The Bigbang - 13.8 Billion Years of cosmic evolution

The Illustris simulation is the most ambitious computer simulation of our Universe yet performed. The calculation tracks the expansion of the universe, the gravitational pull of matter onto itself, the motion of cosmic gas, as well as the formation of stars and black holes. 

These physical components and processes are all modeled starting from initial conditions resembling the very young universe 300,000 years after the Big Bang and until the present day, spanning over 13.8 billion years of cosmic evolution. The simulated volume contains tens of thousands of galaxies captured in high-detail, covering a wide range of masses, rates of star formation, shapes, sizes, and with properties that agree well with the galaxy population observed in the real universe. 

The difference between The Brain of The Woman and the Man

Scientists have known for a while now that men and women have slightly different brains, but they thought the changes were limited to the hypothalamus, the part of the brain that controls sex drive and food intake. A few scientists may have admitted that men's brains were indeed bigger, but they would have tried to qualify this finding by telling you that it was because men were bigger. Because brain size has been linked with intelligence, it's very tricky to go around saying that men have bigger brains. Yet men do seem to have women beat here; even when accounting for height and weight differences, men have slightly bigger brains. Does this mean they're smarter?

The science of sex differences has always been – and still is – fraught with controversy. Some believe that behavioural differences between men and women are mostly due to cultural influences, while others argue that sex differences are largely determined by biology. In reality, the situation is far more complex. It lies somewhere in the middle, and involves two related but independent factors, which are often confused or conflated.

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This video in is Turkish language translated to Arabic language

• The male brain is highly specialized, using specific parts of one hemisphere or the other to accomplish specific tasks. The female brain is more diffused and utilizes significant portions of both hemispheres for a variety of tasks.
• Men are able to focus on narrow issues and block out unrelated information and distractions. Women naturally see everyday things from a broader, "big-picture" vantage point.
• Men can narrowly focus their brains on specific tasks or activities for long periods of time without tiring. Women are better equipped to divide their attention among multiple activities or tasks.
• Men are able to separate information, stimulus, emotions, relationships, etc. into separate compartments in their brains, while women tend to link everything together.
• Men see individual issues with parts of their brain, while women look at the holistic or multiple issues with their whole brain (both hemispheres).
• Men have as much as 20 times more testosterone in their systems than do women. This makes men typically more aggressive, dominant and more narrowly focused on the physical aspects of sex.
• In men, the dominant perceptual sense is vision, which is typically not the case with women. All of a woman's senses are, in some respects, more finely tuned than those of a man.
• Pornographers incorporate male/female differences into the design and marketing of their wares. Just because something might not appeal to a man doesn't mean that a woman won't be attracted to it and vice versa.

Health insurance Saves Your Health but not Your Life

Health insurance is insurance against the risk of incurring medical expenses among individuals. By estimating the overall risk of health care and health system expenses, among a targeted group, an insurer can develop a routine finance structure, such as a monthly premium or payroll tax, to ensure that money is available to pay for the health care benefits specified in the insurance agreement. The benefit is administered by a central organization such as a government agency, private business, or not-for-profit entity. According to the Health Insurance Association of America, health insurance is defined as "coverage that provides for the payments of benefits as a result of sickness or injury. Includes insurance for losses from accident, medical expense, disability, or accidental death and dismemberment". Via

In this video you'll watch a man who challenged a huge vehicle crossing him without being hurt, does health insurance contract includes such things? and does it really pay to his family if he died? 

Post by ‎طرائف حول العالم‎.

Health insurance  divided into 3 major sections

Private Medical Insurance

Private Medical Insurance offers numerous benefits to you, your family and your business including helping to pay your medical bills and expenses if you are treated privately in hospital. It also gives you peace of mind that the health of your employees and your business is protected. Trust us to find the PMI policy that provides the right cover for you.

Income Protection Insurance

Income protection insurance is a financial safety net that supports you if an accident or illness prevents you from working. We are here to guide you through the many options that income protection policies can offer. See more about how we can provide you the right amount of replacement income at the time when you need it most.

Life & Critical Illness Insurance

Our life and critical illness insurance policies have distinct benefits designed to provide the best solution for you and your family. We can help you to make informed decisions on which policies are best suited to your needs. We are committed to providing you with impartial advice and the best value life and critical illness insurance.

Transnistria - One of The Unrecognized states

Transnistria shall mean the eastern River Dnestiria, is a disputed area in Eastern Europe.

 Declared its independence in 1990 during the fall of the Soviet Union and sequential declaration of independence by the Soviet republics.  Transnistria was a then-subsidiary of the Soviet Socialist Republic of Moldova declared independence followed to Transnistria War in 1992 between Russia-backed separatists and the Moldovan police forces.  Moldova does not recognize the independence of Transnistria and considers part of its territory. Transnistria is a de facto independent but lacks any international recognition and is considered legally belonging to Moldova. Recognizing only the Republic of Abkhazia and South Ossetia.

Once upon time, Photos of Afghanistan in 1950s and 1960s

Can you believe that Afghanistan was a developed civil state in the era of the fifties and sixties of the last century!

They have had at that time, schools, universities, factories, radio and television stations and advanced hospitals. Not only that, but they have freedom of dress and mixing between men and women.

State of Afghanistan has built a dam water is probably the Kajaki dam, which was built in 1953 in the Helmand region (southern Afghanistan) at the hands of engineers and experts and U.S. companies left the area after the Soviet invasion.

 One of the Afghan universities with a group of male and female students, it is very much like the University of Cairo in the late sixties.

Five Years Old Child Touched Obama's Hair

Official photographer for the White House, "Betty Souza" I picked up an incredible photo for U.S. President Barack Obama, who bent down until his head reached the 5-year-old U.S. child after his question with all the curiosity: "Is my hair like your hair?", Answered Obama, "Why not try it for yourself?" 

(Why not try it for yourself) a very strong response he knows how to deal with children and break the barrier of fear as if to say to the child try the manner it deems appropriate for the discovery and away from politics greetings to the teacher, professor of educational, Obama

Unbelievable Side Effects Of The Ballet Dancers Feet

The health problem: Professional dancers do tend to have more problems with their legs, feet and ankles as they get older. Part of this is that toe work really does mess up your feet if you aren't very careful and part of that is professionals are more likely to get injured and then to keep dancing on injuries. There's definitely a dance through the pain mentality, and that really catches up to you, usually in the form of arthritis. Pointe can mess up your feet, but I don't know anyone who's had nerve damage. The average person who takes ballet isn't likely to have these problems, because you aren't going to be abusing your body to that degree. You are probably more likely to get some form of foot or ankle injury because of ballet than some random person off the street is.

The Most Dangerous Sharks

 

The three most dangerous sharks are the great wite shark, the tiger shark,and the bull shark. The infamous great white shark attacked the most people becase it thought they where seals.
The tiger shark is the second in the most dangerous sharks. The reason it is called a tiger shark is cause of its stripes.
The bull shark is third in the most dangerous sharks. Also it is a fresh water shark.

Learn more from Discovery channel

50 Interesting Facts

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1. If you are right handed, you will tend to chew your food on your right side. If you are left handed, you will tend to chew your food on your left side.

2. If you stop getting thirsty, you need to drink more water. For when a human body is dehydrated, its thirst mechanism shuts off.

Interesting Facts II

1. Mosquito repellents don't repel. They hide you. The spray blocks the mosquito's sensors so they don't know you're there.

2. Dentists have recommended that a toothbrush be kept at least 6 feet away from a toilet to avoid airborne particles resulting from the flush.

INTERESTING FACTS

1. If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
(Hardly seems worth it)

2. If you fart consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.

Facts about Bees

There are about 20,000 different species of bees in the world. Bees live in colonies and there are three types of bees in each colony. There is the queen bee, the worker bee and the drone. The worker bee and the queen bee are both female, but only the queen bee can reproduce. All drones are male. Worker bees clean the hive, collecting pollen and nectar to feed the colony and they take care of the offspring. The drone’s only job is to mate with the queen. The queen’s only job is to lay eggs.

Binary Neutron Stars

When a large star gets old, it explodes, instantly releasing as much energy as the Sun outputs in ten billion years. This is called a supernova, which is Latin for "Wow, no really, wow."

After the explosion, what's left at the center is a neutron star, which is an extremely dense object with just slightly more mass than our own Sun, crammed into a space the size of New Orleans. A neutron star is so dense that a teaspoonful of one would weigh as much as ten million Oprahs.

Three Horizons

 

If you're standing on the edge of the beach, the ocean looks enormous, as if it stretches off forever. However, because of the Earth's curvature, the horizon is only three miles away (a little farther, if you're wearing platform shoes, or stilts and a clown costume). You can really only see a very small amount of the ocean. The Pacific Ocean, for example, is roughly nine thousand miles across.

Planets

Usually when you see a picture of our solar system's planets, they look something like this:
Now obviously, the relative sizes of the planets are all wrong, and they should be much, much farther apart. And, if you're using an Apple computer, each planet should be themed with a shiny, candy-like coating. But one other important aspect of the picture is not scientifically accurate. The planets shouldn't all have the same brightness.
As you get farther away from the Sun, its light becomes progressively dimmer. I corrected the brightness of the planets in the picture, taking the distance to the Sun into account, and here's what I got:
Even though Venus is farther away from the Sun than Mercury, it actually appears brighter, because the clouds of its thick atmosphere reflect six times as much light as Mercury's dark Moon-like surface.

But aside from that, the Sun's brightness falls off really fast as you move away from it. This is because the intensity of the Sun's light is proportional to the inverse of the square of its distance. So, if you're four times farther away from the Sun than Earth is, the Sun will appear sixteen times darker than it would on Earth. Also, the planets are spaced farther and farther apart as you move out in the solar system.

The upshot of all this is, if you were living on a moon of Saturn, you'd have a pretty big heating bill, because that far from the Sun, the temperature would be roughly two hundred degrees below zero in the daytime. Because there are no plants, the atmosphere wouldn't have any oxygen in it. Plus, the commute would suck and the schools wouldn't be very good. On the other hand, you wouldn't have to worry about mowing the lawn, you wouldn't need sunscreen, and you wouldn't have to listen to your neighbor's barking dog all night, because if they let it run around outside, it wouldn't have anything to breathe as it was freezing to death.
Now, it's true that if you really were out there orbiting Saturn, you'd still be able to see easily, because your eyes would adjust to the fact that the Sun would only appear one percent as bright as it would near Earth. This is more than enough light to see by. It'd probably be a lot brighter than the light bulbs inside your house at night. But it wouldn't have quite the same punch as a nice sunny day on Earth.
It's important to note that your eyes are capable of perceiving a huge range of brightnesses. The full Moon is half a million times dimmer than the Sun, and it still provides just enough illumination to see by if you're stumbling around in the wilderness at night, being chased by government agents because you've just escaped from the secret laboratory where you were grown in a vat. (I am not speaking from personal experience.) So, you wouldn't have that much trouble getting around near Saturn, even if the sunlight was rather dim.
How is it that NASA's pictures don't come out all black? Space probes orbiting the more distant planets simply leave the camera's shutter open longer to collect more light, brightening up the picture. This is just what a handheld camera does automatically when you use it inside your house.
Below, on the left, is a picture of the surface of Saturn's moon Titan, taken by the Huygens probe in 2005. Titan is the only moon in the solar system with a substantial atmosphere. On the right, I've corrected the image to account for the intensity of the Sun at that distance, relative to the sunlight on Earth. I'm not kidding here. This is really how much darker it would be. Eventually your eyes would adapt, and you'd see something, but it would be a lot dimmer than Earth during the daytime.

The farther you get from the Sun, the smaller it appears in the sky. The picture on the left, below, is a sunset on Earth, and the picture on the right is a sunset on Mars, taken by the Spirit rover. I've scaled the images so that the Sun from Mars is two thirds the size of the Sun from Earth, which is how it really would appear. The sunset on Mars is usually blue because of dust in the atmosphere.
I like looking at the Martian sunset picture and imagining how cold it is there. The fact that the Sun would be a little smaller and dimmer and more blue would make Mars seem extra chilly and desolate and not worth visiting.
We're pretty lucky that we live on one of the better planets that's huddling closely around the warmth of our star. Consequently, most of the surface of our planet is often nice and toasty and warm and dry, except of course for the England part of our planet. If you live there, it might seem rather unpleasant, but fortunately, science has demonstrated that it could be much, much worse. You could be living on Titan, freezing in the dark, in a puddle of liquid methane, next to somebody's dead poodle.


Source: www.coolsciencefacts.com

Elephant Teeth

Most mammals have a set of baby teeth that eventually fall out and are replaced by adult teeth, which they keep for their entire lives. Elephants are different, however. They go through six sets of large, brick-like teeth that grow in at the back of their mouths and slowly move to the front as they are worn down. The teeth then fall out and are replaced by fresh ones.
Consequently, elephants have no use for dentists, and have been known to laugh openly when they encounter dental hygienists on safari. There is evidence of elephants in the wild eating five hundred pounds of coconut macaroons in one day, without flossing.
Each set of elephant teeth that grows in is larger than the last. The final teeth are over eight inches long (21 cm) from front to back and weigh more than eight pounds (4 kg).
When an elephant's final set of teeth falls out, the elephant slowly dies of malnutrition or starvation. This is a pretty poorly designed animal, if you ask me.
Old elephants will seek out wet, marshy areas where the plants are softer, so they can more easily eat them. However, in the end, this doesn't really help and they die anyway, much to the amusement of vacationing dental hygienists.

Trees

What are trees made out of? If you had asked me yesterday, I would have guessed that trees absorb raw materials from the ground through their roots, and use them to build new branches and roots as the tree grows. Or, perhaps trees are constructed by hardworking but underpaid gnomes and fairies during the night.
As it happens, that's not the case. Although roots take up a small amount of important nutrients, the majority of the mass of a tree is created from carbon dioxide absorbed from the air by the tree's leaves. That's right. It sounds crazy, but trees are mostly made out of air, and fairies aren't even involved.
When you burn wood, you're just dumping all that carbon dioxide back into the air where it originally came from. Don't do that. It annoys the fairies.

Source: www.coolsciencefacts.com

Homeobox Genes

OK this is totally crazy. All animals have a set of genes (sequences of atoms in their DNA) that regulate how they develop from a miniscule single cell to their final enormous multicellular form. But, the super amazing thing is, those genes are all the same. For every animal. Of every species. They're the same exact genes in whales and people and tax accountants and leeches. These genes are called homeobox genes. ("Homeo" from the Greek word for "same", and "box" from the Greek word for "cardboard box".)
Some of these genes encode for high level structures, like "make an eye here". The actual details of how to make the specific kind of eye are encoded elsewhere in the DNA. However, you can take the high level "make an eye" gene out of a mouse, and splice it into the middle of a fly's genes that control how its legs grow, and the fly will wind up with a semifunctional fly's eye on its knees. Scientists have actually performed this experiment. The flies were not amused.
All of this implies that flies and mice share a common ancestor. Scientists have recently determined that this ancestor is named Steve and lives in rural New Hampshire with his parents and it's about time he moved out and got a job.
Curiously, plants and animals do not share the same set of homeobox genes. This suggests that the homeobox genes evolved separately in plants and animals. I say we patent the concept of homeobox genes and then sue the plants for all they've got.

Source: http://www.coolsciencefacts.com

Moon Facts

The tidal forces of the Moon (and the Sun) don't only act on the oceans, they act on the land as well. If you stand on the equator, the land beneath you will go up and down by as much as 21 inches (55 centimeters) over the course of a day. You won't notice this though, because you will be drinking too much tequila.
Since the same side of the Moon always faces the Earth, each lunar day lasts a whole Earth month. Consequently, anybody could outrun the setting Sun on a bicyle. Well, maybe you could. I am old and fat.
When the Moon was created, it was a lot closer to the Earth, and appeared ten times larger in the sky. Each year, the Moon moves 4 centimeters away from the Earth. I'm not sure why this is. Maybe we smell bad and it doesn't want to be

Top 20 Amazing Science Facts

Another trivia list! This list explores a variety of fascinating scientific
facts that you probably are unaware of. Science is still a very mysterious
subject so there are millions of trivial facts about it – this will be the first
of many scientific fact lists in the future.

Facts 1 – 5


1. There are 62,000 miles of blood vessels in the human body – laid end to
end they would circle the earth 2.5 times
2. At over 2000 kilometers long The Great Barrier Reef is the largest living
structure on Earth
3. The risk of being struck by a falling meteorite for a human is one
occurrence every 9,300 years
4. A thimbleful of a neutron star would weigh
over 100 million tons
5. A typical hurricane produces the energy equivalent to 8,000 one megaton
bombs.

Facts 6 – 10


6. Blood sucking hookworms inhabit 700 million people worldwide
7. The highest speed ever achieved on a bicycle is 166.94 mph by Fred
Rompelberg
8. We can produce laser light a million times brighter than sunshine
9. 65% of those with autism are left handed
10. The combined length of the roots of a Finnish pine tree is over 30 miles.

Facts 11 – 15


11. The oceans contain enough salt to cover all the continents to a depth of
nearly 500 feet
12. The interstellar gas cloud Sagittarius B contains a billion, billion,
billion liters of alcohol [JFrater is planning to move there in the near future]
13. Polar Bears can run at 25 miles an hour and jump over 6 feet in the air
14. 60-65 million years ago dolphins and humans shared a common ancestor
15. Polar Bears are nearly undetectable by infrared cameras, due to their
transparent fur.

Facts 16 – 20


16. The average person accidentally eats 430 bugs each year of their life
17. A single rye plant can spread up to 400 miles of roots underground
18. The temperature on the surface of Mercury exceeds 430 degrees C during
the day, and, at night, plummets to minus 180 degrees centigrade
19. The evaporation from a large oak or beech tree is from ten to twenty-five
gallons in twenty-four hours
20. Butterflies taste with their hind feet and their taste sensation works on
touch – this allows them to determine whether a leaf is edible