Correct Answer : Vacuum
When travelling through air, the speed of sound is about 330 metres per second (m/s). Sound cannot travel through a vacuum because there are no particles to carry the vibrations.
Correct Answer : 33.8
Correct Answer : 24
The rib cage surrounds the lungs and the heart, serving as an important means of bony protection for these vital organs.In total, the rib cage consists of the 12 thoracic vertebrae and the 24 ribs, in addition to the sternum.
Correct Answer : Proxima Centauri
Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away. (Or about 268,770 AU.)
Correct Answer : Ampere
The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 ×10⻹⹠when expressed in the unit C, which is equal to A s, where the second is defined in terms of ∆νCs
Correct Answer : Hans Lipperhey
The first person to apply for a patent for a telescope was Dutch eyeglass maker Hans Lippershey (or Lipperhey). In 1608, Lippershey laid claim to a device that could magnify objects three times. His telescope had a concave eyepiece aligned with a convex objective lens. One story goes that he got the idea for his design after observing two children in his shop holding up two lenses that made a distant weather vane appear close. Others claimed at the time that he stole the design from another eyeglass maker, Zacharias Jansen.
Correct Answer : 1729
The Hardy-Ramanujan number stems from an anecdote wherein the British mathematician GH Hardy had gone to meet S Ramanujan in hospital. Hardy said that he came in a taxi having the number '1729', which the British mathematician described "as rather a dull one".
Correct Answer : Trinity College
Ramanujan was the first Indian to be elected to a fellowship at Trinity College, Cambridge, and it is interesting that two of the successful candidates (S. Chandrasekhar and S. Chowla) are both Trinity men
Correct Answer : Antarctica
Dakshin Gangotri was the first scientific base station of India situated in Antarctica, part of the Indian Antarctic Programme. It is located at a distance of 2,500 kilometres (1,600 mi) from the South Pole.
Correct Answer : Solar Strom
