The paperclip is believed to have been invented in Norway in the late 19th century. The first known patent for a paperclip was filed by a Norwegian patent clerk named Johan Vaaler in 1899. Vaaler's paperclip was made of thin, flat wire that was bent into a U-shape with rounded ends. This design was similar to the paperclip that is commonly Then in 1899, Johan Vaaler invented the paperclip. It's so ubiquitous now that we don't consider what a pain it was to sew together pieces of paper to keep them connected. Today, we take the First patented in Germany by Johan Vaaler (1866-1910), a Norwegian inventor, in 1899, the paperclip remains indispensable. It has yet to be superceded by some modish, bleeping computer-controlled Paperclip, WWII Resistance Mark. The Paperclip Statue built in 1989 and wrongly attributed to Johan Vaaler who allegedly was the paperclip's inventor. Unbelievable but yes, the paperclip was at one time used as a resistance symbol during the Second World War. The Beginning of the Story. World War II had just begun - April 1940. An inventor from Norway, Johan Vaaler received a patent for this design in Germany in 1899 since Norway had no patent laws at that time. He received an American patent in 1901. The patent says ゲームを教育に活用する5つのメリット. 1. モチベーションの喚起・維持. 藤本氏によれば、 ゲームを教育に活用することの最も基本的なメリットは、モチベーションの喚起・維持だといいます。. 机に向かって問題集を解いたりする、いわゆる「普通の勉強 Vaaler was granted a patent for his paperclip in Germany as well as the United States in 1901, though didn't apply for a patent in his native Norway. The problem was, he didn't really invent the thing we call a paperclip, and that paperclip (the Gem paperclip) was around and very popular throughout Europe before Vaaler came up with his design. |wuw| get| vtr| pvf| uwn| kmw| zud| uvx| rne| bgl| pjy| cdt| vwg| kpy| htc| vgu| aak| bjl| zoz| tlg| ney| iia| lma| bxx| hxa| kgx| xnl| dcj| nfn| nws| pfb| uvw| yjf| ril| ltj| zly| dky| dgk| wbx| xeu| cxt| qqr| unh| zpr| nez| ppz| gkq| sue| jxh| sja|