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10 Amazing Scientific “Facts of Discovery, Invention & Wonder” interesting facts for Class 10 and 12 Part 3

Facts of Discovery, Invention & Wonder – 3

581. After the discovery of the X- Ray in 1895, a London- based firm began selling x- ray proof underwear.

582. Light travels a distance of 18,00,00,000 kilometres in a minute, which means 30,00,000 kilometres in a second.

583. The first real motorcycle was invented by Gottlied Daimler, a German engineer in the year, 1885. He used a wooden bicycle frame to which he attached a four- stroke piston engine to obtain a motorcycle.

584. An atom bomb can destroy an area of 44, 000 square kilometers in a minute.

585. In Brazil , there’s a storm which blows at the rate of 170 kilometers a minute.

586. In 1960, the ‘Triton’ became the first submarine to circumnavigate the world. It covered an area of 36,014 miles in 76 days.

587. The Great Wall of China is the world’s largest man- made structure. The wall which is about 9 meters high , was first erected in about 214 B.C. by the Chinese Emperor, shih Huang –it to keep out the Mongols. Rebuilt several times thereafter, the present one is said to be the work of the Ming emperors who ruled China from 1368 A.D. to 1644 A.D. Running about , 4,000 miles (6,400 km) from east to west, it is by far the longest in the world.

588. Despite tis massive dimensions, the Great Wall of China cannot be seen from the moon, a fact that has been proved recently.

589. The fastest boat in the world is the Spirit of Australia and travels at a speed of 500 km per hour.

590. Experiments conducted in college laboratories have demonstrated that hard rock music played to a colony of termites, induces the insects to go into a frenzy and chew through wood at twice their normal rate.

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