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Topics of Japanese history-Mongolian Invasions

(by S. Miyauchi, Professional Engineer, Doctor of Engineering, JSME Fellow)

<元寇、Mongolian Invasions>

After Mongolia conquered China (Song) and became the biggest empire in world history, they attacked Japan twice in 1274 and 1281 with the world's biggest fleet at that time. Surrender soldiers of China and Korea also rode on it. About war in 1274, this picture is very realistic so that Mongolian soldiers did a group war with not only composite bows but also grenades. And Japanese horse was surprised at those sounds. In 1281 Japan built stone wall on the seashore and blocked the Mongolian army to land. At that very moment, a typhoon (Someone called the wind of God) struck Mongolian to withdraw.

As is this typical case, China and Korea had always been threatened by northern equestrian people such as Huns, Mongolian and Jurchen, but Japan is historically difficult for foreigners to invade. And there has been few ethnic and religious conflicts. Obviously because it is surrounded by the ocean and it has severe weather conditions (typhoon in summer, heavy storm and snow in the Sea of Japan due to Siberian seasonal wind).

The only threat now is the first one shot from North Korea. Because Japan might be already within range of a little high performance missiles than V2 rocket. Also the threat by nuclear weapons which Japanese peeople hate for the tragedy of Hiroshima and Nagasaki is very unpleasant. Because the deterrence force might be sufficient with the latest weapons (fighter aircraft and cruise missiles), the faith of nuclear weapons such as North Korea is very strange.





宮内 直(技術士、工学博士、機械学会フェロー) 地方公立名門高校の卒業生は人間力と好奇心・地頭が強く伸び代が大。率直で元気で挑戦的、ストレス・逆境に強く、様々の境遇の仕事相手の懐へ初対面でも飛込む。また地方の親達は「子供は何とか国立大学へ」と懸命に働き、子供もその感謝で社会に出て勤勉なので企業に人気。地方創生が最近よく話題になるが、明治の近代化から戦後復興・高度成長は、江戸時代の全264藩(領邦)


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人間、「はい、ここまで」という日は来る。 突然来る(交通事故など)。 一定期間の予告をもって来る場合もある(癌の告知後数か月から数年など。)。 病床に2、3日臥せれば、あっという間の身体の衰えを意識する。 身体、頭、目、手、足を動かしての命である。 「はいここまで」が来るまで、毎日、身体、頭、目、手、足を動かすことだ。 それは試験の1時間と同じだ。一生は試験の1時間だ。 「はいここまで」と言われる


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