Unique facts about Science
1 . Spider webBelieve it or not spider webs stronger than steel ? That's what happened . In fact, the U.S. military had planned to make bulletproof jackets made from spun cobwebs . So the scene in the movie Spiderman 2 which stop the train using a spider web is not something impossible .
2 . The mass of ice typeDid you know that the density of ice 89 % lighter than the density of water ? As a result 11% of the iceberg is above the water surface . This fact makes icebergs floating on the sea is very dangerous , especially for ships sailing . This is evident in the historical accident that befell the Titanic in 1912 . Ship " can not sink that " the sunk after hitting an iceberg in the North Atlantk sea .
3 . fireworksThe history of fireworks stems from the discovery of firecrackers in the 9th century in China . The story at the time was a cook accidentally mixed three ingredients of black powder ( black powder ) and KNO3 is the salt peter ( potassium nitrate ) , sulfur ( sulfur ) and charcoal ( charcoal ) . It turns out that all three materials are flammable gunpowder . If the material is fed into the third piece of bamboo and bamboo wicks burned then there will be the sound of a loud explosion .
4 . tankersDid you know that the largest tankers in the world is the Jahre Viking tankers with a width of 69 meters and 458 meters long , 77 feet longer than the Empire Street Building New York . Capable of carrying as many as 14 million oil barrels that can afford to keep the vehicle engine on this earth for 2 WEEKS! WOW ! !
5 . cactusDo you know why cacti can live with minimal environmental condition of water ? The word cactus is derived from the Greek " KAKTOS " which means thorns . Actually cactus have leaves . However, the leaves turned into thorns , to reduce evaporation of water . Analogues such as this , if we kepedesan then we took the water is still hot then pour the water into a plate or bowl , then a few minutes the water was even colder aka becoming more widespread due to the cooling area .
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