Uncontrolled water can be the most lethal weapon in this world. The power is often displayed by the strong jet of water sprayed to disperse crowds. While the calm waters are soothing to the senses and we often go to the beaches for relaxing, there are certain areas where we never welcome water. For instance on ships and submarines, water is best as long as it is kept outside. If water enters in them then there is no stopping to the catastrophe that follows.

The submarine is one of the most powerful weapons used by the Navy of the United States. The huge fleet of the submarines owned by the country is one of the finest available today. They are not only expensive, but they are also well equipped and have a fair number of crew in them.

Keeping an eye out for anything fishy, these submarines are always present in the depths of the waters. It is a perfect example of strength below the water as long as it is perfectly waterproof. ... Read more »

Everyone would agree to the fact that to learn about the level of liquid inside a container, it is best to open the lid and take a look inside. We have a variety of jars, bottles and cans in our houses in which we keep an assortment of liquids. Whenever we need to learn about the liquid level in it, all we do is open the lid and take a look inside.

The human being is never satisfied without learning for sure about anything he inquires. And the best judge in the case of liquid measurements is our eyesight. But what would one do to measure the level of a container that is larger than a human being. Or what about a container that has no lid at all and is made of an alloy that does not allow the eyesight to look beyond its outer wall? Nevertheless, we need a liquid level indicator in this case ... Read more »