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Hiển thị các bài đăng có nhãn facts. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn facts. Hiển thị tất cả bài đăng

Thứ Hai, 21 tháng 11, 2016

Amazing facts about dreams that you should know

Below are some amazing facts about dreams that you should know, let's have a closer look at 

1. Dream tenure


An average human being spends 6 whole years of his/her life dreaming, from coolfunfactsoflife.

2. Memory limit


There's a time limit to how much you can remember about your dream. Only within five minutes since you are up from your sleep, an average person's dream is forgotten and in just 10 minutes, 90 percent of the dream is gone with the wind. However, if awakened at the REM (rapid eye movement sleep) stage, that person is more likely to remember the dream.

3. Eyes don't matter


Blind people can dream. People who became blind after birth can see images in their dreams and those who were born blind dream as vividly, however, instead of seeing images, they use their other senses such as smell, sound, touch etc. to dream.

4. Dream Master


The good part is that you can often control your dreams. You can manipulate, twist and turn the beginning and the ending of your dreams like it's a movie being shot in front of you. It is called the "Lucid dreaming" (one is aware that he/she is dreaming) phase.

5. Entry level


Toddlers don't star in their own dreams till they are about 3-4 years old.

6. Dreams are for everyone


There is not one person who doesn't dream, except those who have psychological disorders. If you think you don't dream, it's just that you're forgetting your dreams. That might be one of the most awesome interesting facts ever.

7. Familiarity


You might not remember the person in your dream. However, a person only dreams of people he/she has encountered in life but it's impossible to keep track of thousands of faces that you come across each day.

8. Colour no bar


Not everyone dreams in colour and not everyone dreams in black and white. If a person grew up watching black and white television, he/she is more likely to dream in black and white. In a survey, it was revealed that 12% of sighted people ONLY dreamt in black and white and rest of the sample dreamt exclusively in colour. The number has gone down. Today, only 4.4% under-25-year olds dream in black and white, the change is being based (by scientists) upon the transformation from black and white television to colour media.

9. Symbol


You sometimes have the strangest of dreams - some scary, some worrisome and the rest absolutely angelic. Remember, these are all symbols for something or the other. There's nothing strange about these dreams because they are only talking in a symbolic language like poems. Check out my list of fun, weird and just plain amazing fact of life I have found.

10. Universal


It's not only you who dreams, animals dream too just like this leopard lost in his dreamworld after eating lunch. The best example is a dog, you will often see them twitching their paws as if they are running in their dreams.

Thứ Tư, 5 tháng 10, 2016

Ocean color and the explaination

Do you know about ocean color and the explaination for this amazing science facts? See the best answer as belows:



"The ocean looks blue because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light). So when white light from the sun enters the ocean, it is mostly the blue that gets returned. Same reason the sky is blue."
In other words, the color of the ocean and the color of the sky are related but occur independently of each other: in both cases, the preferential absorption of long-wavelength (reddish) light gives rise to the blue. Note that this effect only works if the water is very pure; if the water is full of mud, algae or other impurities, the light scattered off these impurities will overwhelm the water's natural blueness.
Gross then asks, "So why are sunsets orange?" Several people to wrote in to correct or clarify that comment.
Perhaps the most helpful response came from Michael Kruger of the department of physics at the University of Missouri. He sent the following reaction:
"The answer to why the sky is blue isn't quite correct although there are many funny pics to prove it. The sky is blue not because the atmosphere absorbs the other colors, but because the atmosphere tends to scatter shorter wavelength (blue) light to a greater extent than longer wavelength (red) light. Blue light from the sun is scattered every which way, much more so than the other colors, so when you look up at the daytime sky you see blue no matter where you look. This scattering is called 'Rayleigh scattering'; the amount of scattering goes as the frequency of the light to the 4th power. By the way, this effect is most prevalent when the particles that do the scattering are smaller than the wavelength of light, as is the case for the nitrogen and oxygen molecules in the atmosphere.
"Now we are in a position to figure out why sunsets are reddish! When the sun is setting, the light that reaches you has had to go through lots more atmosphere than when the sun is overhead, hence the only color light that is not scattered away is the long wavelength light, the red.
"We can also answer why clouds, milk, powdered sugar and salt are white. The particles in these materials that are responsible for scattering the light are larger than the wavelength of light. Consequently, all colors of light are scattered by more or less the same amount. Much of the scattering in milk is due to the lipids (fat). If you take out the fat, the milk will not scatter as much light; that is probably why skim milk looks the way it does.


Check out more facts at factoflife to get more.

Thứ Hai, 29 tháng 8, 2016

Basic tigers facts and information

Learn all basic tigers facts and information by this writing:

Diet

Tigers mainly eat ambar deer, wild pigs, water buffalo and antelope. Tigers are also known to hunt sloth bears, dogs, leopards, crocodiles and pythons as well as monkeys and hares. Old and injured tigers have been known to attack humans and domestic cattle.

Population

In the early 1900s, there were around 100,000 tigers throughout their range. Today, an estimated total of around 3,000-4,500 exist in the wild. Below is a breakdown of tiger numbers by subspecies.
  1. Bengal tiger: Less than 2,000
  2. Indochinese tiger: 750-1,300
  3. Siberian tiger: Around 450
  4. Sumatran tiger: 400-500
  5. Malayan tiger: 600-800
  6. South Chinese tiger: Extinct in the wild
  7. Caspian tiger: Extinct
  8. Javan tiger: Extinct
  9. Bali tiger: Extinct
Kết quả hình ảnh cho tiger facts

The Tale of the Tiger

Recognizing a tiger at the zoo is easy. But in their natural habitat, tigers are really hard to find. That’s because their unique orange, black and white stripe pattern helps them blend into the forests and grassy areas where they live and hunt.
Tigers are carnivores. They are quiet, patient hunters with large powerful paws and teeth to help them catch and eat their prey. Some of their favorite meals include pigs, deer, rhinoceroses, and even small elephants.
Tigers hunt for their food, but they are also hunted by humans for their valuable fur and body parts. Because of this, tiger researches think there may only be 3,500 tigers left in the world. This makes them an endangered species.

Also see elephant facts

Range

Historic tiger range ran from Turkey through South and Southeast Asia to the far eastern shores of the continent. Today, they are only found in South and Southeast Asia, China and the Russian Far East.

Behavior

Tigers occupy a variety of habitats from tropical forests, evergreen forests, woodlands and mangrove swamps to grasslands,savannah and rocky country. They are mostly nocturnal (more active at night) and are ambush predators that rely on the camouflage their stripes provide. Tigers use their body weight to knock prey to the ground and kills with a bite to the neck. They are also very good swimmers and have been known to kill prey while swimming.
Tigers essentially live solitary lives, except during mating season and when females bear young. They are usually fiercely territorial and have and mark their large home ranges.

Reproduction

Mating Season: In tropical climates, mostly from around November to April; during the winter months in temperate regions.
Gestation: 103 days.
Litter size: 3-4 cubs.
Cubs follow their mother out of the den at around 8 weeks and become independent at around 18 months of age. They leave their mothers at about 2 ½ years. Mothers guard their young from wandering males that may kill the cubs to make the female receptive to mating.

Thứ Năm, 18 tháng 8, 2016

Many interesting cockroach facts

Have you known about some following interesting cockroach facts before:

1. Cockroach Eating Contests

If a cockroach is beheaded it will never die because of the loss of its head. The only thing killing it will be the thirst as it can’t drink water without a head. Their respiratory system has nothing to do with the mouth as they can breathe through little pores in their body.
Cockroach Eating Contests


The Six Flags Great America theme park in Chicago came up with a very gag-worthy promotion for Halloween back in 2008. They offered park passes to the winner of a contest to eat the most live cockroaches in the space of five minutes. A doctor advised people against taking part because of the microorganisms that live inside the insects. Nevertheless, the parkresurrected the contest in 2011, citing “popular demand.”

The true risk of this sort of contest was shown in Florida. A competitor named Edward Archbold died shortly after a pet shop held a roach-eating competition with a python as a prize. He suffocated after choking on bits of cockroach that got lodged in his throat. Six Flags decided to call off their contest following the death.

2. A Cockroach Can Cause Many Diseases

Cockroaches love to live in filth and dirty places and in these interesting cockroach facts; this fact is about their contaminating abilities. A cockroach is usually completely enveloped in filth. They can move as fast as 3 miles per hour. It will take only a few minutes for a single cockroach to fully contaminate a house. That’s why they can cause many dangerous diseases among humans.


3. Cockroach Facts: German Cockroaches

German cockroaches are considered the most dangerous than others cockroaches. They are the most common type found in almost every nation. They can cause illness, allergy and in some severe cases breathing problems in humans. They can become fully adult within a time span of 36 days.


4. Cockroaches Like to Live in Small, Closed Places

There are many interesting cockroach facts and this fact will tell you about their habit of living in small and closed places. All the cockroaches are thigmotropic i.e. they are sensitive to touch from all sides. They like to crawl in small and tight places to fit in. They really seem to enjoy a place closed from all sides. A pregnant mother cockroach can even manage to fit in a place not wider than two vertically combined coins.


5. Cockroach Facts: Cockroaches Can’t Live Without Water

They are cold blooded and can survive for a month without any food. They usually don’t remain without food for that much long as they can eat anything in their way. Their real problem is the shortage of water. No water for a week can kill them. So primarily they need water to survive not the food.


6. Cockroaches are used as Food in Some Countries

In these cockroach facts, this fact is probably the weirdest of all. Even though they are hated by most people especially women but still there are places in the world where they are served as food. Countries like Ghana, Thailand, Mexico, China and even in some places of America they are served as food. In the November of 2012 a cockroach eating contest was held. But unfortunately the winner of the contest died soon after the competition. He choked to death on the small pieces of roaches in his throat.

Some Amazing Camel Facts

If you’re looking for the most interesting animal facts, you’re at the right place. Here are list of amazing facts about camel

Camel facts
  1. There are two species of true camel. The dromedary, is a single humped camel that lives in the Middle East and the Horn of Africa area. The bactrian, is a two-humped camel that lives in areas of Central Asia.
  2. There are four camel-like mammals that live in South America, llama and alpaca are called "New World camels", while guanaco and vicuna are called "South American camels".
  3. Camels have been domesticated by humans for thousands of years. Used mostly for transport or to carry heavy loads, they also provide a source of milk, meat, and hair/wool.
  4. Camels live on average for 40 to 50 years.
  5. Camels are 1.85 m (6 ft 1 in) at shoulder level and 2.15 m (7 ft 1 in) at the hump.
  6. Camels are capable of running as fast as 65 km/h (40 mph) for a short period of time, and can maintain a speed of around 40 km/h (25 mph).
  7. Dromedary camels weigh 300 to 600 kg (660 to 1,320 lb) and bactrian camels weigh 300 to 1,000 kg (660 to 2,200 lb). 
  8. Camels do not actually hold liquid water in their humps. The humps contain fatty tissue reserves, which can be converted to water or energy when required. They can survive up to six months without food or water by using up these fatty stores.
  9. Camels are well suited to the hot sandy deserts they roam in. Their thick coat insulates them from heat and also lightens during summer to help reflect heat.
  10. A camels long legs help its body to be high from the hot desert surface and a pad of thick tissue called a pedestal raises the body slightly when the camel sits so cool air can pass underneath.
  11. A large camel can drink around 30 gallons (113 liters) in just 13 minutes, making them able to rehydrate faster than any other mammal.
  12. Long eyelashes, ear hair, and closable nostrils keep sand from affecting the camel, while their wide feet help them move without sinking into sand.
  13. Camels have long been used in wartimes. Romans used camels for their ability to scare off horses who are afraid of their scent, and in recent times camels have been used to carry heavy gear and troops across hot sandy deserts.

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