A. Because the black colour absorbs the heat,—conveys it below the surface of the skin, and converts it to sensible heat and perspiration.
Q. Why does the white European skin blister and scorch when exposed to the hot sun?
A. Because the white will not absorb the heat; and, therefore, the hot sun rests on the surface of the skin, and scorches it.
Q. Why has a negro black eyes?
A. The black colour of a negro’s eyes defends them from the strong light of the tropical sun. If a negro’s eyes were not black, the sun would scorch them, and every negro would be blind.
Q. Why is water kept cooler (in summer time) in a bright tin pot, than in an earthen one?
A. Because bright metal will not absorb the heat of the summer sun, like an earthen vessel.
Q. Why is boiling water kept hot in a bright tin vessel longer, than in an earthen one?
A. Because bright tin will not suffer the heat of the boiling water to escape in rays, as an earthen vessel does.