This top page is to transmit the proof that I am still alive and enjoying retired life, mainly to my relatives, friends and former students. A story or an event is selected from daily life and my thoughts and experience are introduced.
From Daily Life - 86: Digital records of life As we get older, the records of the past just keep piling up. I started
using a Nolty Planner to write down my schedule and notes in 1960, and
since then I have 65 of them lined up on my shelves. I also have a considerable
amount of records of my life that I wrote myself, such as diaries and travelogues.
I also have certificates from various occasions of my life, such as graduation
certificates, degree diplomas, awards, and orders of appointment. In terms
of volume, the largest amount of space is taken up by offprints of papers
I have published in academic journals. All of these are physical, paper-based
records. If they burn, nothing will remain.
In the 1980s, personal computer use began to grow rapidly. It was around
that time that the habit of keeping records as digital files began. In
the 1990s, software that is convenient for creating databases became rapidly
popular, and the digitization of life records became firmly established.
Below, I would like to introduce how I have made the best of digital records.
I use the database software Access for most of my digital records, but when I need to do a lot of calculations between items, such as financial records, I use the spreadsheet software Excel.
***
1. Personal data (Access): In addition to an address book to keep addresses and phone numbers, I
record the following items for each person with whom I have had contact
or corresponded; classification code, birthday, family composition, education/work
background, New Year's card exchange history, special notes (memos, etc.).
Classification codes are related to the sending of New Year's cards, such
as 0 for deceased, 1 for sending before year-end, 2 for receiving and replying,
3 for no exchange, and f for sending jointly to the recipient's spouse.
The New Year's card exchange history records all sending and receiving
since 1974. Currently, there are about 1,300 Japanese and 110 foreigners
registered. This is the data base I use most frequently.
2. Papers and career data (Access): This is my professional activity history, and includes the following
data.
・Publications (list of titles and journal names of over 800 published papers, editorials, commentaries, essays, etc.)
・Lectures (list of titles, dates, and locations of approximately 200 lectures)
・Appointments (list of approximately 400 appointments issued by government agencies,
universities, public corporations, academic societies, etc.)
・Academic society activities (list of assignment and award records of 20 academic societies (14 domestic, 6 foreign))
3. Student guidance data (Access): A list of the names, years, and thesis titles of students who
completed their bachelor's, master's, or doctoral theses in my laboratory.
280 students from the University of Tokyo and 180 from Kogakuin University
are recorded. Doctoral theses include those that were written without completing
a graduate school course.
4. Business card data (Access): A list of the names, affiliations, and positions of business
cards received since 1970. 5,300 Japanese and 550 foreigners are recorded.
This is extremely useful when searching for old business cards.
5. Financial Data (Excel): Bank deposits, the assessed value of investment trusts, etc.,
and total financial assets are listed at the end of each month. In addition,
income such as salary, miscellaneous income, and pension, as well as income
tax and resident tax, are listed at the end of each year to overview the
annual trends.
6. Medical Examination Data (Excel): Health examination results, mainly blood test results, are listed
by items. Fluctuations in test values from 140 examinations from 1994 to
the present can be seen. Test items include standard ones such as blood
cell count, cholesterol, triglyceride, protein, and blood sugar, as well
as test values under observation such as PSA (prostate-specific antigen)
and NT-pro BNP (heart failure assessment).
***
These digital records have been accumulated over nearly 50 years, so I don't feel like I have spent much time on them. But looking back, I am impressed by the perseverance I have shown in updating my records. If we upload files to the cloud, we can check our past anytime, anywhere on the smartphone. We live now in an age where such a miracle is the real. What I introduced here is just an example in the digital age.
The total recording capacity of these text-based data is less than 40
MB (megabytes). It easily fits on one USB memory. The USB memory shown
in the photo above, a small lump of plastic weighing 7 grams, is a can
of life records.
The digital records introduced this time do not contain a huge amount of image data. The total storage capacity of image data reaches TB (terabytes), which is incomparable to text-based records.
When humans die, they leave behind personal belongings. The left family
members have done their best to decide the fate, memento or discard. From
now on, in addition to physical visible belongings, there will also be
invisible belongings stored in storage media. How should we deal with the
latter? This is a problem that humanity has never faced before. The left
family members will surely be bewildered.
→ Past Top Pages
"From Daily Life"
1: Tracing family roots
2: The second last car
3: August 15. my memorial day
4: Battlefield rations
5: Begginer at the gym
6: Fuji View Hotel
7: Lesson in Hiragana writing by brush
8: Moving from old to new smartphone
9: Living alone in my second year
10: Welcomed by cherry blossom
11: Eden of peach blossom
12: Tama River Walk
13: Chichibu Pilgrimage
14: Bonds with local community
15: About my homepage
16: Annual report of athletic gym
17: Pilgrimage to Mt. Tsukuba
18: Reunion of alumni and classmates
19: Braking by left foot
20: Battlefield rations in the sequel
21: Granddaughter has come!
22: Visit to Kobayashi Residence
23: Wake-up exercise
24: Digital photo album
25: Seven tools for brushing teeth
26: Ambulance
27: Quick report on drive monitoring
28: Hearing aid
29: Jindai Botanical Park
30: 2020, a historic year
31: Topics of eye
32: Final report on drive monitoring
33: Cognitive ability test
34: PCI to prevent heart infarction
35: Ashikaga Flower Park
36: 90 years old supported by medication
37: 3 years with Subaru
38: 45 years living in Seijo
39: Caspian Sea yogurt
40: Home Museum of Aunt Zschäbitz
41: Reunion of university classmates
42: Okutama spar tour
43: New Year's greeting card
44: Implant
45: Fuchu Forest Park
46: Grave closing
47: Walking group of local community
48: How-to books for the elderly
49: Home altar
50: Such a life
51: Knee of the elderly
52: Metropolitan Kinuta Park
53: Shirakaba Art Museum of Kiyoharu
54: Haiku; Metasequoia
55: Three years with COVID-19
56: Battlefield rations in the 6th year
57: Hearing impairment
58: Shinjuku Station
59: Haiku with photograph
60: Moving to 5G smartphone
61: History of private cars
62: Setagaya Art Museum
63: FreeCell
64: Turbo
65: Hinata Temple of Yakushi
66: Moving of home computer
67: Amakusa tour
68: Hand craft as a hobby
69: Kitami Community Square
70: Photo-Haiku 2
71: Support scam abusing Trojan Horse
72: Bedside gym
73: Metropolitan Nogawa Park
74: Family funeral
75: Sudoku (Number Place)
76: Photo-Haiku 3
77: Ohyama Afri Shrine
78: Kunisaki Peninsula tour
79: The old school system is far away
80: Cooking group of local community
81: Motor fan group of local community
82: Directories disappear!
83: Tunnel ventilation
84: Hearing aid renewal
85: Photo-Haiku 4
"Memorable Scenes"
Series 1: Parade with Doctor hat on the head
Series 2: Calligraphy in a frame
Series 3: A young man from the Orient
Series 4: Sumo-stamping
Series 5: Waiting room of Shanghai Station
Series 6: Let's Walk Festival
Series 7: Last long-distance drive
Series 8: My Car No. 3
Series 9: Ski camp
Series 10: Safari experience
Series 11: First encounter with dogwood
Series 12: Mt. Fuji
"Treasure Box of Words"
Series 1: Virtue brings profit
Series 2: Wait for a ripe moment
Series 3: Catch the symptoms
Series 4: Words are selected metaphors
Series 5: Start with two humans
Series 6: Optimism is a will, pessimism a mood
Series 7: Atop a summit, and another becomes visible
Series 8: We see only what we want to see
Series 9: Chanllenge is the privilage of the young
Series 10: Today is the first day of my life
Engineer Series 1: Who's engineer, juveniles' answer
Series 2: Corus of "We raise engineers!"
Series 3: From Nobel Prize to Gold Medal
Series 4: Professionals in three categories
Series 5: Various tasks in engineering
Series 6: Classification of EPs by IEA
Series 7: Science, technology and related professionals
Series 8: Proposal for the classification of engineers
Series 9: Revised proposal for the classification of engineers
Series 1 - 10: Whole Series including summary and remarks
Cartoon Series 1: Mechanism of viscosity
Series 2: Mechanism of loss generation
Series 3: Commuter packer and enthalpy
Series 4: Skinny grasshopper and fat pupa
Series 5: From hand-drawn picture to ready-made clip art
Series 6: Why do you learn? - 1
Series 7: Why do you learn? - 2
Series 8: Two Sciences
Series 9: Scientist and Engineer
Series 10: Science and Non-science
Series 11: Structure of human relations
Series 12: Oriental subconsciousness
Nostalgia Series 1: The first own car
Series 2: The first driver's license
Series 3: Comparison of German and Japanese Diploma
Series 4: The first air travel
Series 5: Tachometer used 60 years ago
Series 6: The three sacred calculators
Series 7: The first home computer
Series 8: Sentimental journey to Nordkapp
Series 9: Change of photograph
Series 10: Story of passport
The others
Membership of Academic/Professional Societies
Curriculum Vitae
Recent Publications
The center of gravity of recent publications has been shifting from those with the topics in fluids engineering to those in engineering education. Please refer to Publications List of the recent papers written in English.