Compound bar, or bimetallic strip is made of two different metals, such that one side is brass and the other side is iron, has a unique property that makes it very useful in certain situations. You may ask, just exactly what is that property that makes it so unique. The fact that not all metals expand at the same rate is the property that makes the compound bar unique. The bar or strip of metal bends as heat is applied to the compound bar or strip, one expands faster then the other resulting in this bending. You may ask where would you use such a metal, well for starters in any situation where heat is used. If you coil it into a spring and attach a pointer at the end of the spring, and place a circular temperature scale around it, you now have a thermometer, with a dial. Usually found or used outdoors because they can be very large, however, on the other hand they can be very small, as your house thermostat. This thermostat in turn can be attached to a special switch that controls the power to your gas or oil heater. It is a very useful device in the car heating system, specifically in the radiator. A device known as a thermostat, it is a circular bimetallic strip, with a valve in the center and placed into the radiator water line, and if working you will have heat in the winter, if not the opposite is true. So, you can see that there are many useful devices, where it can be used. It is this uneven bending of the metals that produces this useful characteristic.

Lets consider the following statue that was given to the Israelites. Deuteronomy 22:10 Thou shalt not plow with an ox and an ass together. Both were beasts of burden, the ox a powerful beast and very much larger then the donkey. Now, the ox used to pull wagons, or carts, which would be a box with two wheels on it, or a plow. An ox is a bull that cannot reproduce; as such it was fairly docile as opposed to a regular bull. Usually it would always be a pair of oxen, this would make it easier to attach the wooden plow, by attaching the plow to the wooden yoke. It would be difficult to attach a plow to a single ox, so if the individual would be poor and had only one ox, he would be tempted to use a donkey, the standard mode of transportation. But, the Israelites were forbidden to plow with an ox and a donkey together. For one thing, it would very difficult to plow a straight furrow or line, because you would be curving in the direction of the ox, because of its strength, and the donkey would have a hard time keeping up with the ox. It was God's way of protecting the donkey from abuse, so in order to get the plowing done, the Israelite would have to barrow an ox or a donkey to get this field plowed.

The same could be said of the following verse: 2 Corinthians 6:14 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? This passage is speaking about marriage, in the fact that a believer should not marry a none believer. Why, because God's concern for your welfare, two people attached to the same yoke ( marriage ) are going to pull in different directions, or not pulling as hard in the same direction. Resulting in an uneven plowing, resulting in crooked furrow, or lines in life. It is like trying to drive though life with two different sizes of tires on the car, it is OK when you are traveling straight, but as soon as you apply the brakes, for whatever reason, you are guaranteed to have a crash. In most states if not in all states, it is against the law to put on a car and on the same axle, tires of different composition, like belted tires and none belted tires, or studded and one plain. This is exactly what had happened one evening in front of my house, which was located on a gradual curve. This young couple came to this curve, and the driver applied his brakes just slightly, well, the car went violently off the curve, and hit a tree, a very serious accident occurred, because of the different tires that were on the same axle.

By

Pete P. Repich

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