The Hakucho and the Spektr-R are both types of what?
Hakucho Hakucho (also known as CORSA-b before launch) was Japan's first X-ray astronomy satellite, developed by the Institute of Space and Aeronautical Science (then a division of the University of Tokyo). It was launched by the ISAS M-3C-4 rocket on February 21, 1979 and reentered the atmosphere on April 16, 1985 .
Tekkan The tekkan (Japanese: 鉄管 , lit. "iron pipe") , also known as "tetsu-ken" or "tetto" (鉄刀 , lit. "iron sword") is a Japanese weapon that was used during the Edo period until the beginning of the 20th century. It was an iron truncheon; it could closely resemble a wakizashi-sized sword with a blunt iron blade, or could be a cast-iron version of a kabutowari.