On March 15, four days after the Tohoku-Kanto earthquake and amid the heightened radiation fears following explosions at the Fukushima No. 1 nuclear power plant, Tokyo-based media artist Kazuhiko Hachiya started posting a series of short messages on Twitter.

"I'll try to explain what's going on at the nuclear power plant — in poop and farts," he wrote in his Japanese-language tweet, with the tone of a kindergarten teacher addressing children.

"First, there was an explosion the other day, but it is not an explosion of the nuclear reactor itself. It's almost like (the reactor) had a tummy pain so he tried to resolve that by farting."