Mathematical mystery of ancient Babylonian clay tablet solved

Tallbloke's Talkshop

Some Pythagorean triples [credit: Cmglee / Wikipedia]
Could Babylonian base-60 maths be about to make a comeback? The tablet has been dated to between 1822 and 1762 BC and is based on Pythagorean triples, as Phys.org reports. It uses ‘a novel kind of trigonometry based on ratios, not angles and circles’.

UNSW Sydney scientists have discovered the purpose of a famous 3700-year old Babylonian clay tablet, revealing it is the world’s oldest and most accurate trigonometric table, possibly used by ancient mathematical scribes to calculate how to construct palaces and temples and build canals.

The new research shows the Babylonians beat the Greeks to the invention of trigonometry – the study of triangles – by more than 1000 years, and reveals an ancient mathematical sophistication that had been hidden until now.

Known as Plimpton 322, the small tablet was discovered in the early 1900s in what is now…

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Norway’s Washout Summer, Farmers Despair at rain, rain, rain

If it’s 97% it must be a consensus 😉

WeatherAction News

Despite the early heatwave it has been for the most part an increasingly poor wet summer, highlighted best by the Central England Temperatures which have been going down;

Further north, it has of course been far wetter, however nothing like in Western Norway where it’s been very wet in some places for 70 out of 72 (97%!) days as the Jetstream has increasingly taken a sojourn over Northwestern Europe.

Winds at 250hpa. Image courtesy earth.nullschool.net

Norway has indeed had a poor summer;

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Voyager spacecraft still reaching for the stars and setting records after 40 years

Great story

Tallbloke's Talkshop


These two 1977 vintage machines really are ‘cosmic overachievers’ as this Phys.org report calls them. Voyager 1 reached interstellar space in 2012, but the last science instrument is not due to be switched off until 2030.

Humanity’s farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September.

Despite their vast distance, they continue to communicate with NASA daily, still probing the final frontier. Their story has not only impacted generations of current and future scientists and engineers, but also Earth’s culture, including film, art and music.

Each spacecraft carries a Golden Record of Earth sounds, pictures and messages. Since the spacecraft could last billions of years, these circular time capsules could one day be the only traces of human civilization.

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