Friday, July 21, 2023
CRUM'S CRISP FRIES
Thursday, July 20, 2023
JAPANESE ART OF FLOWER ARRANGEMENT
Ikebana
Ikebana is the Japanese art of flower arrangement. The term Ikebana comes from two Japanese words Ikru, meaning ‘to live’ and hana, meaning ‘flowers’.Wednesday, July 19, 2023
AN IMPORTANT PROCESS IN FLOWERING PLANTS
Pollination
Did you know that some of the delicious fruits you enjoy are the result of the hard work put in by a tiny insect?
Pollen is a fine powdery yellow substance produced by flowers. The pollen from one flower has to be transported to another flower of the same species for fertilisation tooccur. A few plants disperse their pollen, aided by the wind. Aquatic plants float their pollen on water, but most plants depend on animal couriers. Mangoes, peaches, apples and a host of other fruits and vegetables are pollinated by bees and other insects such as wasps, moths, butterflies, flies, birds and even mammals like bats. In fact, some plants and their pollinators are so mutually dependent that one cannot live without the other!
Trick and Treat: Flowering plants have a number of lures to attract pollinators. Dazzling colours, heady fragrances, loads of sugary nectar and convenient perches are a few of them. Plants have also adapted their arsenals to suit the creatures visiting them. Blooms pollinated by nocturnal moths are white, large, showy and sweetly scented. They also have lots of nectar. Flowers pollinated by bats are flamboyant, and white or light-coloured since their visitors are nocturnal like the moths. Flowers that attract bees are usually yellow, blue and purple.
The Real Deal: There are 20,000 different species of bees! Of course, not all of them pollinate crops valuable to us. However, nearly three fourths of crop species that provide us food are bee-pollinated. A few among these are almond, cocoa, coffee, strawberries, avocado, mango, kiwi fruit, cashew, onions and tomatoes.
Pollination-dependent crops are five times as valuable as those that do not need pollination—their produce is worth between US$235 and US$577 billion a year. The volume of agricultural production dependent on pollinators has increased by 300 per cent in the last 50 years.
Wild pollinators: Wild pollinators are twice as effective as honeybees which have been raised for this purpose (known as ‘managed’ honeybees). The fruits and seeds are superior in every way, including nutrition, and the yield is much greater. Commercial apiaries (an apiary raises bees on a large scale) not only produce honey and beeswax, but also rent out their hives to farmers for pollination. For instance, California’s almond farms require almost a million beehives for pollination! The Latest Buzz: There has been a drastic decline in the population of wild bees and other wild pollinators. Not only have their habitats been degraded or destroyed, climate change has also had a devastating effect. Rising temperatures and extreme weather events have led plants to bloom at odd times when pollinators are absent or few, depriving the plants of fertilisation and the pollinators of food when they need it! Intensive agriculture (growing just one crop at a time) and the widespread use of pesticides have also led to a decrease in wild pollinators.
World Bee Day: Anton Janša is regarded as one of the pioneers of modern apiculture.
Janša was born in 1734 in Slovenia. His family owned more than a hundred beehives, so although he was a talented painter, he took up professional beekeeping. He designed a new beehive, perfected the techniques of producing honey and wrote books on apiculture. The United Nations decided to observe Janša’s birthday on 20 May as World Bee Day in 2017.
FACT FILE:
◆ The paw-paw, a fruit native to the US, depends on flies for pollination. Farmers hang rotten meat from the tree to draw in even more of them.
◆ Bats pollinate more than 300 species of fruit-bearing plants, including mangoes, bananas and guavas.
◆ Colony Collapse Disorder is a phenomenon affecting honeybee colonies in commercial apiaries. The colony suddenly dies with no healthy adult bees remaining. The bees leave the hive to collect nectar and pollen but never return.
◆ Plants can be pollinated by hand when there is a lack of natural pollinators. The pollen is transferred manually from the stamen of one flower to the pistil of another, using a cotton swab or small brush.
Tuesday, July 18, 2023
GHOST TOWN
Kuldhara
Kuldhara is a charming but deserted village, very close to Jaisalmer in Rajasthan. People call it a ghost town. Until the 19th century, Kuldhara was a prosperous village. It was established in the 13th century by the Paliwal Brahmins, who had migrated from Pali.Monday, July 17, 2023
FIVE IMPORTANT MAXIMS
Parable of the pencil
The pencil maker took the pencil aside, just before putting it into the box.Sunday, July 16, 2023
DO YOU KNOW
What is dry ice and what are its uses?
Dry ice is the common name for the solidified (frozen) form of Carbon dioxide. It is so called because it does not melt into a liquid, but changes directly from solid to gaseous form when heated, in a process known as sublimation.
Because of its extremely cold temperature -780C, dry ice is very useful for refrigeration. Its main use is as a cooling agent. Being simple to use and easy to handle using insulated gloves, as well as non-toxic and completely dry, it is widely used as a refrigerant to ship frozen or medical products or to cool materials during production. Food-grade dry ice can also be put into beverages to cool them (but must not be eaten or swallowed).
Another important use of dry ice is for blast cleaning, an effective and environment-friendly way to clean industrial equipment. This method involves shooting pellets of dry ice from a jet nozzle on to the equipment or machinery to be cleaned. This effectively removes residues of materials such as ink, glue, oil, paint etc.
An interesting use of dry ice is in fog machines. When it is kept in water, sublimation ensues, creating dense clouds of smoke-like fog. This is very useful for dramatic effects in stage plays, dances etc. Hence fog machines containing dry ice are used in night clubs, theatres, film shooting sets and amusement parks.
Dry ice is also an excellent material to enliven science lessons and is commonly used in school projects to make a volcano, a cloud chamber etc.
Saturday, July 15, 2023
HISTORICAL EVENT OF THE MONTH
Fall of Bastille
On July 14, 1789, a group of revolutionaries stormed and captured the Bastille, a medieval fortress in Paris that was used as a French state prison. The Bastille was a symbol of the tyranny of the reigning Bourbon monarchy and held an important place in the ideology of the French revolution, which in turn changed the face of modern politics across Europe and the world.
In 1880, the French government passed a law declaring July 14 a public holiday. Since then, the day has been commemorated as La Fete Nationale, or Bastille Day in English, across France and French-speaking areas.
An African folktale
THE MAN WHO NEVER LIED Once upon a time, there lived a wise man named Mamad, known far and wide for never telling a lie. People from even di...
-
Safin Hasan 22-year-old Safin Hasan, from Gujarat, became India’s youngest IPS Officer and joined Jamnagar police as Assistant Superintende...
-
If AI is so clever, why can't it solve a CAPTCHA? CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart) ...
-
Nag Panchami In Indian mythology, the world is supported on the hood of a giant snake called Shesha. And the myths and legends come to the...