1.
GPS is an abbreviation for:
Correct Answer
A. Global Positioning System
Explanation
GPS stands for Global Positioning System. It is a satellite-based navigation system that allows users to determine their precise location anywhere on Earth. The system consists of a network of satellites, ground control stations, and user receivers. By receiving signals from multiple satellites, GPS receivers can calculate the user's latitude, longitude, and altitude. This technology is widely used in navigation, mapping, surveying, and various other applications.
2.
What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?
Correct Answer
B. Tv
Explanation
Vladimir Kosma Zworykin is credited with the invention of the television. He was a Russian born American inventor who made significant contributions to the development of television technology. Zworykin is known for his work on the iconoscope, which was one of the first practical television cameras. His inventions and innovations played a crucial role in the advancement of television broadcasting and paved the way for the modern TV that we use today.
3.
Who introduced WWW (World Wide Web) to us?
Correct Answer
C. Tim Berners-Lee
Explanation
Tim Berners-Lee is credited with introducing the World Wide Web (WWW) to us. He is a British computer scientist who developed the concept of the WWW while working at CERN in the late 1980s. Berners-Lee created the first web browser, the first web server, and the first web pages, laying the foundation for the modern internet as we know it today. His invention revolutionized communication and information sharing, making the internet accessible to the general public and changing the way we interact with technology.
4.
Who is the only U.S. President to invent and patent something?
Correct Answer
D. Abraham Lincoln
Explanation
Abraham Lincoln is the only U.S. President to invent and patent something. He received a patent for a device to lift boats over shoals and obstructions in a river, which he called "A Device for Buoying Vessels Over Shoals." This invention showcased Lincoln's innovative thinking and problem-solving skills, demonstrating his ability to contribute to technological advancements even while serving as President.
5.
What did Laszlo Biro invent?
Correct Answer
B. Ballpoint pen
Explanation
Laszlo Biro is credited with inventing the ballpoint pen. This invention revolutionized writing instruments as it eliminated the need for messy inkwells and provided a more convenient and reliable writing tool. The ballpoint pen uses a small rotating ball at the tip that transfers ink onto the paper, resulting in smooth and consistent writing. This invention has become a staple in everyday life and is widely used around the world.
6.
Who invented x-ray machine?
Correct Answer
A. Wilhelm Röntgen
Explanation
Wilhelm Röntgen is credited with inventing the x-ray machine. He discovered x-rays in 1895 while experimenting with cathode rays. Röntgen noticed that a fluorescent screen in his lab began to glow even though it was not directly exposed to the cathode rays. He realized that a new type of ray was being emitted, which he called x-rays. Röntgen's discovery revolutionized the field of medicine by allowing doctors to see inside the human body without invasive procedures. His invention of the x-ray machine has had a profound impact on the diagnosis and treatment of various medical conditions.
7.
Who introduced printing with printing press?
Correct Answer
C. Johann Gutenberg
Explanation
Johann Gutenberg is credited with introducing printing with the printing press. He is considered the inventor of the printing press and is known for his contributions to the development of movable type printing in Europe during the 15th century. Gutenberg's invention revolutionized the process of book production, making it faster, cheaper, and more efficient. His printing press allowed for the mass production of books, leading to the spread of knowledge and the democratization of information. Gutenberg's invention had a profound impact on the Renaissance, the Reformation, and the overall advancement of human civilization.
8.
Alexander Fleming discovered what?
Correct Answer
C. Penicilin
Explanation
Alexander Fleming discovered penicillin.
9.
Who discovered dynamite?
Correct Answer
D. Alfred Nobel
Explanation
Alfred Nobel is the correct answer because he is the Swedish chemist and engineer who invented dynamite in 1867. Nobel's invention revolutionized the construction and mining industries, providing a safer and more efficient way to handle explosives. He held numerous patents related to explosives and became a wealthy man due to his invention. Despite the destructive nature of dynamite, Nobel's legacy also includes the establishment of the Nobel Prizes, which are awarded annually in recognition of outstanding achievements in various fields.
10.
What did Tesla invent?
Correct Answer
D. All of the above
Explanation
Tesla is known for his numerous inventions and contributions to the field of electrical engineering. He is credited with inventing alternating current (AC), which revolutionized the transmission and distribution of electricity. Additionally, Tesla made significant contributions to the development of radio technology, although his work was overshadowed by Marconi's later success. Tesla also invented the remote control, which laid the foundation for modern wireless communication and device control. Therefore, the correct answer is "All of the above" as Tesla invented all three: alternating current, radio, and remote control.