Radio signals are transmitted using a carrier wave. Radio waves form part of the electromagnetic spectrum. Radio waves with the longest wavelengths are bounced off a layer high up in the Earth’s atmosphere, called the ionosphere. In this way radio messages can be bounced for very long distances. A radio […]
Scholars believe that the scrolls were concealed by members of a religious sect called the Essenes, who lived in the isolated community. They hid the scrolls to keep them safe during political unrest in the area, where they remained hidden for hundreds of years. The dead sea scrolls are religious […]
The reason that flowers come in so many different shapes and colours is to help ensure that they are fertilized. Hmm, do you buy that? Alright, let’s get deeper… A flower is the means by which a plant reproduces. It contains male or female organs or both. Flowers usually have […]
Holy Grail, in medieval literature, the sacred cup used by Jesus Christ at the Last Supper. In Arthurian legend, the knights of King Arthur embark on a quest for the Grail. According to tradition, Joseph of Arimathea kept the Grail after the Last Supper and collected Jesus’ blood in it […]
How do you view a spider web? Do you agree with me that it is a pretty design, neatly woven around; but unfortunately it is now of a trap than a home for spiders. Spiders spin their web from silk which is pumped out from tiny nozzles at the back […]
What do you know about birthstones? Do you know their meaning? For nearly 2000 years, crystals and precious stones have been linked with months of the year. Different religious and cultural groups have associated different stones with different months. Those popular in western culture today are shown here, together with […]
First you must understand that chocolate grows on trees. Chocolate is made from cocoa beans. These beans are the seeds of the cacao, or cocoa, tree.
Chocolate is made by drying and roasting the cocoa beans. The beans are ground and then crushed to release a liquid known as chocolate liquor. This bitter-tasting liquid contains a fat called cocoa butter. Cocoa butter is what makes chocolate so creamy and delicious.
To make powdered cocoa, most of the cocoa butter is squeezed from the unsweetened chocolate liquid. The hard, dry cakes left behind are ground into a fine powder. When mixed with sugar, this powder can be used to make that hot cocoa you drink on a cold day.