Seven Wonders of the Industrial World

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Japanese spider crab: Strange Species

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The Japanese spider crab It is an orange colored crab which has the longest leg span among any arthropod. The length of the legs from toe to toe may reach up to 3.8 meters and its body may grow up to 40 cm. the total weight of the whole adult crab is about 19 kg. It is a species of marine crab that live in the water bodies and costs of japan. They face a little bit of fishery, which led to the decline in their number and was preserved to its present status. They are mostly found in the southern cost of japan and adults may be easily found at the depths of 600 meters. They like to live in the holes or vents in the bed of the ocean. The larva of Japanese spider crab is carried by the female for around 70 days and when born, larva is in transparent state. The Japanese spider crab feeds both on aquatic plants and animals. Due to their long and strong legs they are dangerous and look strange in appearance too. In many parts of japan, it is also considered as delight on the dini...
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Ceramic House, Colombia

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  Ceramic House, Colombia This is a Ceramic house designed and built by Octavio Mendoza in Colombia. The house looks comical in shape and is very strong. It is built in the same way as a brick or mud utensils are made, by first moulding a desired shape out of mud, allowing it to drain in sunlight for proper time and finally backing it in intense heat. The houses built in this style has a very special feature that it has pores inside its walls which occur when water is evaporated on heating and space is left voided in the forms of pores that acts as thin capillaries. Due to this the house cools automatically in summers and is earthquake proof, being made of a single brick. The only drawback is that it is difficult to build if levels are required and repair and renovations weakens the house. Also there are various chances of errors since larger voids can cause a poor quality house.
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Bell Rock Lighthouse

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Bell Rock Lighthouse Bell Rock is the world’s oldest surviving sea lighthouse constructed on an offshore reef in Scotland and is one of the ‘Seven Wonders of the Industrial World’ because of the challenges that were faced in building the lighthouse. It has been constructed on a rock named as Bell Rock which was named so because of an attempt to install a warning bell on it in 14 th century.  Though the bell was successfully installed, it was stolen by a Dutch pirate after just one year of installation. Being an offshore reef, Bell Rock was a major cause of Shipwreck before the construction of the lighthouse in 1810, since it remained immersed for about 20 hours a day even in low tide. Around 6 ships were lost every winter and more than 60 ships were lost in one storm. The construction of Bell Rock lighthouse was proposed by the Scottish engineer Robert Stevenson in 1799 and the proposal got approved in 1806 after the all the crew of the warship HMS York died in Wreckag...
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