Weather is dependent on a number of factors like humidity, atmospheric pressure, ambient temperatures, rains, wind speed and direction and more. Different instruments are used to measure each of these parameters. The meteorological department of each country collects this information to forecast the weather. Anemometer Anemometer is used to measure the direction of the wind,…
This game is played with small crystal balls called as marbles. In this game a player has to shoot out marbles of other contestants out of the playing ring while keeping his marble within the ring. As long as the shooter keeps shooting others marbles out he/she plays his turn or it’s the chance of…
Depth of the sea is measured by two basic methods: by using the acoustic echo sounders on the ships and by using data from the satellite altimeters. As the name suggests, the echo sounders measures the depth of the sea by using echo of sound as measure. The instrument transmits a 10-30 kHz sound and…
Temperature is an indication of the measure of how hot or cold a particular substance is. Temperature is a physical property of a substance. It can be measured using a thermometer. A conventional thermometer contains mercury in a thin vial and is marked with a scale which helps a person read the temperature of a…
Bones are an important part of the human body. They give support, shape and structure to the body and perform special functions to allow movement. At birth, the body of a child has about 350 bones. As the body grows and reaches adulthood, a number of bones fuse together giving 206 bones in the adult…