Sciences
/ 10
What planet makes one revolution around the sun in 248 years?
1Pluto
2Saturn
Good Answer!
Pluto's orbital period is currently about 248 years. Its orbital characteristics are substantially different from those of the planets, which follow nearly circular orbits around the Sun close to a flat reference plane called the ecliptic.
Wrong Answer!
Pluto's orbital period is currently about 248 years. Its orbital characteristics are substantially different from those of the planets, which follow nearly circular orbits around the Sun close to a flat reference plane called the ecliptic.
Sciences
/ 10
On which French river did Claude François Jouffroy d'Abbans' steamer Palmipède sail in 1776?
1The Doubs
2The Durance
Good Answer!
The French steamer the Palmipède by Claude François Jouffroy d'Abbans, which sailed on the Doubs in 1776, was one of the very first versions of a steamboat.
Wrong Answer!
The French steamer the Palmipède by Claude François Jouffroy d'Abbans, which sailed on the Doubs in 1776, was one of the very first versions of a steamboat.
Sciences
/ 10
How many natural satellites does the Earth have?
11
22
Sciences
/ 10
What is the name of the military submarine invented by David Bushnell in 1775?
2Turtle
1Shark
Good Answer!
The Turtle is the first military submarine to be used in battle. It was invented in 1775 by David Bushnell in Connecticut. It is the first submarine and also the first known marine vehicle to be propelled by a propeller.
Wrong Answer!
The Turtle is the first military submarine to be used in battle. It was invented in 1775 by David Bushnell in Connecticut. It is the first submarine and also the first known marine vehicle to be propelled by a propeller.
Sciences
/ 10
When did the French confectioner Nicolas Appert invent canned can?
11795
21895
Good Answer!
The canned can was invented in 1795 by the French confectioner Nicolas Appert (1749-1841). He used glass containers, such as champagne bottles with widened necks. The process met with moderate success and was gradually introduced in other European countries and then in America, after Nicolas Appert published his discovery in 1810.
Wrong Answer!
The canned can was invented in 1795 by the French confectioner Nicolas Appert (1749-1841). He used glass containers, such as champagne bottles with widened necks. The process met with moderate success and was gradually introduced in other European countries and then in America, after Nicolas Appert published his discovery in 1810.
Sciences
/ 10
What NASA program was aimed at putting a man on the moon?
1Apollo
2Discovery
Good Answer!
The Apollo space program conducted during the period 1961-1975 enabled the United States to send men to the Moon for the first time.
Wrong Answer!
The Apollo space program conducted during the period 1961-1975 enabled the United States to send men to the Moon for the first time.
Sciences
/ 10
Which entrepreneur and business leader founded SpaceX on May 6, 2002?
1Elon Musk
2Jeff Bezos
Good Answer!
SpaceX, officially Space Exploration Technologies Corporation, is an American company working in the field of astronautics and space flight and was founded on May 6, 2002 by billionaire entrepreneur Elon Musk.
Wrong Answer!
SpaceX, officially Space Exploration Technologies Corporation, is an American company working in the field of astronautics and space flight and was founded on May 6, 2002 by billionaire entrepreneur Elon Musk.
Sciences
/ 10
Which French military engineer built the first motor vehicle ?
2Nicolas Joseph Cugnot
1Charles Jeantaud
Good Answer!
Nicolas Joseph Cugnot is a French military engineer, known to have designed and built, between 1769 and 1771, the first motor vehicle ever built. It is an artillery gun carriage, powered by a two-cylinder steam engine, preserved in perfect condition in the Musée des Arts et Métiers in Paris.
Wrong Answer!
Nicolas Joseph Cugnot is a French military engineer, known to have designed and built, between 1769 and 1771, the first motor vehicle ever built. It is an artillery gun carriage, powered by a two-cylinder steam engine, preserved in perfect condition in the Musée des Arts et Métiers in Paris.
Sciences
/ 10
What unit of temperature is currently used in the United States?
2Fahrenheit
1Celsius
Good Answer!
The Fahrenheit scale is now used in the United States, Belize, the Cayman Islands, and Liberia. In Canada, it is customarily used as a complementary scale. In other Commonwealth countries, where it was widely used, it has been replaced by the Celsius scale.
Wrong Answer!
The Fahrenheit scale is now used in the United States, Belize, the Cayman Islands, and Liberia. In Canada, it is customarily used as a complementary scale. In other Commonwealth countries, where it was widely used, it has been replaced by the Celsius scale.
Sciences
/ 10
How many astronauts in the Apollo space program have walked on the moon?
212
19
Good Answer!
Twelve astronauts walked on the Moon, all Americans (as part of the Apollo program from July 1969 to December 1972).
Wrong Answer!
Twelve astronauts walked on the Moon, all Americans (as part of the Apollo program from July 1969 to December 1972).
