*1:See also https://sumita-m.hatenadiary.com/entry/20110626/1309058098 https://sumita-m.hatenadiary.com/entry/20130517/1368756956 https://sumita-m.hatenadiary.com/entry/20160525/1464109426 https://sumita-m.hatenadiary.com/entry/20170508/1494211101 https://sumita-m.hatenadiary.com/entry/20170602/1496329663 https://sumita-m.hatenadiary.com/entry/20170911/1505057570 https://sumita-m.hatenadiary.com/entry/2020/10/22/082745 https://sumita-m.hatenadiary.com/entry/2021/03/25/070402
*2:https://www.kyoto-tower.jp/ See eg. https://ja.wikipedia.org/wiki/%E4%BA%AC%E9%83%BD%E3%82%BF%E3%83%AF%E3%83%BC See also https://sumita-m.hatenadiary.com/entry/2020/08/19/133628