Let's take on a four-choice quiz that everyone can enjoy together!

118

The number to call when an accident or incident occurs at sea is 118. This is the Japan Coast Guard’s emergency number, introduced in 2000. Often called the “110 of the sea,” it is used for situations requiring a swift response, such as sightings of suspicious vessels or when lifesaving assistance is needed. This number was established to protect safety at sea, and remembering it can be helpful in an emergency.

orange

The glittering, golden origami paper is made by painting silver origami paper with orange paint. You can also make something that looks like golden origami paper just by coloring store-bought silver origami paper with an orange marker, so give it a try!

Hokkaido

They say that if you weigh yourself in Hokkaido, you’ll be 0.15 percent heavier than in Okinawa. The reason your weight changes by region is due to gravitational acceleration. Gravitational acceleration is the acceleration exerted on an object by gravity. Because the Earth rotates, centrifugal force is at work. Centrifugal force makes things lighter on the inner side of the axis and heavier on the outer side. That’s why it affects your weight.

12cm

Hair is said to grow about 0.3–0.4 mm per day, which averages out to roughly 2.5 mm per week, about 1 cm per month, and about 12 cm per year. With around 100,000 hairs on the head and about 90% of them in the growth phase, the total length grown in one year is said to add up to around 100 kilometers. This shows how particularly active hair is in terms of metabolism compared to other parts of the body.

the bell of Big Ben

The school chime is modeled after the sound of the bell of the large clock commonly known as “Big Ben” in London, UK. Big Ben is the clock tower at the Palace of Westminster, and its official name is the Elizabeth Tower.

earthquake

The event that led to full-scale evacuation drills being conducted in Japan was the Great Kanto Earthquake of 1923. This massive earthquake caused devastating damage, especially in Tokyo and Yokohama, and many lives were lost. Afterward, the importance of earthquake preparedness became widely recognized, and September 1 was designated as Disaster Prevention Day, on which evacuation drills are held nationwide. Since earthquakes occur throughout Japan, everyday preparedness is considered extremely important.

blood type

Actually, plants have blood types too. They don’t have blood flowing, but it can be measured by glycoproteins.