Seven Wonders of the Industrial World

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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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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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Historic inventions of archaeological importance, fun to know

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Archaeological gems Most people think that this is the scientific era and all the inventions have been done in the recent years only, but these astonishing artifacts show that even in ancient times, people were interested in science and they too knew a lot about it. Antikythera mechanism   This is the world’s oldest gear system used to calculate the positions of sun, moon and eclipse positions. Following link will provide the detailed information about the subject. Antikythera mechanism Ancient chemical warfare The evidences of an ancient chemical warfare from Roman times (around 256 AD) have been found in the city of Dura-Europos. 20 armed dead bodies of Roman soldiers were found in a 2 m wide and high counter tunnel dug by them to counter the Persian tunnel. Being armed and not having any physical wounds, the reason of the deaths of 20 soldiers at once was a great mystery. The only possible solution to this question is that Persian ambushed them with poisonous ga...
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