The article Stammering, which tells you that men are much oftener afflicted than women, is one that all parents should read. If a child’s speech is carefully watched, the first trouble of this kind may sometimes be checked before it becomes a habit.
Why does a room look smaller with red than with violet wall-paper?
Read the article Vision and you will understand this and many other curious facts about the way our eyes do their work. Furthermore, you will be reminded that slight defects in a child’s sight should be noticed and treated by an oculist before permanent harm has been done.
Why is winter colder than summer?
Simply because the sun’s rays, coming aslant instead of from overhead, travel through more miles of air and are thus robbed of much of their heat before they reach us. The polar regions actually get more hours of sunlight in a year than we get in the United States, more even than there are at the equator, but the sun is never high above the horizon at the poles.
Can a snake cross a frozen pond?
No, nor move on any other smooth surface, as the article Snakes shows.
How long was Abraham Lincoln at school?
Less than a year in all, as shown by the article Lincoln, Abraham, by J. G. Nicolay (Lincoln’s private secretary) and C. C. Whinery. But although he could not get much teaching, he read over and over again every book he could get hold of.
Here are a few questions without the answers; but the numbers after each question show the volume and page of the Britannica where each answer can be found: