Science facts

 

Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together).

Fuse: to join together physically, or to make things join together, and become a single thing.

 

The most dangerous animal in the world is the common housefly. Because of their habits of visiting animal waste, they transmit more diseases than any other animal.

 

Snakes are true carnivorous because they eat nothing but other animals. They do not eat any type of plant material.

Carnivorous: some one who eats meat.گوشتخوار

 

The world's largest amphibian is the giant salamander. It can grow up to 5 ft. in length.

amphibian :animals such as frogs that can live both on land and in water. دوزیست

salamander: a small animal similar to a   lizard, which lives on land and in the water سمندر

 

The smallest bone in the human body is the stapes or stirrup bone located in the middle ear. It is approximately .11 inches (.28 cm) long.

Stapes / Stirrup bone: استخوان رکابی

 

The human eye blinks an average of 4,200,000 times a year.

Blink: to shut and open your eyes quickly. چشمک زدن

 

100 years ago: The first virus was found in both plants and animals.

 

90 years ago: The Grand Canyon became a national monument & Cellophane is invented.

Monument: a very old building or place that is important historically.اثر تاریخی

 

80 years ago: The food mixer and the domestic refrigerator were invented.

domestic refrigerator: یخچال خانگی

 

70 years ago: The teletype and PVC (polyvinyl-chloride) were invented.

Teletype: تلگراف

 

60 years ago: Otto Hahn discovered nuclear fission by splitting uranium, Teflon was invented.

nuclear fission: شکافت هسته ای

 

50 years ago: Velcro was invented.

 

40 years ago: An all-female population of lizards was discovered in Armenia.

 

30 years ago: The computer mouse was invented.

 

20 years ago: First test-tube baby born in England, Pluto’s moon, Charon, discovered.

Test-tube:لوله آزمایش

 

5 years ago: The first successful cloning of human embryo.

embryo : an animal or human that has not yet been born, and has just begun to develop.جنین

 

 

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