word meanings of the pendulum

The word Immunity, arises from the latin word 'Immunis' which means 'exempt' or 'freedom'. Immunity refers to all the mechanisms used by the body for protection from external agents which include microorganisms and their products, some food items, chemicals, drug..

Sulphur has been known from ancient times. The ancient Indians, the Inca Indians, Greeks and Romans used sulphur, as a fumigant, and in certain medicines. The word "Sulphur" is probably derived from the Sanskrit word "Sulveri" meaning "enemy of copper" as copper loses ..

The word 'electric' is derived from the Greek word 'elektron' meaning amber. The existence of charges were known when charged particles were produced by rubbing (due to friction) of suitable materials. These facts are demonstrated by simple experiment..

Discovery of Sulphur - Sulphur has been known from ancient times. The ancient Indians, the Inca Indians, Greeks and Romans used sulphur, as a fumigant, and in certain medicines. The word "Sulphur" is probably derived from the Sanskrit word "Sulveri" meaning "enemy of c..

Electric Charge - The word 'electric' is derived from the Greek word 'elektron' meaning amber. The existence of charges were known when charged particles were produced by rubbing (due to friction) of suitable materials. These facts are demonstrated by simple experiment..

A compound must be chiral for it to exhibit optical activity. Chiral is derived from the Greek word cheir meaning hand. A chiral molecule is one that is not super imposable on its reflectio..

Selenium (Se) - 'Seles' Greek name for the moonPlutonium (Pu) - Neptunium (Np) Uranium (U)Mercury was named after a planet but derives its symbol Hg from the Latin word 'Hydragyrum' meaning liquid sil..

The word 'geometry' is derived from the Greek words 'geo' meaning 'earth' and 'metron', meaning 'measuring'. Geometry originated when man felt the need to measure his land. Ancient Egyptians were perhaps the first people to study geometry. Later, the Babyloni..

. When a person speaks, the molecules of air near the mouth of the speaker are disturbed resulting in vibration of these molecules about their mean positions. These vibrating molecules in turn push the nearby molecules and the process continues until the molecules of the air near the list..

History - In the beginning of the 17 t h century, scientists started realising that some form of matter can exist in a form that is similar to air. The Belgian Chemist Jan Baptista van Helmont coined the word Gas by altering the Greek word "Chaos" which means "Space". ..