Humour is something that is funny, comical, or amusing that makes us laugh. Humour can be in form of a joke, a movie scene, a drama sequence or a story. Different people laugh at different things, which means what one might consider funny, may not make the other laugh at all! All kinds of people […]
Louis Braille was a French teacher and inventor who was completely blind. He is best known for his system of raised dots that enables blind people to read and write. This system is called Braille system and is still used today. Louis Braille published this system in 1829 at the age of 20. Braille was
Radio waves are electromagnetic radiations, mostly used for communication. They exist all around us in the form of vibrations received by cell phones, radio and television. These waves are converted into sound waves, which can be heard. Just like a pebble that creates a rippling effect when dropped in water, waves also radiate in all
Embroidery is a type of artwork, generally done on a piece of cloth with the help of threads and a needle. The pattern or design of a thread is known as embroidery. It is an ancient craft, which is very popular. Embroidery was originally a man’s profession. It improves the aesthetics of the cloth. The
A balloon is a cylindrical or a spherical body made up of rubber, silk, rubberised fabric or paper. It inflates when hot air, hydrogen or helium is filled in it. These three gases are lighter than normal air. Hence, when they are filled into the balloon, the balloon rises in the air. Another factor that
In the period of mechanical timepieces, there was no country which was leading the clock and watch making industry. However, the migration of skilled workers from one nation to another resulted in clock and watch-making becoming an international trade. Some of the leading clock-making countries include England which is famous for the production of ship
Concrete is the most popular and useful artificial building material that man has ever developed. The main properties of concrete are that it is economical, durable, strong, easy to work with and long-lasting. It can withstand fire, water, weather harshness, etc. Concrete is made out of Portland cement, water, sand, and gravel. These materials are
The word ‘gypsy’ comes from the Egyptian language, as gypsies are thought to have originated from Egypt. But the original gypsies are the tribal people of north-west India; they migrated to a number of places like Persia, Turkey, Syria, Egypt and North Africa. Gypsies spoke a language related to Sanskrit as their land of origin
Our heart is a pump. As it performs its pumping action, it sends blood to the entire body, thus enabling us to live. A heart-beat* is the contracting and relaxing of the heart. A human heart-beats around 60-100 times per minute approximately 1,00,000 times per day. As the heart contracts, blood is pumped out and
• Common name : Cleavers • Scientific name : Galiumaparine • Family : Rubiaceae • Native land : Europe and Western Asia (i.e. Eurasia), Australia Cleavers is an annual, sprawling herb. It has small hooks along the stems, at the tip and along the edges of the leaves and on the fruit. These hooks will
Ocean waters circulate, horizontally and vertically. These circular movements are known as currents. Ocean currents are driven by wind, water density differences, and tides. The flow of wind above the surface of the ocean is the main cause of these currents. The two main types of wind flow are the Westerlies–west to east and the
• Common name : Cilantro • Scientific name : CoriandrumSativum • Family : Apiaceae • Native land : Southern Europe and the Western Mediterranean It is a warm weather annual herb. It is commonly grown in herb gardens for its lacy, strong-scented foliage (cilantro) and its aromatic seeds (coriander). It has slender stems with leaves
People in ancient times observed that there were certain stars in the sky, which appeared in particular patterns or groups. They called them constellations (group of stars–Latin). They were named after gods, heroes, animals, etc. Among these, mainly twelve constellations were noticed. People observed that the sun and the moon also rose and set in
• Common name : Chives • Scientific name : Allium schoenoprasum • Family : Amaryllidaceae (onion) • Native land : Europe, Asia and North America Allium schoenoprasum is a bulbous perennial, forming a clump of erect, narrowly cylindrical, onion-scented leaves, with rounded umbels of light purple bell-shaped flowers. They grow from 6 to 10 inches
• Common name : Hawaiian hibiscus or rose of China • Scientific name : Hibiscus rosa-sinensis • Family : Malvaceae • Native land : Asia and tropical Africa It is an annual herbaceous shrub. The plant is about 3.5 metres tall and has a deep penetrating tap root. The dark green, toothed leaves are arranged