103. Fact

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

104. Fact

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

105. Fact

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

106. Fact

90 years ago: the grand canyon became a national monument & cellophane is invented.

107. Fact

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

108. Fact

70 years ago: the teletype and pvc (polyvinyl-chloride) were invented.

109. Fact

60 years ago: otto hahn discovered nuclear fission by splitting uranium, teflon was invented.

110. Fact

50 years ago: velcro was invented.

111. Fact

40 years ago: an all-female population of lizards was discovered in armenia.

112. Fact

30 years ago: the computer mouse was invented.

113. Fact

20 years ago: first test-tube baby born in england, pluto s moon, charon, discovered.

114. Fact

10 years ago: first patent for a genetically-engineered mouse was issued to harvard medical school.

115. Fact

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

116. Fact

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.

117. Fact

The longest cells in the human body are the motor neurons. They can be up to 4.5 feet (1.37 meters) long and run from the lower spinal cord to the big toe.

118. Fact

There are no poisonous snakes in maine.

119. Fact

The blue whale can produce sounds up to 188 decibels. This is the loudest sound produced by a living animal and has been detected as far away as 530 miles.

120. Fact

The largest man-made lake in the u.s. Is lake mead, created by hoover dam.

121. Fact

The poison arrow frogs of south and central america are the most poisonous animals in the world.

122. Fact

A new born blue whale measures 20-26 feet (6.0 - 7.9 meters) long and weighs up to 6,614 pounds (3003 kg).

Compound
Compound : blue vitriol
Chemical Name : copper sulphate
Chemical Formula : cuso4.5h2o.      .. More >>