficult,

- hard to understand and to reply

As a result, I suspect them of

feeling that Ebata criticises "the study is inadequate"

It can not be helped that young people who sent fan letters, comes to avoid me, even if it sad, however,

If they become dislike of "logical thinking" and "mathematical approach", that is not my intention, and I have got your priorities wrong,

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So, for everyone who mailed me ever.

If you e-mail me again after saying "I read this today's diary", at that time, I will also reply seriously.

I will welcome you with ruthless logics and baptism of enormous numerical data of professional researchers.

(Continuation from yesterday)

If this was an "outdoor" scene, it was still possible.

Using Michibiki, RTK devices (which have become cheaper recently), and the position hopping problem were corrected by Kalman filters.

However, about "indoor", this level of positioning accuracy cannot be guaranteed.

At least, about 100 devices for observing weak positioning radio waves are installed in the facility, and a large amount of correction processing calculations must be continued in real time on a high-performance computer.

In addition, it must be processed by the number of children.

It is necessary to operate a positioning system, which is more expensive than the cost of ten of "child care facilities" managements.

Including the system construction cost, it is impossible for me to estimate.

With this indoor precision positioning, many people (me too) have been struggling for decades, and I have not yet completed a satisfactory system.

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In the world of "Promised Neverland", I thought that it would be realized how this was realized.

If they have such advanced positioning technology, the level of reproductive technology will be reasonably higher --- So,

I thought something brutally frank, like "why don't they try to mass-produce cloned humans with high intelligence, and turn them into food ?"

It is stated here that I have been a "participant in power harassment" for more than 20 years in the patent business of the laboratory.

Well, in this column, I am developing the theory of

"We cannot escape from being the perpetrator of power harassment."

I have no intention of "generalizing power harassment and defending myself".

However, all the parties to power harassment do not dream of "I am doing power harassment".

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Recently, I have been completely contaminated with quantum theory.

"We are in a state where" power harassment "and" non-power harassment "coexist"

"However, the moment we observe its existence as "power harassment", that person is confirmed as a person who performs "power harassment""

Therefore, you can label your unpleasant boss by yelling "Power harassment!".

In addition, the person's "power harassment" can be socially recognized by an in-house compliance agency or a lawsuit.

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Conversely, "She/he will do power harassment!" with that one word, it is confirmed that the person is power harassment, and it can no longer be changed.

So we don't have to abuse that word.

But if you need it, you have to exercise it. Because the most important thing in the world is myself.

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So, I have been confirmed as a "power harassment maker for patent business".

I believe that the idea of "perfection" is the biggest obstacle to getting the job done.

- I have always told my children, "Round up at 70-80%. Never aim for 100%.

I am a thoroughgoing "perfection denier," as described in.

- It's okay to "copy and paste" English documents.

I am a "short-cut supremacist" as described in

But of course, there are only a few people in our country who can proudly claim this "denial of perfection" and "cutting corners".

In addition, even if the ideology is the same, the level of standards varies from person to person, so naturally there will be differences of opinion.

In particular, this disagreement is manifested in the form of "reprimand" by the top in an organization.

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I think "reprimand" is unpleasant for anyone.

There are only two ways to avoid this "reprimand" in an organization.

(1) Do nothing

(2) Do it in silence.

If it is (1) above, nothing can be done, and if it is (2) above, it will become a problem (accident) later on.

I'm not going to say something stupid like, "Look at 'reprimand' as a positive" (but there are so many people like that that it's disgusting).

I think it's better to think of "reprimand" as a component of work (or a part of a schedule).

When I think of "incomplete" + "reprimand" as a set menu, my work will move faster (or move at my pace).

Well, even though I know what I'm doing, I sometimes choose "(2) Do it in silence"

And sometimes, I have serious accidents.

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Recently, I realized that there is a phrase in an ancient book (Sun Tzu) that truly makes this idea "right".

"A soldier respects speed."

In other words, "faster is better, even if it is based on a poor vision"

The problem is the 'soldiers...' part, well, that too is true.

We are, after all, "soldiers" who are "cogs in the organization.

I recently heard a presentation on "criminology" from a member of our research unit at a remote conference.

I thought it was just the right opportunity to ask a question during the question period.

"I am being "questioned on duty" quite often. Is there any good countermeasure?"

It's strange, but even on the other side of the network, I could feel the 'members' was put off by what I said.

There is a limit to what I can do on my own.

So, to accomplish something big, we need to build a team and work together.

However, I am not good at building a team and working together.

So, I am resigned that I will not be able to accomplish great things.

Hence, I am doing "what I alone can do."

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From now on, such new behaviors and values will rise strongly in opposition to conventional values -- I have continued to think this during the past three years of the Corona disaster.

A new society is different from the one based on superiors, subordinates, and business orders - a decentralized community of autonomous individuals with "loosely" coupled human relationships will arrive.

However, the world seemed more resilient than I had thought.

To put it more simply--

If every human being in the world becomes 'alone' like me, and loneliness and isolation become the default, we will all complete the world as a world where we do not feel lonely and isolated.

Such is the fact that utopia for me, and dystopia for many, was unfortunately not materialized.