Tuesday, 24 November 2020
Hello and welcome to Tuesday and indestructible stuff day and today it's diamonds everyone has heard of diamonds and how tough they are. In fact they are one of the hardest natural substance in the world.
Diamonds are smooth and dull when they come out of the ground and have to be cut into geometric shapes to make them sparkle. Long ago this could only be done with another harder diamond, however, today lasers are used.
Diamond is made from carbon, the same thing as coal and the soft dark grey graphite that give pencils their mark marking power. So why is diamond so much harder?
Well diamond can only be formed when carbon is squeezed incredible hard, and this can happen in two ways. Very deep inside the ground as in very deep like 150-200 km down, as rocks push against each other. The diamonds then move up to the surface in volcano eruptions.
Or it can happen when an asteroid or meteorite crashes into the earth with incredible crushing power.
Of course we now can make artificial diamonds by squeezing carbon in a lab.
Monday, 23 November 2020
Hello world, hello Monday here are this weeks facts............
Microwave ovens were invented by chance in a laboratory accident, really ??????
By 1929 eleven people had died from unnatural causes, including Lord Carnation's relatives and Carter's personal secretary, Richard Bethell and Bethell's father Lord Westbury.
Lord Westbury took his own life by jumping from a building, he left a note that said, “I really can't stand any more horrors, so I am making my exit.
Mel Blanc the voice of Bugs Bunny was allergic to carrots
Approximately one third of the Earth's land surface is desert.
Thursday, 19 November 2020
Tuesday, 17 November 2020
Another Tuesday is here so that means it is indestructible stuff day, today it is Tungsten this I have heard of.
In the early days of light bulbs inventors faced a tricky problem, to make bulbs glow they had to make electricity flow through a fine wire or filament.
Filaments made of carbon or platinum soon overheated and broke, meaning light bulbs burned out often but when they tried tungsten they lasted longer and light bulbs really took off.
Tungsten worked so well because it is one of the strongest, hardest and most heat-resistant metal there is. In fact it has the highest melting point of any metal.
Tungsten is also incredibly dense and heavy, if a soccer ball was made of solid tungsten it would weigh more then 100kilos or 220 pounds.
Monday, 16 November 2020
Another Monday, another day for facts...........
Although modern images of India often show poverty and lack of development, however,it was the richest country on earth until the British invasion on the early 17th century.
Cuba in the only island in the Caribbean to have a railway.
The first documented lighthouse was as Alexandra built in 200BC on the island of Pharos by the Egyptian Emperor, Ptolemy.
It is considered one of the seven wonder of the world, it is thought to have been 150 metres or 492 feet high about 3 times higher then modern lighthouses.
Roman Emperors built many lighthouses to assist their navigators. In 90AD the Emperor Caligula ordered a lighthouse in the country and stills stands in the ground of Dover Castle.
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