Some sharks may attack human beings if attracted by under water noises, erratic swimming, the presence of a large number of bathers, or the glint of jewellery or some other article. But probably the greatest provocation to a shark is the presence of blood, for instance from a speared fish or live bait. Sharks are most likely to attack during …

The first opinion of our universe were put forward by ancient astronomers in about 2200 BC – AD 1200. The astronomers who recorded observations were from Babylon, China, India, Italy, Greece and Egypt. They didn’t used sophisticated instruments to make observations.

How many hours a night do you sleep? Eight? Seven? Five? Everybody has his or her own sleep requirements. But we all do it. Until recently, scientists knew very little about why we sleep and what happens when we do. But with growing research and experimentation, we’ve learned some fascinating things about the state in which we spend nearly a …

The human brain is at the top of the head, behind the forehead. The brains of other animals are behind their faces. Compared with the brain of an animal, the human brain has became enormous and room has had to be found somewhere for it. It is the size of our brain that more than anything else distinguishes us from …

About 1.9 liters. The stomach is crescent moon shaped organ situated between the end of the gullet and the entrance to the small intestine. Its walls can be distended and its size varies according to the amount of food it contains.

The number varies because some people have much thicker hair strands than others but the average number is 144,000.

Normally there are twenty two. They are all flat and irregularly shaped and they form the face and protect the delicate brain. The brain case is called the cranium, the back of the head is called the occipital plate and the front part between the eyebrow and where the hair line begins is the forehead.

About 200, including the small ones in the wrist, ankles and the lower end of the spine.

Alphabetical Listing of Human Genome Acronyms AAAI — American Association ForArtificial Intelligence AAAS — American Association For The Advancement of Science AACC — American Association For Clinical Chemistry AACR — American Association For Cancer Research AAI — American Association of Immunologists AAIP — American Association of Investigative Pathologists AANP — American Association of Neuropathologists AAP — Association of American Physicians …

International Firefighters Day (IFFD): It is observed on May 4th every year to honour the firefighters who put their lives at risk when they go out on a call. The main purpose of celebrating this day is to thank firefighters for the services they all provide. Take a look at International Firefighters Day in detail. International Firefighters Day: 04 May …