Not AI But Real Answers By Experts!
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Snow is really nothing more than frozen water. Then why doesn’t it look like ice? There are a large number of ice crystals in each snow8ake, and the reflection of light from all the surfaces of the crystals makes it look white. Snow begins to be formed when water vapor in the atmosphere freezes. Tiny crystals … Read more
It seems like such a simple thing for us to sniff something and smell it. But the process of smell, and the whole subject of odor, is quite a complicated thing. Man’s sense of smell is poorly developed compared to that of other creatures. Man’s organ of smell is located in the nose; at least; this … Read more
Millions of years ago, fine-grained clay particles settled on the bottoms of lakes and inland seas and formed a soft mud. This later hardened into the mud-rock that is called “shale”. During this period, the earth’s crust moved and shifted. The layers of shale, covered by beds of other rocks, wore folded up into wrinkles. … Read more
Ringworm is a very common disease of the skin. The medical name for it is “tinea”, and it is caused by a fungus infection. You usually see ringworm on the arms and legs. The most common form of it is one, or several, raised round soles on the skin. They seem to heal in the … Read more
Rheumatism is actually a disease. It is an inflammation of the joints of the body. Unless the disc is checked, the condition becomes worse and eventually, the person becomes disabled. The disease begins with an inflammation of the membrane which lines a joint, such as a knee, elbow, or wrist. The cartilage is also attacked, … Read more
Rheumatic fever is a disease of the heart that usually affects only young people. Unfortunately, this disease may result in serious and permanent injury to the heart, so that a person who has had it may have to be careful. But he should still be able to lead a fairly active life. The cause of … Read more
If you own a chair, motor car, or farm tool, it can be stolen, lost, or destroyed. If you went to court to recover such property, you could only be compensated for it if it were lost or destroyed. But if you owned land, and for some reason, the land was taken from you, the … Read more
The flower is the means by which the plant can reproduce new plants like itself. A botanist defines a flower as a group of parts whose function is to produce pollen or seeds or both. The most important parts of the flower, from this point of view, are“pistils” and “stamens”. Many flowers contain both, the pistil or pistils in the center, surrounded by the … Read more
Platinum is a metal—but what an amazing metal it is! It is greyish white in color, and its name comes from the Spanish Plataand means “little silver”.Platinum is harder than copper and almost as pliable as gold. You could take a single ounce of platinum and stretch it out into a fine wire that would … Read more
The words “perpetual motion” by themselves just mean motion that goes on forever. But usually, when we say perpetual motion we are referring to a very special thing. For hundreds of years, men have had the dream of creating a machine that, once it is set in motion, would go on doing useful work without … Read more