Eureka!
Money, money, money!
Moscow Metro/Subway
Rainbow colors
Trading
100
The first prototype, patented in 1876, had no bell; if you wanted to call a friend, you had to blow a whistle through the tube.
A telephone
100
A number of countries—for example, Australia, New Zealand, Vietnam, and the Maldives—no longer use paper banknotes, using this material instead.
Plastic
100
From 1946 to 1961, the Moscow metro used type "B" cars, received as reparations from the Moscow metro.
Berlin
100
The first traffic light in Paris was installed in 1923 and had only this color.
Red
100
If there's only one seller of a product, it's a monopoly, but monopsony occurs in this case. An example is a government in the rocket and space technology market.
When there's only one buyer
200
After studying these molecules taken from the pages of the ancient Gospel, Oxford scientists determined that the manuscript was written on parchment made from calf, sheep, and goat skins.
DNA
200
The "cartoon series" coins issued in Russia featured the Wolf and the Hare, Winnie the Pooh, and three other characters from popular cartoons of the 2000s.
Alyosha Popovich, Dobrynya Nikitich, and Ilya Muromets
200
This warehouse is located at Kotelniki station and is open from 8 a.m. to 8 p.m. Remember this—you might need it.
Lost and Found
200
The northwest of the Iberian Peninsula is known as a kind of Spain: due to the proximity of the ocean, the climate here is humid and vegetation is lush.
Cornisa Cantábrica / Green Spain
200
Traders are classified as bulls and bears.Which of these twobelieves in the positive market dynamic?
Bulla are optimists who believe the market will rise; Bears are pessimists who expect the market to dip.
300
hysicists from the US and Canada have created a camera capable of shooting ten trillion frames per second and were able to record precisely its movement.
Photon; light
300
Alexandre Dumas received exactly this kind of payment for his novels. And he spared no paper creating multi-page dialogues of one or two words.
Payment per line
300
The crossing between Paveletskaya stations on the Circle and Zamoskvoretskaya lines holds the Moscow Metro this record (exept the Moscow Central Circle).
Longest crossing
300
The artist Piermatteo d'Amelia, in keeping with the fashion of the time, painted it blue and decorated it with gold stars. But his successor really went all out...
Sistine Chapel Ceiling
300
A century and a half ago, British merchant Pryce-Jones compiled a catalog of his goods and pioneered this trade. Its global turnover is now estimated at $100 billion.
Mail order sales
400
In the 1940s, Swiss engineer Georges de Mestral noticed thorns sticking to his dog's clothing. He examined them under a microscope and discovered that the thorns had small hooks that adhered well to fabric. This idea inspired Mestral to create THIS fastening system.
Velcro
400
Analysts have calculated that 21-year-old model Kylie Jenner has become the youngest billionaire in history. And among precisely such people, which is no easy thing.
Those who made their money themselves
400
The Kakhovka Line has become part of this and is no longer the shortest line in the Moscow metro.
Big Circle Line
400
In the middle of the 19th century, the Englishman John Herschel invented the cyanotype. In everyday life, copies of drawings produced using cyanotype were nicknamed "blueprints."
"Blueprints"
400
The GBP/USD currency pair is known as "The Cable." The name stems from this fact.
Before the advent of satellites and fiber optics, the London and New York Stock Exchanges were connected by a giant steel cable that ran under the Atlantic.
500
What is this cutting board connected to?
To a bird feeder
500
In the Pacific island nation of Micronesia, enormous stones were used as currency. When buying and selling, they weren't moved, but this was done to show that a deal had been made, as a single "stone" could weigh up to four tons.
The new owners' names were carved into the surface
500
The name of the "University" station on the track wall is the first to be written this way.
With a capital letter (previously, all the letters were the same).
500
In the 19th century, English chemist William Perkin invented the inexpensive synthetic dye mauveine, instantly stripping the color of its aristocratic aura.
Violet (more correctly, purple)
500
This is what was mined in the city of Tegaza in the middle of the Sahara and sold to passing caravans for gold. Local residents even used pieces of it as currency.
Salt