Facts about Chemistry..

Well, after posting a lot about biological facts, lets move on to Chemistry now. Chemistry, mainly dealing with chemicals, is a branch of physical science that studies the composition, structure, properties and change of matter. It is such a fascinating science subject and mainly concerned about atoms and molecules. So, now, without further delay, lets look at some facts about chemistry ( or chemicals )..

1. Unlike many substances, water expands as it freezes. An ice cube takes up about 9% more volume than the water used to make it.

2. If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass.

3. The only letter that doesn't appear on the periodic table is letter J.

4. The human body contains enough carbon to provide 'lead' (which is really graphite) for about 9,000 pencils.

5. The rarest naturally-occurring element in the earth's crust may be astatine. The entire crust appears to contain about 28 g of the element.

6. Lightning strikes produce O₃, which is ozone, and strengthen the ozone layer of the atmosphere.

7.  The only elements that are liquid at room temperature are bromine and  mercury. However, you can melt gallium by holding a lump in the warmth of your hand.

MH370 is still missing..

It has been more than 200 hours since MAS plane MH370 'vanished' whilst on air. The plane, which was on the way to Beijing,China departed at 0041 hours from Kuala Lumpur, Malaysia and supposed to reach by 0630 hours.

The last radar contact was at 0122 hours, near the borders between Vietnam- Malaysia. The flight was piloted by Captain Zaharie Ahmad Shah, 53, with total flying hours of 18,365 hours. First officer, Fariq Ab.Hamid, 27, has a total flying hours of 2,763 hours. There were 228 passengers from China (153), Malaysia (38), Indonesia (7), Australia (6), India (5), France (4),United States (3), Canada (2), New Zealand (2), Ukraine (2), Russia (1), Taiwan (1),  Netherlands (1), and Iran (2, who flew with stolen passports, was first identified as Italian and Austrian). There were 12 crews on board, all of them are Malaysians.

An aircraft was detected by military radar near Pulau Perak, Kedah, (northwest) Malaysia at 0240 hours, but it is not confirmed as MH370. At the time, the aircraft is said to be carrying a total fuel of 7.5 hours. The Search and Rescue (SAR) operations have been expanded from Sumatra, Indonesia to Hong Kong, focusing mainly in South China Sea. About 12 nations joins the mission of finding MH370. There are many agencies such as FBI, Boeing, Rolls Royce joins the investigation team. So far, 47 aircraft and 48 ships and vessels are deployed to assist the operation, and it is said that more nations will join the mission.

On 14th March, U.S. officials indicated that the plane might be crashed in Indian Ocean. India started their operations in searching the Andaman and Nicobar Islands, where there are more than 500 uninhabited islands. About 2.3 million people starts to find the missing airliner on their PCs through Tomnad.com , a website which provides the satellite images.

Meanwhile, on 15th March, it is confirmed that MH370 made an 'air-turn back' and it is  confirmed that the plane deviates from its route, went off course and flew towards the west. SAR operations in South China Sea is stopped and a new search area began, the Bay of Bengal and Indian Ocean. In a press meet on the same day, Prime Minister of Malaysia, Datuk Seri Najib said that the plane might headed to one of the possible corridors, the Northern corridor ( border of Kazakhstan, Turkmenistan to Northern Thailand ) or the Southern corridor ( from Indonesia to Southern Indian ocean ). A new data obtained shows the last confirmed contact of the plane with satellite was on 8th March at 0811 hours, indicates how far the plane flew. The Prime Minister also said that the transponder and other communications is switched off in a deliberate action by 'someone' in the plane.

Since the day MH370 'vanished', many theories came up, such as the plane crashed while in mid air, hijacked and so on. Many people turned to be a one day detectives by coming up with their own theories. A man, claimed to be Raja Bomoh Sedunia ( bomoh is a Malay word for Shaman ), said that he could locate the plane, but only turned up to be a laughing stock by people by his acts.

The SAR operations is still going on and hope for the best that the plane could be found. More updates will come soon..     

Something that I learned about humans..

Liver is one of the 'busy' and hard working organ in body. It has about 500 different functions. Some of the function of liver are ; plasma protein synthesis, decomposition of red blood cell, bile production, and detoxification.

The surface area of a human lung is equal to a tennis court. It is filled with thousands of branching bronchi and tiny, grape-like alveoli in order to more efficiently oxygenate the blood,. These are filled with microscopic capillaries which oxygen and carbon dioxide. The large amount of surface area makes it easier for this exchange to take place, and makes sure you stay properly oxygenated at all times. 

Your left lung is smaller than your right lung to make room for your heart. While the lungs are fairly similar in size, the human heart, though located fairly centrally, is tilted slightly to the left making it take up more room on that side of the body and crowding out that poor left lung. 

You could remove a large part of your internal organs and survive. The human body may appear fragile but it’s possible to survive even with the removal of the stomach, the spleen, 75 percent of the liver, 80 percent of the intestines, one kidney, one lung, and virtually every organ from the pelvic and groin area.

The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest. 

Every day the average person loses 60-100 strands of hair. Unless you’re already bald, chances are good that you’re shedding pretty heavily on a daily basis. Your hair loss will vary in accordance with the season, pregnancy, illness, diet and age.  

The colder the room you sleep in, the better the chances are that you’ll have a bad dream. It isn’t entirely clear to scientists why this is the case, but if you are opposed to having nightmares you might want to keep yourself a little toastier at night. 

Right-handed people live, on average, nine years longer than left-handed people do. This doesn’t have a genetic basis, but is largely due to the fact that a majority of the machines and tools we use on a daily basis are designed for those who are right handed, making them somewhat dangerous for lefties to use and resulting in thousands of accidents and deaths each year. 

Koalas and primates are the only animals with unique fingerprints. Humans, apes and koalas are unique in the animal kingdom due to the tiny prints on the fingers of their hands. Studies on primates have suggested that even cloned individuals have unique fingerprints. 

Tears and mucus contain an enzyme (lysozyme) that breaks down the cell wall of many bacteria. This is to your advantage, as the mucus that lines your nose and throat, as well as the tears that wet your eyes are helping to prevent bacteria from infecting those areas and making you sick. 

Your ears secrete more earwax when you are afraid than when you aren’t. The chemicals and hormones released when you are afraid could be having unseen effects on your body in the form of earwax. Studies have suggested that fear causes the ears to produce more of the sticky substance, though the reasons are not yet clear.  

A human head remains conscious for about 15 to 20 seconds after it is been decapitated. While it might be gross to think about, the blood in the head may be enough to keep someone alive and conscious for a few seconds after the head has been separated from the body, though reports as to the accuracy of this are widely varying.

Danger of Killing Cockroaches..

Of course cockroach is a irritating insect but killing it will cause danger to human. The content in cockroaches' stomach is very dangerous. This is because stomach of cockroach usually contains tiny and discrete worms.

The worms are very tiny, and short and can be seen with naked eyes. If you really want to see the worm, put a just-dead cockroaches' stomach on a piece of black paper, and you can see them in motion.

The worms are very dangerous to us as it touches our skin, especially feet. It can enter our body through the skin pore or wounded area.