In this video, you can listen to the interesting real life story of how foreknowledge of lunar eclipse on 29th Feb 1504 helped Columbus exploit the innocence of natives of Americas (Jamaica) to get access rights to their territory and also to get them feed all the Spaniard sailors accompanying him.
All of us know that we need a pump to take water...
National Science Day Celebrated in our school : ...
...
Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulphate (CuSO4) and slaked lime (Ca(OH)2) used as a fungicide. It is used in vineyards, fruit-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed...
Epsom salt is a magnesium sulfate compound, unlike sodium table salt. Epsom salt has been used for hundreds of years as a healing agent and pain reliever. Today, it's most often added to hot baths and foot soaks to reduce stress. Why is it called Epsom salt? Find out...
Nails are most commonly used to fasten pieces of wood together, but they are also used with plastic, drywall, masonry, and concrete. Nails are usually made of steel but can also be made of stainless steel, iron, copper, aluminium, or bronze. In this video, you can...
The potato is a root vegetable native to the Americas, a starchy tuber of the plant Solanum tuberosum, and the plant itself is a perennial in the nightshade family, Solanaceae. Wild potato species, originating in modern-day Peru, can be found throughout the Americas,...