World Customs
In Japan, this traditional garment is often worn during special occasions and festivals.
What is a kimono?
This inventor is known for creating the first practical telephone.
Who is Alexander Graham Bell?
This mathematical constant, represented by the Greek letter π, represents the ratio of a circle's circumference to its diameter.
What is pi?
This animal can change its color, shape, and texture to blend into its surroundings.
What is an octopus?
This element is the only metal that is liquid at room temperature.
What is mercury?
This country celebrates a holiday called "La Tomatina," where participants throw tomatoes at each other.
What is Spain?
This invention, created by George de Mestral, was inspired by burrs sticking to his clothes.
What is Velcro?
This sequence, where each number is the sum of the two preceding ones, starts with 0, 1, 1, 2, 3...
What is the Fibonacci sequence?
This bird, native to New Zealand, is known for being flightless and nocturnal, and lays the largest egg in relation to its body size.
What is a kiwi?
This planet has a moon that is larger than the planet itself.
What is Pluto (moon: Charon)?
In this Scandinavian country, it's customary to celebrate "Midsummer" with maypole dancing and feasting.
What is Sweden?
This inventor, famous for his work with electricity, developed the first successful alternating current (AC) motor.
Who is Nikola Tesla?
This number is a proportion found throughout nature and is often used in art. it is signified by the Greek letter phi (Φ) and is approximately equal to 1.618.
What is the "golden ratio?"
This insect has the ability to camouflage and mimic the appearance and behavior of plants, trees, and branches for defense.
What is a stick bug/insect (or walking stick)?
This scientific term describes a cat always landing on its feet.
What is the cat righting reflex?
In this South American country, it's customary for people to eat lentils at midnight on New Year's Eve to bring prosperity and good fortune.
What is Chile?
This ancient civilization is credited with inventing paper around 105 AD.
What is China?
This theorem, a fundamental principle in geometry, relates the lengths of the sides of a right triangle.
What is the Pythagorean theorem?
This tiny creature can jump up to 50 times its own body length.
What is a flea?
This natural phenomenon can turn the sky green during certain conditions.
What is a tornado?
In this country, during the festival of Holi, also known as the "Festival of Colors," people celebrate by throwing colored powders and water at each other.
What is India?
This medical device, used to monitor the heart's electrical activity, was invented by Willem Einthoven.
What is the electrocardiogram (ECG or EKG)?
This conjecture in number theory posits that there are infinitely many twin primes, which are pairs of prime numbers that differ by two.
What is the Twin Prime Conjecture?
This mammal, known for its intense maternal care, can regenerate lost body parts, including limbs and organs.
What is a starfish?
This tiny particle was once thought to be the smallest unit of matter but is now known to be composed of quarks.
What is a proton?