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Near-Earth-Objects: Near-Earth-Objects (NEOs) are small objects in the solar system. They have struck Earth in the past and will definitely hit again, but are we in danger of Near-Earth-Objects? The Earth has been hit by asteroids, comets and meteorites in the past. Scientists believe that when a large asteroid collided with Central America 65 million years ago, the dinosaurs became extinct. The collision threw up water and rock which hid the Sun and covered the Earth in darkness for months. Dinosaurs could not survive in the cooler climate. Of the Near-Earth-Objects, Most meteors are tiny and burn up in Earth's atmosphere. Even the ones that do get through and land as meteorites are mostly very small. The Earth's atmosphere protects us from all objects up to about 40 metres across. Asteroids pose a much bigger threat to Earth as they tend to be much larger objects. If an asteroid with a diameter of more than two kilometres hit the Earth, it would cause a catastrophic planetary

 Our Solar System: The solar system is the Sun and all the different objects that orbit around it. These objects include the eight planets, their moons and asteroids and comets. Circling The Sun : The Sun is a star - which means it is a huge, spinning ball of hot gas. It is the only star in our solar system and it provides light and heat to the planets. The Sun's gravity is the force that holds the solar system in place and keeps the planets traveling around the Sun. The Planets : Mercury, Venus, Earth and Mars are the four planets closest to the Sun. They are rocky planets with a metal core. The next four planets, Jupiter, Saturn, Uranus and Neptune are gas planets. They have rocky cores covered by liquid or ice with layers of gas clouds on the outside. Moons are large rocky satellites that orbit a planet. Each planet has at least one moon, except for Mercury and Venus which don't have any. Asteroids are pieces of rock that orbit the Sun. Most asteroids are grouped together in

  இன்றைய 10 சொற்கள்! 1. Unavoidable (அன்அவாய்டபல்) - தவிர்க்க முடியாத. போர் தவிர்க்க முடியாததாகும். War was unavoidable. 2. Forum (ஃபோரம்) - பொது மன்றம். வேட்பாளர்கள் பொது மன்றத்தில் கூடினார்கள். The candidates are assembled in forum. 3. Miner (மைனர்) - சுரங்கத் தொழிலாளர். சுரங்கத் தொழிலாளர்கள் ஊதிய உயர்வுக்காக வேலைநிறுத்தத்தில் The miners went on strike for a wage increase. 4. Invent (இன்வென்ட்) - புதிதாகக் கண்டுபிடி. தாமஸ் அல்வா எடிசனால் ஒளி விளக்கு புதிதாக கண்டுபிடிக்கப்பட்டது. Thomas Alva Edison invented the light bulb. 5. Crowd (கிரவ்டு) - கூட்டம். பூங்காவில் ஒரு பெரிய கூட்டம் இருந்தது. There was a large crowd in the park. 6. Share (ஷேர்) - பகிர். அவன் பழங்களை அவளுடன் பகிர்ந்து கொண்டான். He shared the fruits with her. 7. Saint (செய்ன்ட்) - துறவி. அவர் ஒரு துறவி போல நடித்தார். He acted like a saint. 8. Pardon (பர்டன்) - மன்னிப்பு. தாமதமாக வந்ததற்கு என்னை மன்னியுங்கள். Pardon me for coming late. 9. Invade (இன்வெடு) - படையெடுப்பு. ஹிட்லர் 1939 ஆம் ஆண்டு போலந்து மீது படையெடுத்தார். Hi

  Did you know? 1.  There are around 280 species of squirrels are found in the world. 2. A squirrels front teeth never stop growing. 3. A newborn squirrel is about an inch long. 4. Squirrels are mammals. 5. A squirrels can run up to 20 miles per hour . 6. Squirrels can jump upto 20 feet. 7. Flying Squirrels can leap up to 150 feet. 8. Flying Squirrels do not actually fly. They extend their arms and legs and leap and glide from tree to tree. 9. Flying Squirrels are nocturnal. 10. The average life span for a squirrel is 3-5 years. உங்களுக்குத் தெரியுமா? 1. உலகில் ஏறத்தாழ 280 அணில் இனங்கள் காணப்படுகின்றன. 2. அணில்களின் முன் பற்கள் வளர்வதை நிறுத்தாது. 3. புதிதாக பிறந்த அணில் ஒரு அங்குல நீளத்தில் இருக்கும். 4. அணில்கள் பாலூட்டிகள் ஆகும். 5. அணிலால் மணிக்கு 20 மைல்கள் வரை ஓட முடியும். 6. அணிலால் 20 அடி வரை குதிக்க முடியும். 7. பறக்கும் அணிலால் 150 அடி வரை தாண்ட முடியும். 8. பறக்கும் அணிலால் உண்மையில் பறக்க முடியாது. அது தன் கைகள் மற்றும் கால்களை நீட்டி மரத்துக்கு மரம் தாவி சரிக்கிக் குதிக்கு

<script data-ad-client="ca-pub-4587251815717293" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>   இன்றைய 10 சொற்கள்! 1. Accelerometer (அக்சலரோமீட்டர்) - முடுக்கமானி. முடுக்கமானி சரியான முடுக்கத்தை அளவிடும் ஒரு சாதனம் ஆகும். An accelerometer is a device that measures proper acceleration. 2. Amplifier (ஆம்லிபையர்) - ஒலிப் பெருக்கி. ஒலிப் பெருக்கிகள் பரவலாக அனைத்து மின்னணு உபகரணங்களிலும் பயன்படுத்தப்படுகின்றன. Amplifiers are widely used in almost all electronic equipment. 3. Battery (பேட்டரி) - மின்கலம். மின்கலங்கள் கணினியை இயக்குகிறது. Batteries runs the computer. 4. Automatic (ஆட்டோமேட்டிக்) - தானியங்கி. அவளிடம் ஒரு தானியங்கி சலவை இயந்திரம் உள்ளது. She has an automatic washing machine. 5. Atom (ஆட்டம்) - அணு. அணுக்கள் மிகவும் சிறியவை ஆகும். Atoms are very small. 6. Energy (எனர்ஜி) - ஆற்றல். சூரிய ஆற்றல் ஒரு புதிய ஆற்றல் மூலமாகும். Solar energy is a new source of energy. 7. Transformer (டிரான்ஸ்பார்மர்) - மின்மாற்றி. ம

<script data-ad-client="ca-pub-4587251815717293" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> Did you know? 1.The average human body carries ten times more bacterial cells than human cells. 2. 20% of Earths oxygen is produced by the Amazon rainforest. 3. Every year over one million earthquakes shake the Earth. 4. The first synthetic human chromosome was made by US scientists in 1997. 5. 65% of those with autism are left handed. 6. Girls have more taste buds than boys. 7. The average thickness of ice in Antarctica is about 1 mile. 8. Yawning is the best way for cooling brain. 9.  The old name of Palani was Thiru Avinankudi. 10. The Indian state, which consist of 85 percent of agricultural land is Punjab. உங்களுக்குத் தெரியுமா? 1. ஒரு சராசரி மனித உடல்இ மனித செல்களைவிட பத்து மடங்கு பாக்டீரியா செல்களை கொண்டிருக்கிறது.  2. பூமியின் 20 சதவீதம் ஆக்ஸிஜன் அமேசான் மழைக்காடுகளில் உற்பத்தி செய்யப்படுகிறது. 3. ஒவ்வொரு ஆண்டும் ஒ

The Little Girl And Mushrooms It was a fine summer morning, perfect to be outdoors. Two sisters had been out mushroom picking, and were on their home with heavy baskets full of mushrooms. They sang songs on the way, and played with each other. Soon they reached a point where they had to cross a railway track. They did not think twice about crossing it since there was no train coming, and they could not hear any whistle. They slowly climbed the embankment to cross the track, taking care not to drop the baskets. They were very near the track and the little sister was about the cross it, when they heard the distinct horn of a train. The older sister got frightened and ran back. She thought that the young one was following her. She turned back and was shocked to see her little sister still crossing the track. "Come back here, run back fast," she screamed. It seemed that the little girl could not hear her sister. She was still concentrating on stepping over the track with her litt

Lazy Poor Man and Milk Pot Its story of a poor man who was extremely lazy. He always dream of being rich and still didn’t want to work for it. He used to ask for alms even just to feed himself. Luckily one morning he got a pot of milk as alms. He was very happy. He went home with that pot and boiled it, drank some of it and added curd to remaining of it to turn it into curd. He laid down and soon feel asleep. While sleeping he dream about getting rich one day and his thoughts were turned to pot of milk he got that day. He dreamed, “By morning the pot of milk will be turned to curd. once the curd is set he can churn it to get butter out of it. Then make ghee out of that butter. Once he get the Ghee, he would sell it in the market and with that money he will buy a hen and hatch its eggs. There will be many chickens with which he will soon have a poultry farm of his own. He kept on imagining that, “After selling his poultry and buying some cows he can open a dairy far. All the people will

Funny Husband Wife Conversations A husband feared that his wife was not hearing well as she used to hear. He got into thinking that she might need a hearing aid but he wasn’t sure how to approach her. For suggestion he called family Doctor and told him about the situation. Doctor told him to test it by a simple idea and getter a better idea about her hearing loss. Doctor said, “Here’s what you do. stand about 40 feet away from her, and in a normal conversational speaking tone see if she hears you. If not, go to 30 feet, then 20 feet, and so on until you get a response.” Next day in evening he saw that wife was cooking dinner in the kitchen, So he took the chance to check the doctor’s idea. He got about 40 feet away from the kitchen and asked his wife, “Dear, what for dinner?” and waited for response. He got “No response” So he moved bit closer about 30 feet away from kitchen and repeated the same question, “Dear what’s for dinner”. Still he got “No Response” Next he moved in to dining

Always Stay Alert Once upon a time there was a lion that grew so old that he was unable to kill any prey for his food. So, he said to himself, I must do something to stay my stomach else I will die of starvation. He kept thinking and thinking and at last an idea clicked him. He decided to lie down in the cave pretending to be ill and then who-so-ever will come to inquire about his health, will become his prey. The old lion put his wicked plan into practice and it started working. Many of his well-wishers got killed. But evil is short lived. One day, a fox came to visit the ailing lion. As foxes are clever by nature, the fox stood at the mouth of the cave and looked about. His sixth sense worked and he came to know the reality. So, he called out to the lion from outside and said, How are you, sir? The lion replied, I am not feeling well at all. But why don’t you come inside? Then the fox replied, I would love to come in, sir! But on seeing, all foot prints going to your cave and none co