QUES: Feynman was a keen popularizer of physics through both books and lectures, including a 1959 talk on top-down nanotechnology called There's Plenty of Room at the Bottom, and the three-volume publication of his undergraduate lectures, The Feynman Lectures on Physics. Feynman also became known through his semi-autobiographical books Surely You're Joking, Mr. Feynman! and What Do You Care What Other People Think? and books written about him, such as Tuva or Bust! and Genius: The Life and Science of Richard Feynman by James Gleick.

What was the name of Feynman's 1959 talk on nanotech?
What is the answer?
ANS: There's Plenty of Room at the Bottom
QUES: In its first century and half, the EIC used a few hundred soldiers as guards. The great expansion came after 1750, when it had 3000 regular troops. By 1763, it had 26,000; by 1778, it had 67,000. It recruited largely Indian troops, and trained them along European lines. The company, fresh from a colossal victory, and with the backing of its own private well-disciplined and experienced army, was able to assert its interests in the Carnatic region from its base at Madras and in Bengal from Calcutta, without facing any further obstacles from other colonial powers.

in 1778 most of the troops that the EIC had were from where?
What is the answer?
ANS: Indian
QUES: In nature, the red color of blood comes from hemoglobin, the iron-containing protein found in the red blood cells of all vertebrates. The red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide. It also causes the red color of the planet Mars. The red sky at sunset and sunrise is caused by an optical effect known as Rayleigh scattering, which, when the sun is low or below the horizon, increases the red-wavelength light that reaches the eye. The color of autumn leaves is caused by pigments called anthocyanins, which are produced towards the end of summer, when the green chlorophyll is no longer produced. One to two percent of the human population has red hair; the color is produced by high levels of the reddish pigment pheomelanin (which also accounts for the red color of the lips) and relatively low levels of the dark pigment eumelanin.

Why does a sky turn red when the evening comes?
What is the answer?
ANS:
Rayleigh scattering