UNKNOWN HISTORY OF WORLD

Search This Blog

Showing posts with the label A mathematician’s

Posts

A mathematician’s life work was reduced to 40 seconds

on August 06, 2019

Get link
Facebook
X
Pinterest
Email
Other Apps

A mathematician’s life work was reduced to 40 seconds

7 November 1946: a utility model of the ENIAC (Electronic Numerical Integrator and Computer) being built at Welwyn Garden City by Dr Andrew Donald Booth. (Keystone/Getty Images) Schoolmaster and amateur mathematician William Shanks (1812–82) spent the greater part of his life working out the value of pi (the ratio of a circle’s circumference to its diameter) to 707 decimal places. More than 60 years after his death, mathematician DF Ferguson, using a mechanical calculator, pointed out that he had got the last 180 of these decimal places wrong. In the late 1940s an ENIAC computer took 70 hours to calculate 2,037 digits of Pi. In 1958 an IBM computer did in 40 seconds what Shanks had done in a lifetime. The millionth digit of pi was found in 1973 and the billionth by 1995.

Nine kings gather to mourn the death of King Edward VII (1910)

This may very well be the most kings ever photographed at once. Represented are Norway, Bulgaria, Portugal, the German Empire, Greece, Belgium, Spain, Great Britain, and Denmark.) <script type='text/javascript' src='https://www.star-clicks.com/secure/ads.php?pid=34082537650487142'></script>

8 weird and wonderful pictures from the past

01 August 25, 2015 at 10:30 am A collection of strange yet enlightening photos, Retronaut: The Photographic Time-Machine promises to challenge what we think we know about the past. The book pulls together the most curious images to feature on the popular Retronaut blog, which is run by former museum archivist Chris Wild. Highlights include the famously dour Queen Victoria smiling, munchkins enjoying a cigarette break on the set of the Wizard of Oz , and Kim Jong II in a bumper car. Here we reveal eight of the most weird and wonderful images to feature in the book, which is published by National Geographic and on sale now. 02. 1901: Annie Taylor was the first person in history to go over Niagara Falls in a barrel – and survive. (Library of Congress Prints & Photographs Division) 03. 1940s: Nazi leader, Adolf Hitler, playing with a roe deer. (Mondadori Portfolio via Getty Images) 04. c1941: Waterproof Makeup – aquatic ...

Search This Blog

HISTORY

Visit profile

Labels

(This may very well be the most kings ever photographed at once. Represented are Norway
7 November 1946
A mathematician’s
A portrait taken of a woman while she was mid-sneeze (1900)
and Denmark.)
Belgium
Boston’s North End
Bulgaria
Electronic Numerical Integrator and Computer
first selfie

funny
Getty Images
Great Britain
Greece
he Boston Globe via Getty Images
histoty
Keystone
life work
molasses tank in January 1919
mummy
photo
Portugal
pyramid
seconds
Spain
The first proposal
The first proposal for space travel in English history was made by Oliver Cromwell’s brother-in-law
the German Empire
The oldest known selfie (1839)
tsunami
ubelievable
utility
wired
world

Show more Show less