The Babington Assassination Plot and Internet Security
The Babington Plot is a conspiracy to rescue Mary, Queen of Scots, from the clutches of Queen Elizabeth the 1st, and place Mary on the throne of England. (Somewhere along the way, Elizabeth is to be murdered.) The conspiracy is complex, but a Catholic priest arranges for Sir Anthony Babington and Queen Mary to correspond using coded messages hidden in the hollowed out cork of a beer barrel. Queen Elizabeth's spymaster gets one of his spies to act as a man-in-the-middle, passing the messages along, but decodes and reads the messages first. Mary has been held a prisoner by Queen Elizabeth since 1568. It's been 18 years, and Mary thinks being the next Queen of England is a swell idea. Mary's letter will be the end of her but before that happens, Babington and his co-conspirators are caught, tried, hung but not killed, dragged through the streets on a frame for two miles and then carefully disemboweled while alive. Queen Elizabeth finds this to be too cruel so after Babington and the priest go through this gruesome process, the remaining co-conspirators are hung until dead. Queen Mary gets her turn early next year.  
Before Galileo: The Falling Bodies Experiment *
You'd think that the heavier the object, the faster it would fall and Aristotle would agree with you, but you'd both be wrong. Three years before Galileo performs the famous experiment of dropping heavy objects from the top of the leaning tower of Pisa, Simon Stevin and his friend, Jan, walk to the top of a church tower in the town of Delft in south Holland. They drop two lead balls, one being ten times heavier than the other, and listen for them to hit the ground. As best they can tell, there is no difference. They hit at exactly the same time. Galileo will outline a similar experiment three years later but it will not be known if he will actually drop anything from the Tower of Pisa. He simply offers it as a thought experiment. What he actually does is to measure the rolling of metal balls down an incline using a water clock which is the most consistent way to measure time in such short increments (in those days).  
You Shall Not Pass: Horatius at the Bridge
The last and greatest of the Dutch engravers of the Baroque period has produced an heroic engraving: "Horatius at the Bridge." It is truly amazing. Horatius the One-eyed is Captain of the Gate of ancient Rome as the enemy horde approaches. Rome's only chance is to chop down the wooden bridge before the enemy can cross it but they've run out of time so Horatius volunteers to hold off the horde at the bottleneck while the Romans, drop the bridge behind him. He says he can do it with two more men at his side. And so he does. The bridge falls, he leaps into the river and escapes. The attack turns into a siege and the Romans are able to work out a treaty.   
This Year on Wikipedia
Year 1586, Wikipedia.
- * The asterisk in the section header indicates that it was read on the podcast.
- Anthony BABINGTON. tudorplace.com.ar (2013). Retrieved on 1 June 2015. “Babington acted like a jealous child, and became more and more angered as Mary granted favours to others. From Paris, Morgan informed Mary of Babington's state of mind and that it would be wise to send him some token of gratitude, which she did in a note of 28 Jun. Babington replied in a long and provocative letter describing all the means to be taken for the murder of Elizabeth and the deliverance of Mary. Five days later, Mary returned his letter, favourably replying to the news of the plot, and seeking to know more.”
- hurdles - definition of hurdles. The Free Dictionary (2015). Retrieved on 1 June 2015. “4. Chiefly British A frame or sledge on which condemned persons were dragged to execution.”
- Anthony Weiner - Wikipedia (2015). Retrieved on 1 June 2015. “Weiner resigned from Congress in June 2011, due to a sexting scandal.”
- Ralph Waldo Emerson quotes. thinkexist.com (2015). Retrieved on 31 May 2015. “&lquot;When you strike at a king, you must kill him&rquot;”
- Galileo Galilei: The Falling Bodies Experiment (June 2013). Retrieved on 1 June 2015. “The most notorious of those is Simon Stevin that in 1586 (3 years before Galileo) reported that different weights fell a given distance in the same time. His experiments, with the help of his friend Jan Cornetts de Groot, were conducted using two lead balls, one being ten times the weight of the other, which he dropped thirty feet from the church tower in Delft.”
- Simon Stevin - Wikipedia (2015). Retrieved on 1 June 2015.
- Hendrik Goltzius - Wikipedia (2015). Retrieved on 1 June 2015. “According to A. Hyatt Mayor, Goltzius 'was the last professional engraver who drew with the authority of a good painter and the last who invented many pictures for others to copy'.”
- File:Horatius Cocles.jpg - Wikipedia (2015). Retrieved on 1 June 2015.
- Horatius Cocles. Livius.org (2014). Retrieved on 1 June 2015. “quoting from Livy, History of Rome from its foundation 2.10; translated by Rev. Canon Roberts: The enemy would have forced their way over the Sublician bridge had it not been for one man, Horatius Cocles. The good fortune of Rome provided him as her bulwark on that memorable day.”
- Babington, Thomas. Horatius at the Bridge by Thomas Babington, Lord Macaulay (1800-1859). Bartleby.com. 2014 [last update] Quoted in The World's Best Poetry: Vol. VII. Bliss Carman, et al., eds. 1904.