The Pitch Drop Experiment

The Pitch Drop Experiment

In 1927, Professor Thomas Parnell of the University of Queensland in Brisbane, Australia created an experiment to demonstrate to his students the concept of viscosity and how some substances which appear to be solids are actually liquids. That experiment is still running 90 years later. Learn more about your ad choices. Visit megaphone.fm/adchoices

Episoder(2042)

The May Fourth Movement

The May Fourth Movement

Few dates in China are as significant as May Fourth, which marks two distinct revolutionary periods in modern Chinese history.   On May 4th, 1919, student protests erupted in China in response to the...

22 Jan 14min

The Year 2025

The Year 2025

525 days ago, I began looking at the state of the world every century, then every fifty years, and finally every twenty-five years as the pace of change accelerated.  After almost a year and a half, ...

21 Jan 15min

The Julio-Claudian Dynasty (Encore)

The Julio-Claudian Dynasty (Encore)

The Roman Empire was ruled by a single family for its first century. The family was actually a merger of two of the most distinguished clans in Roman history.  This family included some of the best a...

20 Jan 14min

The Great London Fire of 1666

The Great London Fire of 1666

From September 2 to September 5, 1666, one of the largest urban fires in history took place.  The Great Fire of London swept mercilessly through the city, reducing roughly 80% of its buildings to smo...

19 Jan 13min

The Grateful Dead

The Grateful Dead

One of the most popular music groups over the last half-century is also one of the most unlikely.  They were seldom played on the radio,  they almost never appeared on network television, and they on...

18 Jan 14min

The Tokyo Trials

The Tokyo Trials

Following the conclusion of World War II, decisions needed to be made about how to handle the defeated Axis Powers. Due to the vast scale of atrocities committed, it was not feasible to punish everyo...

17 Jan 15min

Insanely Ridiculously Absurdly Large Numbers

Insanely Ridiculously Absurdly Large Numbers

One of the first mathematical concepts that most of us grasp when we are children is that there is no such thing as the biggest number. No matter what number you pick, you can always add one to it.You...

16 Jan 16min

The House of Wisdom

The House of Wisdom

The Abbasid Caliphate stood as a vibrant center of commerce, technology, and learning from the 8th to the 13th centuries.  At the heart of this Islamic dynasty was the House of Wisdom. It was an ext...

15 Jan 15min

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