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150. Fact
The largest cave in the world (the sarawak chamber in malaysia) is 2,300 feet (701 meters) long, 980 feet (299 meters) wide, and more than 230 feet (70 meters) high.

151. Fact
The hottest planet in the solar system is venus, with an estimated surface temperature of 864 f (462 c).

152. Fact
The ears of a cricket are located on the front legs, just below the knee.

153. Fact
The first electronic digital computer (called eniac - the electronic numerical integrator and calculator) was developed in 1946 and contained over 18,000 vacuum tubes.

154. Fact
The leg muscles of a locust are about 1000 times more powerful than an equal weight of human muscle.

155. Fact
The cosmos contains approximately 50,000,000,000 galaxies.

156. Fact
There are between 100,000,000,000 and 1,000,000,000,000 stars in a normal galaxy.

157. Fact
Sound travels about 4 times faster in water than in air.

158. Fact
Scientists have discovered that copper pollution of the atmosphere occurred about 2500 years ago.dis was discovered by analyzing ice cores from greenland the pollution was attributed to the romans who used copper for military purposes n to produce coins.

159. Fact
Hydrofluoric acid will dissolve glass.

160. Fact
In a full grown rye plant, the total length of roots may reach 380 miles (613 km).

161. Fact
In a full grown rye plant, the total length of fine root hairs may reach 6600 miles (10,645 km).

162. Fact
A large sunspot can last for about a week.

163. Fact
If you could throw a snowball fast enough, it would totally vaporize when it hit a brick wall.

164. Fact
Boron nitride (bn) is the second hardest substance known to man.

165. Fact
The female tarantula hawk wasp paralyzes a large spider with her sting. She then lays her eggs on the motionless body so that her developing young have a fresh supply of spider meat to feed on.

166. Fact
The seeds of an indian lotus tree remain viable for 300 to 400 years.

167. Fact
The only letter not appearing on the periodic table is the letter j.

168. Fact
Velcro was invented by a swiss guy who was inspired by the way burrs attached to clothing.

169. Fact
Hershey's kisses are called that because the machine that makes them looks like it's kissing the conveyor belt.

170. Fact
October 10 is national metric day.

171. Fact
If you stretch a standard slinky out flat it measures 87 feet long.

172. Fact
The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.

173. Fact
Super glue was invented by accident the researcher was trying to make optical coating materials, n would test their properties by putting dem between 2 prisms and shining light through dem when he tried cyano-acrylate, he couldn't get the prisms apart.

174. Fact
No matter its size or thickness, no piece of paper can be folded in half more than 7 times.

175. Fact
A car traveling at 80 km/h uses half its fuel to overcome wind resistance.

176. Fact
Knowledge is growing so fast that ninety per cent of what we will know in fifty years time, will be discovered in those fifty years.

177. Fact
According to an old english system of time units, a moment is one and a half minutes.

178. Fact
The typewriter was invented in 1829, and the automatic dishwasher in 1889.

179. Fact
The wristwatch was invented in 1904 by louis cartier.

180. Fact
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.

181. Fact
Ten minutes of one hurricane contains enough energy to match the nuclear stockpiles of the world.

182. Fact
Most gemstones contain several elements. The exception? The diamond. It's all carbon.

183. Fact
Diamonds are the hardest substance known to man.

184. Fact
Which of the 50 states has never had an earthquake? North dakota.

185. Fact
When hydrogen burns in the air, water is formed.

186. Fact
Sterling silver contains 7.5% copper.

187. Fact
Cars were first made with ignition keys in 1949.

188. Fact
J.b dunlop was first to put air into tires.

189. Fact
Alexander graham bell, who invented the telephone, also set a world water-speed record of over seventy miles an hour at the age of seventy two.

190. Fact
It is energy-efficient to turn off a fluorescent light only if it will not be used again within an hour or more. This is because of the high voltage needed to turn it on, and the shortened life this high voltage causes.

191. Fact
The earth's equatorial circumference (40,075 km) is greater than its polar circumference (40,008 km).

192. Fact
Lake baikal is the deepest lake in the world.

193. Fact
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.

194. Fact
The earth's average velocity orbiting the sun is 107,220 km per hour.

195. Fact
There is a high and low tide because of our moon and the sun.

196. Fact
The united states consumes 25% of all the worlds energy.

197. Fact
Flying from london to new york by concord, due to the time zones crossed, you can arrive 2 hours before you leave.

198. Fact
There is enough fuel in a full tank of a jumbo jet to drive an average car four times around the world.

199. Fact
The surface speed record on the moon is 10.56 miles per hour. It was set with the lunar rover.

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