#905 What is the difference between a slave and a serf?
What is the difference between a slave and a serf? A slave is the property of the person who owns them while a serf is bound to the land they…
What is the difference between a slave and a serf? A slave is the property of the person who owns them while a serf is bound to the land they…
Why do we hiccup? Hiccups are caused by muscular twitches in the diaphragm. The diaphragm is the muscle that we use to breathe. It is a dome shaped muscle that…
Why does hair turn white? The pigment cells in the hair follicles die. Our hair is colored by melanin that is produced by the pigment cells in each hair follicle.…
Why does the medical symbol have a snake and a staff on it? It is the Rod of Asclepius, an ancient symbol of medicine. If you have the misfortune to…
Alexander Cumming invented the S-bend in 1775. Toilets have existed for thousands of years, but the S-band (now the U-bend) was an invention that helped transition to indoor toilets and…
Why are blueberries blue and strawberries red? Because of the animals the plants want to eat their fruit. Flowers and fruit tend to be a certain color because they have…
What is a crusade? It is a Catholic expedition called forth by the pope for various religious purposes. If it doesn’t have the pope’s blessing, it is not a crusade.…
What is the golden ratio? It is 1.618. The golden ratio appears in nature, in art, in buildings, and in logos, along with countless other places. It is called the…
Why are poppies a symbol of remembrance? Because of a poem by a Canadian doctor called John McCrae. The poem was called “In Flanders Fields”. And because of an American…
How big was a Megalodon? The largest ones could have been 20 meters long. Megalodon was a species of giant mackerel shark. Mackerel sharks have two dorsal fins, an anal…