If cared for properly, green iguanas can live more than 20 years. But they do indeed grow
and grow along the way. Although iguanas make popular pets, they need lots of time, attention, care, and room to grow. A healthy iguana will grow to be 5 to 6 feet (1.5 to 1.8 meters) in length, and will require a very large cage or an entire room to live in. Iguanas need tall cages because they are tree-dwelling (arboreal) creatures, and prefer to spend the majority of their time as high off the ground as possible. Iguanas also need a special diet, plenty of sun, places to climb, and human interaction and stimulation.
In 1801, while second in command of a British fleet near Copenhagen, Horatio Nelson was told that his commander had sent up flags ordering a retreat. Nelson lifted his spyglass to his previously blinded eye and said he couldn’t see the order, and then he ordered and led a successful attack. Nelson’s insubordination became legend and gave us the expression “turn a blind eye.”
In British courts, both judges and attorneys wear wool wigs, a custom that originated in the eighteenth century. The judge’s wig is larger than the lawyer’s, so he’s often called the “bigwig.” When a crafty lawyer wins at trial against all odds, it’s as though the lawyer had blinded the judge with his own wig. It’s said he just had “the wool pulled over his eyes.”
Alligators are slightly larger and more bulky than crocodiles. A wild alligator can reach up to 13 feet (3.9 meters) in length, and weigh up to 600 pounds (272 kilograms). Besides the two animals’ size difference, the easiest way to tell them apart is by their snout. A crocodile has a very long, narrow, V-shaped snout, while the alligator has a wider, U-shaped snout. The alligator’s wide snout delivers more crushing power to eat prey like turtles, which make up a large part of the animal’s diet. The crocodile’s upper and lower jaws are nearly the same width, so its teeth are exposed all along the jaw line in an interlocking pattern, even when its mouth is closed. An alligator, on the other hand, has a wider upper jaw, so when its mouth is closed the teeth in the lower jaw fit into sockets of the upper jaw, hidden from view. South Florida is the only known place in the world where crocodiles and alligators live together in the same area.
It wasn’t until the end of the fifteenth century that the Italian printer Aldus Manutius introduced the system of markings we call punctuation. The proper use of punctuation marks is a learned skill that has eluded even great writers ever since. Mark Twain once filled the last page of a manuscript with all the various symbols of punctuation and instructed his editor to disperse them within the story as he saw fit.
There hasn’t been a movie made in Hollywood since 1911, when, fed up with ramshackle sets and the chaotic influence of hordes of actors and crews, the town tossed out the Nestor Film Company and wrote an ordinance forbidding the building of any future studios. Even so, the magic of the name was already established, and so the industry we call Hollywood grew up around that little town in such places as Burbank, Santa Monica, and Culver City — but not in Hollywood.
Computers developed from calculating machines. One of the earliest mechanical devices for calculating, which is still widely used today, is the abacus—a frame for carrying parallel rods on which beads or counters are strung. The abacus originated in Egypt in 2000 B.C.E. It reached the Orient about a thousand years later, and arrived in Europe in about the year 300 C.E. In 1617, the Scottish scholar John Napier invented “Napier’s Bones”—marked pieces of ivory for multiples of numbers. In the middle of the same century, the French mathematician Blaise Pascal produced a simple mechanism for adding and subtracting. Multiplication by repeated addition was a feature of the stepped drum or wheel machine of 1694, invented by the German mathematician Gottfried Wilhelm Leibniz.
All will fall at the same speed in vacuum because there will be no air resistance and the earth?s gravity will exert a similar gravitational pull on all.
When death occurs, blood—which carries oxygen to all the cells of the body— has stopped circulating. This stoppage may be caused by damage to the heart, which is the muscle that pumps blood throughout the body, or by damage to the brain, which gives the signals that direct the heart to do its pumping. (Other circumstances, like severe accidents, also stop blood flow.) But whatever the reason, once blood stops bringing its life-giving oxygen to the body’s billions of cells—the building blocks that make up the human body—the death of those cells starts to occur. When the brain, which is the body’s command center, goes without oxygen for about 15 minutes, all cells there die. While machines can help our lungs breathe or our hearts pump blood, no machine can assume the complex functions of the brain. Without a brain, we cannot live. Soon after a person dies, an official document called a death certificate is filled out and later filed as a record with the local government. It includes such information as time, place, and cause of death.
Saying “please” and “thank you” is a part of etiquette, or good manners. And good manners make both your home and the world a more thoughtful and generous place. The words “please” and “thank you” are special words because they make dealing with other people go more smoothly. People have to ask for help or permission all the time. Saying “please” shows that your request also comes with respect for the person you are asking. People are usually more willing to fulfill the requests of those who treat them with respect. And after someone gives you something or assists you, it is polite to say “thank you” to show your appreciation. Someone whose actions are appreciated will be more likely to help you out or be generous again.