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RADAR

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  Radio Detection And Ranging Radar is a system that uses radio waves to determine the distance,speed and direction of objects relative to the point from where the radio waves are emitted.It is used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. Uses of Radar It is used in air and terrestrial traffic control, radar astronomy, air-defence systems, anti-missile systems, marine radars to locate landmarks and other ships, aircraft anti-collision systems, ocean surveillance systems, outer space surveillance.Radar is also used to spot space debris which have the potential to break satellites. Radio Waves Radio waves are electromagnetic waves with a frequency between about 10 to 4 and 10 to 11 or 10 to 12 Hz used for long distance communication. Frequency Frequency describes the number of waves that pass a fixed place in a given amount of time. Hertz is the unit of measurement for frequency How is Radar used in Air...

Book Review of Wonder by Raquel Jaramillo Palacio

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                                                                                                      Summary-August is a 10 year-old boy with mandibulofacial Dystosis and Treacher Collins Syndrome. Wonder is a book about his life from his  point of view and the point of view of his school friends, his sister, his sister's boyfriend and her friend. The book starts by introducing August Pullman and him starting school. At school, he is bullied, teased and called many different names like orc because of his face. This story talks about his first school year and how he gets through it from being a kid who was hated by everyone in the school except a couple of people to a kid famous for standing up and being mentally strong. My fa...

Book Review- Friend or Foe

Book-Friend or Foe Author-Michael Morpurgo Summary-Friend or Foe is a book which takes place during the World War. It talks about 2 boys who leave London without their parents as evacuees. They are taken care by a man called Mr. Reynolds and his wife. David and Tucky who are the 2 boys study in a school in the countryside. One day they see bombings from the house but no one else does. They later scout the moor to find 2 German pilots injured. They find them when one of the boys get stuck in the river and the pilots help him. The boys give them food, water and blankets for a week in return. In the end, one of the German pilots asks himself to be turned in as he was badly injured. Eventually Mr. Reynolds comes to know that the boys helped the pilot when he notices the missing things in his house. My View-The story was deeply touching as the author conveyed the message of how children felt when leaving their parents and getting evacuated. I was also impressed by how well the author convey...

Book Review of Tiger Boy by Mitali Perkins

 Information Title-Tiger Boy Author-Mitali Perkins Awards-Saba Winner 2016 Publisher-Duck Bill Cover Page-Tanvi Bhat Characters-Neel, Neel's father, Neel's mother, Neel's sister, Gupta and his men, Neel's friends and his schoolmaster, the rangers, the tiger cub and the tigers. Setting-The Sundarbans Summary Neel's schoolmaster believes he is capable of winning the Sundarbans scholarship to go and study in the big city of Kolkata. Neel on the other hand doesn't want to leave his beloved Sundarbans and go away from its beautiful nature. His parents also want him to win the scholarship. Just a couple months before this an evil and rich man called Gupta shifts to the Sundarbans. Gupta also secretly poaches and sells rare animals on the black market. One day, a tiger cub goes missing. Neel and his sister have to save the tiger cub and give it to the forest rangers before Gupta and his men find the cub and sell it in the market. Will they find the cub? Read this amazi...

KASHMIR:A SNOW PARADISE DAY 1-SRINAGAR

  KASHMIR:A SNOW PARADISE DAY 1-SRINAGAR Today was the day I was going to go to Kashmir.I was so thrilled and exuberant about going because this was the first time I was going to see snow.I couldn’t sleep the previous night but my mother put me to sleep and told me she would wake me up at 3 but she woke me up an hour early.I was muddled and wasn’t understanding.She said that our flight was supposed to be at 5 AM but it got cancelled and we had to book a replacement. I was hysterically  panicking and was in cold sweat.My parents were doing the best they could to get the replacements but it was hard work and we could not book it.I was hurrying up and down the hall and was staring constantly at the time.In the end luckily our replacement got booked for  6 o'clock.We were in a haste but our taxi got booked early and the driver drove very fast.We finished the process quickly and were running to the door as our final boarding call was being announced.We ran in just when they we...

Fun Facts 4

 1. The first vending machine was invented by Hero of Alexandria in   the first century . When a coin was dropped into a slot, its weight would pull a cork out of a spigot and the machine would dispense a trickle of   holy   water. 2. Bill Gates designed a traffic control system for Seattle when he was only 15. 3.Velcro was invented by a Swiss who was inspired by the way burrs attached to clothing while walking his dog.

Fun Facts 3

1 .The straw was invented in Egypt to taste beer 2. The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket. 3.The Microscope was invented when trying to build a better microscope 4.Did you know Leonardo Da Vinci invented the scissors? 5.Abraham Lincoln was a wrestler before he became the 16th President of the USA