Top 10 discoveries factsDiscoveries quiz
Which astronomical discovery was nicknamed 'Little Green Man'?
Pulsar. In 1967 Jocelyn Bell Burnell and Antony Hewish first observed pulses separated by 1.33 seconds, originated from the same location on the sky. It was not until a second pulsating source was discovered in a different part of the sky that the "LGM hypothesis" was entirely abandoned.
When was the circumference of the Earth calculated for the first time with remarkable accuracy (13.6% of error)?
In 3rd century B.C. Eratosthenes of Cyrene was the chief librarian at the Library of Alexandria. He is best known for being the first person to calculate the circumference of the Earth. He did it by measuring Sun's angle of elevation at noon on the solstice in Alexandria, knowing, that at the same time the Sun is at Zenith in the Ancient Egyptian city of Swenet, 5000 stades from Alexandria. Seventeen hundred years after Christopher Columbus studied Eratosthenes writings and decided that the calculations were wrong, and the Earth must be smaller - which led him to seek India in the west.
Which moons are called "Galilean moons"?
Moons of Jupiter. The four largest moons of Jupiter were discovered in 1610 by Galileo Galilei and are today known as the Galilean moons. From the end of the 19th century, dozens of much smaller Jovian moons have been discovered and have received the names of lovers or daughters of the Roman god Jupiter or his Greek equivalent Zeus.
Who received the first Nobel Prize in physics in 1901?
Wilhelm Röntgen. Wilhelm Conrad Röntgen German: was a German mechanical engineer and physicist, who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the first Nobel Prize in Physics in 1901.
Who discovered the first planet outside the Solar System?
A. Wolszczan and Dale Frail. Aleksander Wolszczan (born 29 April 1946 in Szczecinek, Poland) is a Polish astronomer. He is the co-discoverer of the first extrasolar planets and pulsar planets.
Which physician discovered that contaminated water was the source of the cholera epidemic in London in 1854?
John Snow was an English physician and a leader in the adoption of anaesthesia and medical hygiene. He is considered one of the fathers of modern epidemiology, in part because of his work in tracing the source of a cholera outbreak in Soho, London, in 1854. His findings inspired fundamental changes in the water and waste systems of London, which led to similar changes in other cities, and a significant improvement in general public health around the world.