Thursday, August 23, 2012

A Fish can copy Human voice


Normally we know that some birds can copy the human voice. But do u know that there is one kind of fish in sea which can also copy human voice. The name of that kind of fish is Porpoise.
 
Porpoise is an aquatic animal that imitates man in several respects. In appearance it looks like a fish but it does not come in the category of fish. It comes in the category of mammals as it gives birth to young ones and feed them. Dolphin, whale and porpoise come under this category. Porpoise breathe through lungs as gills are absent in its body. On the head of the porpoise there is a hole which is called as a nose. For breathing it brings its head above the surface of water and breathes through the nose. It is mostly found in the Pacific and the Atlantic Oceans. The color of its body is either brown or black. Its tail is in flat position. The length of its body is up to 1.75 metres. There are about 80 to 100 teeth in its mouth. The porpoise is the cleverest animal and is specialist in imitating a man. It can imitate human voice. In the marine studio of Florida, there is porpoise which speaks in human voice.

Thursday, August 9, 2012

List of states with nuclear weapons



There are currently eight states that have successfully detonated nuclear weapons. Five are considered to be "nuclear-weapon states" (NWS) under the terms of the Nuclear Non-Proliferation Treaty (NPT). In order of acquisition of nuclear weapons these are: the United States, Russia (successor state to the Soviet Union), the United Kingdom, France, and China. Nations that are known or believed to possess nuclear weapons are sometimes referred to as the nuclear club.
Since the NPT entered into force in 1970, three states that were not parties to the Treaty have conducted nuclear tests, namely India, Pakistan, and North Korea. North Korea had been a party to the NPT but withdrew in 2003. Israel is also widely believed to have nuclear weapons, though it has refused to confirm or deny this, and is not known to have conducted a nuclear test.

The five nuclear-weapon states under the NPT

Country
Warheads active/total
Year of first test
United States
2,150 / 8,000
1945
Russia
1,800 / 10,000
1949
The United Kingdom
160 / 225
1952
France
290 / 300
1960
China
n.a. / 240
1960
 
 Non-NPT nuclear powers

India
n.a. / 80–100
1974
Pakistan
n.a. / 90–110
1998
North Korea
n.a. / <10
2006
  
Undeclared nuclear powers

Israel
n.a. / 80–200
possibly 1979

Sunday, August 5, 2012

Cloning

Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends?
 Cloning is the creation of an organism that is an exact genetic copy of another. This means that every single bit of DNA is the same between the two!
You might not believe it, but there are human clones among us right now. They weren't made in a lab, though: they're identical twins, created naturally. Below, we'll see how natural identical twins relate to modern cloning technologies.

Dr. Ian Wilmut, the man who headed the research team which introduced a seven-month old Finn-Dorset lamb named Dolly into the world, transgressed long-standing barriers and evoked dormant ethical questions with the arrival of Dolly.  Dolly has since been joined by Molly and Polly - two genetically identical lambs carrying human genes that produce a factor  for the treatment of haemophilia.

Scientists think that at the future 100 of Albert Einstein or 100 of Hitlar can be created by cloning.