What are the parts of an arrow? Have you seen lord of the ring or Hercules? Whenever two armies in these movies attack on each other, there will be a team of archers on both side who will initiate the attack first. Arrows are long shafted projectiles that are launched using elastic launching device called bow. In ancient times, bow and arrows were mainly used for hunting and combats. Different kinds of arrows were used for different purposes. Have you ever wondered, what are the different parts of arrow and their functions? Arrow is consists of mainly four parts.
Have you ever wondered why fire trucks are red? Whenever we think about fire trucks, the first thing that appears in our mind is a big truck with a red color. Something like this right Even kids also know the color of fire truck. But have you given a thought why fire trucks are red? There is no specific, universally accepted answer to this question but there are few theories about the red color of fire trucks. The first theory is related to the history of automobiles. In 1900, Ford was dominating the automobile manufacturing industry. Due to the
Is ammonia (NH3) an acid or a base? According to the Bronsted-Lowry theory and the Lewis theory, Ammonia (NH3) is a weak base A lot of time we get confused about whether ammonia (NH3) is an acid or base because according to the Arrhenius theory, acids are those substances that can produce hydrogen ions in aqueous solution while bases are those substances which can produce hydroxide ions in aqueous solution. We know that NH3 cannot produce hydroxide ions in gaseous state but it produces the same product as when the two substances were in solution. For example: NH3(aq) +
Why Aesop fables stories are so famous? Aesop fables stories and characters teach us values and morals During my childhood days, I loved to visit my grandparent’s house in holiday breaks because my grandparents used to tell me tales and stories by the fire on a cold night or on the terrace with a sky full of stars. Most of the stories were fable stories that had an animal character such as dog, rabbit, tortoise, donkey, lion, monkey, and many more. One of the most famous stories I can recall is ‘The Tortoise and the Hare’ with the lesson
Are acids more dangerous than bases? “Strong bases or alkaline are more dangerous than strong acids“ Every day we use a large number of chemical substances such as lemon juice, black coffee, oven cleaners, dyes, drain cleaners, and many more. Some of these substances are edible while some are very harmful. Now the question that arises in our mind is that what makes these acids or bases harmful. In order to answer the above question, we first need to understand what are acids and bases. Acids are chemical substances that taste sour and change the blue litmus paper color
Most of us consider mathematics as boring and tough subject but for some students, it is very easy that they can score 100/100. Personally, also I found mathematics as a boring and tough subject and wanted to master mathematics easily. So I tried to found various learning tricks and methods to improve my math skills and later I found that mathematics is an easy subject as compared to literature and other subjects. The best way to master this subject is to learn different methods and practice questions as many as possible. Arithmetic is one of the most important branch