What is black hole commemorative coin? What is the relationship between black hole commemorative coin and Hawking? Many friends don't know. Let's take a look with Xiaobian.
What is black hole coin
The Royal Mint issued a commemorative coin with a denomination of '50p' (about RMB 4.4) on the 12th, which is engraved with the names of black hole and Hawking, as well as the black hole entropy formula s = KCa / 4G jointly proposed by Beckenstein and Hawking, to commemorate the first anniversary of the death of scientist Stephen Hawking (1942.1.8-2018.3.14).
As early as March 11, Royal Mint official twitter announced the sale of the commemorative coin. From 12:00 on the 12th, consumers can buy the commemorative coin through the link address announced together with the commemorative coin. The price of the alloy commemorative coin is 10 pounds (about 88.09 yuan), and the most expensive one is made of pure gold, with the price as high as 795 pounds (about 7003.71 yuan).
In response, changechecker, a commemorative coin trading website, said Hawking would be the third person whose Royal Mint issued commemorative coins within a year of his death, while Winston Churchill and Queen Elizabeth would be the other two.
Edwina Ellis, the coin designer, said she wanted to show how Hawking made difficult topics accessible and fascinating.
Nicholas & middot; Howell, consumer director of the Royal Mint, said: 'we are very happy to pay homage to Hawking with coins. Hawking is one of the most outstanding physicists in the world. His breakthrough work in popularizing science and black holes is a great contribution to mankind. '
In addition, the Royal Mint also released a video in which Professor Hawking's daughter Lucy and brother Tim visited the Royal Mint. Lucy said she was glad to see her father appear on the commemorative coin like Isaac Newton and Charles Darwin, which was a "great honor" for her father.
According to Hawking, it was not entirely understood that the 'black hole' he found was the biggest achievement. At the age of 22, Hawking was diagnosed with a rare motor neuron disease, progressive cryosis. In 1988, Hawking completed a brief history of time. This book, which introduces cosmology in simple terms, has a global circulation of more than 10 million.
Hawking is also thought to be the new face on the 50 pound note issued in the UK this summer.