Community Magazine July 2014

Mailbag TAMMUZ 5774 JULY 2014 97 What is fog? Submitted by Cynthia of Eatontown, NJ The air absorbs water vapors in a quantity that depends on the air temperature. The higher the temperature, the greater the quantity of water the air can absorb. If the temperature falls, the air will emit the water vapors it has absorbed. When the air emits the water vapors, we call this phenomenon “fog.” There are different types of fog. Radiation fog is formed above ground particularly at night, when the earth loses its heat. When the earth level heat goes down below a marginal temperature called “the dew point,” fog is created. Advection fog occurs when moist and relatively warm air that passes over the cold sea waters cools down, and small drops of water form, making visibility difficult. To: Noe Ital The Professor's Why do horses need shoes? Submitted by Ezra of Brooklyn, NY. In the wild, horses live on open ranges and gallop on earth or grassland. Its hooves are designed for such grounds. Domesticated horses, however, were used as vehicles for transportation, and trotted on paved roads. Hard roads ground the horses’ hooves, damaging their fitness, and so people realized that they must “shoe” the horse. Clearly, our shoes were not suitable for horses, and thus more “horsy” shoes needed to be invented. And so they came up with the iron “horseshoe” which protects the horse’s natural hoof. Attaching the horseshoe to the leg of the horse is called “ horseshoeing ,” and the specialist in this job is called a blacksmith. Why does bread dry out and harden? Submitted by Joey of Brooklyn, NY Bread and other kinds of food harden when they are a few days old, because the water contained in them evaporates and leaves behind only the solid and dry substances. By wrapping the bread with a bag, we can prevent the water from evaporating, and so the bread does not dry out. What are Saturn’s rings made of? Submitted by David of Lakewood, NJ Saturn, the sixth planet in order of distance from the Sun, is the second largest planet in the solar system. This planet is a giant orb with an oblate (flattened) shape, close to an ellipse, decorated with rings and moons. Planet Saturn is different from Earth. It’s not made of solid ground and has no mountains, oceans, or rivers. Saturn is a planet made up of various gases. Saturn has thousands of beautiful rings surrounding it. The rings are wide and shine with a dazzling light and stretch across great distances. These rings are made up of fragments of ice and rock, with sizes ranging from that of a dust particle to the size of a house, which constantly revolve in a high-speed orbit around Saturn. Professor Noe Ital is the property of 'The Jewish World of Wonders'.