10 cool human facts

Interesting and cool human facts for everyone....

1.Your thumb is the length of your nose. 

2.Scientists say the higher your IQ,the more you dream.


3.The average human dream lasts 2-3 seconds.

4.The enamel in your teeth is the hardest substance in your body.















5.It takes seven seconds for the food to get from your mouth to the stomach. 



6.A pair of human feet contains 250,000 sweat glands.



7.Your big toes have two bones each, while the rest have three.

8.You use 200 muscles to take one step.


9. It is possible for people to fall asleep with their eyes open and be entirely unaware of it.


10. Clinomania is the excessive desire to stay in bed all day.

41 Weird Facts

41 Weird Interesting True Facts to Read

1.A head of broccoli is made up of hundreds of small flower buds.

2.A highway runs through the middle of an office building in Osaka, Japan.  

3.Someone is born in the United States about every eight seconds.

4.Every day is about 55 billionths of a second longer than the day before it.

5.Four-thousand-year-old noodles were discovered in ancient ruins in China.

6.Kids in the United States use about 730 crayons by their tenth birthdays.

7.Cleopatra became the queen of Egypt when she was only a teenager.

8.It's impossible to breathe and swallow at the same time.

9.Being chased or falling off a high place are the two most common dreams.

10.Rome's Colosseum could hold 50,000 spectators.

11.Belly button lint is made of clothing fibers, hair, and dead skin cells.

12.A hotel in Las Vegas, Nevada, has a two-story-tall chocolate fountain.

13.A cloud can weigh more than a million pounds.

14.If you eat too many carrots, your skin can turn orange.

15.No words in the English dictionary rhyme with "orange".

16.An average major league baseball is used for only 6 pitches.

17.A zepto second is one-billionth of a trillionth of a second.

18. Nose prints can be used to identify dogs, just like fingerprints of humans.

19.Most calculators are more powerful than the world's first computer.

20.Writers once used bread crumbs instead of erasers to correct pencil mistakes.

21.Astronauts can't whistle on the moon.

22.Astronauts' footprints stay on the Moon forever; there's no wind to blow them away.

23.The wingspan of a 747 is longer than the Wright brothers' first flight.

24.There are about 1,000 chocolate chips in a pound (.45 kilograms).

25.Days are longer than years on the planet Mercury.

26.A second full moon in a month is sometimes called a blue moon.

27.It would take about three years of nonstop pedaling to bike to the moon.

28.Each year the moon moves about one and a half inches farther from the Earth.

29.Earth travels about 1.6 million miles every day.

30.You take about 25,000 breaths every day.

31.If you heat a diamond to 1,405 degrees Fahrenheit (763 degrees Celsius), it will turn into vapor.

32.There is no gravity at the center of the Earth.

33.During the lunar day the surface of the moon can reach well over 200 degrees Fahrenheit (93.3 degrees Celsius).

34.Applesauce was the first food eaten in space by an American astronaut.

35.Stretched out, your digestive system is nearly 30 feet (9 meters) long.

36.Bamboo can grow about an inch in one hour.

37.All of the blood in your body travels through your heart once a minute.  

38.Astronauts have grown potatoes on the space shuttle.  

39.Your skeleton has about 300 bones when you are born, but only 206 when you grow up.

40.About one-quarter of the body's bones are in the feet. That's 52 out of more than 200!

41.It's impossible to sink in the Dead Sea.

36 Interesting facts about Tiger

1. *Tiger is the most ferocious,popular and charismatic megafauna in the world.The magnificent tiger is one of the most powerful predators in the world. T9UG9UXHDYUW
2. *Tigers are the largest members of the cat family.
3. *The scientific name for the tiger is Panthera tigris.
4. *There are five subspecies of tiger: Bengal, South China, Indochinese, Sumatran, and Siberian.Since the 1950s three subspecies of  tiger—Caspian, Bali, and Javan—are extinct.The five remaining species are also endangered due to poaching.They have been pushed to the edge of existence through hunting and habitat loss.
5. *It weighs up to 363 kilograms, stretches 6 feet long, and has a 3-foot- (1-meter-) long tail.
6. *A tiger retracts its claws as it walks, leaving no claw marks in its tracks.
7. *A tiger's mighty roar can be heard as far as two miles (three kilometers) away.
8. *Tigers are good swimmers and can swim upto 6 kilometres.
9. *Tigers are carnivorous and they hunts for prey primarily by sight and sound.
10. *Tigers can cover up to 10 m (33 ft.) in a single leap.
11. *Tigers stripes are unique as human fingerprints,no two tigers will have the same pattern.They are easily recognized by its coat of reddish-orange with dark stripes along the flanks and shoulders.Tiger stripes allow them to camouflage and become nearly invisible while hunting and stalking their prey.The stripes on the tiger will be found even after their fur is shaved.
12. *The underside of the tiger's limbs,belly, chest, throat, and muzzle are in white color. White is also found above the eyes and extends to the cheeks. A white spot is present on the back of each ear. The dark lines about the eyes tend to be symmetrical, but the marks on each side of the face are often asymmetrical. The tiger's tail is reddish-orange and ringed with several dark bands.
13. *A healthy tiger can run at speeds of around 35 miles per hour.
14. *Tigers have short, thick necks, broad shoulders, and massive forelimbs, ideal for grappling with prey while holding on with long retractible claws and broad forepaws.
15. * Tigers are known for their stealth and ambushing attacks.A tiger's hindlimbs are longer than the forelimbs, an adaptation for jumping.
16. *The forefeet of tiger have five claws which are used for attacking prey or other tigers. The first claw, called a dew claw, is vestigial (reduced in size) and does not reach the ground. Tigers keep the foreclaws sharp by scratching them on "scratching posts" such as tree trunks.
17. *The hindfeet have four claws. The hindclaws are occasionally used to help bring down large prey, and in defense against other tigers.When not in use, each claw is retracted (by ligaments) into a sheath of skin, which protects it from excessive wear. To extend the claw from the sheath, muscular action is needed to straighten the last toe bone and pull the claw forward
18. *A tiger’s tongue is covered with hard papillae, to scrape flesh off the bones of prey.
19. *Tigers usually live 8 to 10 years in the wild and in captivity tigers have been known to live up to 26 years.
20. *Tigers are mammals and its gestation period is about three and half months.The female tiger will take care of their cubs until they reach 2-3yrs old.
21. *Tigers are carnivorous and they eat both large and small animals like deer,cattle,frog and fish.If the prey animal is large, the tiger bites its throat to kill it; smaller prey is usually killed when the tiger breaks its neck.Tigers are known to eat up to 60 pounds (27 kilograms) of meat in one night.
22. *Tigers are very solitary animals.If they are found in groups they are called as streak of tigers.
23. *Tigers have no natural predators, except for humans. Adult tigers are potential predators of younger cubs.
24. *Tigers are 2 million years old.
25. *The word tiger came from the greek work "tigris".It means "arrow" in the persian language.Comparing the speed of the animal to an arrow it may got its name or it may got its name from the "Tigris" river located in Syria,Iraq.
26. *Male tigers are larger than female tigers in comparison. Also, they have larger paws in proportion to their body size than females.
27. *Tigers short-term memory alone lasts about thirty times longer than humans, and their memories are made with stronger brain synapses, meaning that they can remember more and do not forget things as easily as we do.
28. * Tigers seldom climb trees, but are capable of doing so with the help of their front and back claws.
29. *Tigers have a brain that weighs over 300g. It is the largest brain of all carnivores, except the polar bear.
30. *The markings on a tiger’s forehead closely resemble the Chinese character for king, giving tigers a cultural status as a regal animal.
31. *Tiger is the national animal of (Royal Bengal Tiger)India,Bangladesh,South Korea,Malaysia,Vietnam and Myanmar.
32.  *Most tigers have yellow eyes with round pupils.They have good vision both during the day and at night. During the day, a tiger's sight is about the same as a human.Their night vision are six times better than humans.Generally,Tigers hunt at night .
33. *The Hukaung Valley Tiger Reserve in Myanmar is the largest Tiger Reserve in the World.
34. *Tigers in case of wounds will use their own saliva as first aid,which acts as an antiseptic and helps to clean up wounds inflicted by prey.
35.  *A chomp of a tiger’s jaws can generate pressures of up to 10,000 pounds per square inch, which is enough to crunch through the vertebrae of any creature on the earth.
36. *Dental formula for tigers: I=3/3, C=1/1, P=3/2, M=1/1. Incisor teeth help to grab hold of prey as well as pull meat off bones.Canine teeth are used for biting and killing.Premolars and molars are used for tearing and chewing.A tiger’s canine tooth can grow up to three inches, which is about the length of your middle finger.

Tiger

10 Interesting facts about the Sun

Image of the Sun. Image credit: NASA We rejoice when we see that the day will be sunny and saddened when the sky is overcast.  According to studies, cloudy weather for three days, reduces the activity of the brain, and within a week - the general activity of the nervous system. The number of cases of depression cloudy weather increases by four times. 1.We all think that the sun is yellow or orange, but in fact it is white. Yellows Sun gives a phenomenon called "atmospheric scattering." 2.The spectral class of the Sun - G2V, it is closer to the cold end of the main sequence, and belongs to a class of yellow dwarf. Most of the stars in the Milky Way - "red dwarfs" (relatively small and cool stars), and approximately 15% of the stars in a galaxy brighter than our sun. 3.The sun revolves around the center of our galaxy, the Milky Way, making a complete revolution every 225 - 250 million years. 4.Light passes the average distance from Earth to the Sun (150 million kilometers) for 8 minutes. For comparison, the next nearest star, Proxima Centauri is 4 light years away ... 5.Sun has a diameter of about 1.392 million kilometers (about 109 times larger than the diameter of Earth). The mass of the sun is 98% of the mass of our solar system. 6.Between 1640 and 1700 in the Sun did not have spots. This period, called the Maunder minimum, coincided with a "small ice age" - the common cold snap on the Earth, when the river that never freezes, covered with ice, and snow lay all year round at all latitudes. Now the sun is at its peak. 7.The minimum number of eclipses in a year - twice.At any particular point on the surface total solar eclipse occurs on average 1 every 200-300 years. 8.In Malta, the average length of daylight in summer - 10 hours. In Samarkand - 15 hours in Stockholm - 18 hours, and in the Swedish city of Kiruna, located above the Arctic Circle - 24 hours. True, the winter sun in Kiruna, does not arise at all. By the way, dividing the day into 24 hours, we have borrowed from the stories of the ancient Egyptians the god of the sun Ra, who spent twelve o'clock at night in a dark underworld, and the remaining 12 hours - in heaven. 9. 300 sunny days per year is in Morocco, Nice, Brisbane (Australia), in Monte Carlo and Ussuriisk . 10.Every second the sun burns 700 billion tonnes of hydrogen. Despite this tremendous loss rate, solar energy will last another 5 billion years of this life (about the same age from birth the Sun). End his life the sun white dwarf, after having increased in size and alienate all the planets. On these planets, all the water evaporates and disappears atmosphere.

What is Temperature?

Temperature is measured using thermometer.It is the measure of how hot or cold things are. 

Temperature is measured in degrees on the Celsius (°C),Fahrenheit and Kelvin scales.

* Ice melts at exactly 0°C.

* A hot bath is about 40°C

* Water boils at exactly 100°C

Temperature Conversion

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Interesting Facts 

You can tell the temperature by listening to the chirping of a cricket.

Wonder How ?

Here is the answer.

The frequency of chirping varies according to temperature. To get a rough estimate of the temperature in degrees fahrenheit, count the number of chirps in 15 seconds and then add 37. The number you get will be an approximation of the outside temperature.

Temperature

Changing states,Temperature - Educational Games

Heat and cool water to help Deadly 60's Steve survive in the Arctic.



Source: BBC,RESEARCH