Learn about the chirping of a cricket (Korogi) in 90 seconds
In the fall crickets chirp incessantly in the grass. Can you tell the chirping of a cricket from other insects? Learn about crickets just in 90 seconds!
Learn about eyestrain and short-sightedness in 90 seconds
Learn the difference between eye fatigue and eyestrain in 90 seconds
Learn how to read a Japanese Calendar in 90 seconds
