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Why Gray Hair Grows

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It's hard to imagine that those lovely locks of blond or brunette hair on your head may someday change color so dramatically. But your hair doesn't turn white from a lifetime of watching really scary horror movies. Instead, it's actually revealing its natural beauty. Hair loses much of its color because it's losing its melanin or carotene, which are your body's natural coloring substances (also known as pigments). As you grow older, the pigment production in hair follicles slows down and may eventually stop, cutting off your hair's supply of coloring and making it appear gray or white. But your entire head of hair won't turn gray overnight; after all, this is a process that takes about 10-20 years. 


So when exactly will your hair start turning gray? It'll probably depend on your own biological time-clock, as set by the genes you've inherited from your parents, your parents' parents, and beyond. And that explains why some people get gray hair while they're still in their teens and twenties--the melanin-producing cells of those people were set to stop working much sooner than others. But if this happens to you, don't fret over your follicles. There's nothing wrong with showing maturity at an earlier age! 


Are bats really blind?

Those who believe bats are blind just can't see the truth themselves. In reality, all bats can see. Many of t
hem, in fact, can see really well, even in dim light. Most fruit-eating bats, for example, have large bulging eyes that help them find their way and locate food by sight. But other bats, especially those that hunt for insects at night, need to rely a lot more on other senses in the dark. These winged wonders make up for low visibility by "seeing" with their ears, and they do this by using a technique called echolocation. A bat echolocates by sending out streams of high-pitched sounds through its mouth or nose. These signals then bounce off nearby objects and send back echoes. By "reading" these echoes with its super-sensitive ears, the bat can determine the location, distance, size, texture and shape of an object in its environment. In some cases, a bat can even use echoes to tell insects that are edible apart from those that aren't. And even bats which have been blinded can catch their food without a hitch this way.

Curious about what bats sound like when they're echolocating? Sorry to say, but your ears alone won't tell you. Those sounds are so high-pitched, they're beyond the range of human hearing. But if you borrow a scientist's bat detector, a handy gadget that converts bat calls to sounds people can hear, you can indeed listen in and make the mysterious world of bats a little less

Did God create everything that exists? Does evil exist? Did God create evil?

Did God create everything that exists? Does evil exist? Did God create evil?

A University professor at a well known institution of higher learning challenged his students with this question. "Did God create everything that exists?"


A student bravely replied, "Yes he did!"


"God created everything?" The professor asked.


"Yes sir, he certainly did," the student replied.


The professor answered, "If God created everything; then God created evil. And, since evil exists, and according to the principle that our works define who we are, then we can assume God is evil."


The student became quiet and did not answer the professor's hypothetical definition. The professor, quite pleased with himself, boasted to the students that he had proven once more that the Christian faith was a myth.


Another student raised his hand and said, "May I ask you a question, professor?"


"Of course", replied the professor.


The student stood up and asked, "Professor, does cold exist?"


"What kind of question is this? Of course it exists. Have you never been cold?"


The other students snickered at the young man's question.


The young man replied, "In fact sir, cold does not exist. According to the laws of physics, what we consider cold is in reality the absence of heat. Every body or object is susceptible to study when it has or transmits energy, and heat is what makes a body or matter have or transmit energy. Absolute zero (-460 F) is the total absence of heat; and all matter becomes inert and incapable of reaction at that temperature. Cold does not exist. We have created this word to describe how we feel if we have no heat."


The student continued, "Professor, does darkness exist?"


The professor responded, "Of course it does."


The student replied, "Once again you are wrong sir, darkness does not exist either. Darkness is in reality the absence of light. Light we can study, but not darkness. In fact, we can use Newton's prism to break white light into many colors and study the various wavelengths of each color.


You cannot measure darkness. A simple ray of light can break into a world of darkness and illuminate it. How can you know how dark a certain space is? You measure the amount of light present. Isn't this correct? Darkness is a term used by man to describe what happens when there is no light present."


Finally the young man asked the professor, "Sir, does evil exist?"


Now uncertain, the professor responded, "Of course, as I have already said. We see it everyday. It is in the daily examples of man's Inhumanity to man. It is in the multitude of crime and violence everywhere in the world. These manifestations are nothing else but evil.


To this the student replied, "Evil does not exist, sir, or at least it does not exist unto itself. Evil is simply the absence of God. It is just like darkness and cold, a word that man has created to describe the absence of God. God did not create evil. Evil is the result of what happens when man does not have God's love present in his heart. It's like the cold that comes when there is no heat, or the darkness that comes when there is no light."


The professor sat down.


The young man's name - Albert Einstein