Well, today we say goodbye to Daylight Savings time. I hope you all enjoyed your extra hour of sleep. Before the middle of the 19th Century, keeping time was more of an art than a science. Time pieces and clocks were available, even common in certain circles but they were notoriously inaccurate. However, the act …
Continue reading “Ben Franklin DID NOT Invent Daylight Savings Time!”
If you hang around Fort Mifflin very long you will, no doubt, be regaled with stories of the supernatural and the pseudoscience that supports its existence. These are all good fun but let’s be clear, SOME people actually believe these things and even though the scientifically minded dismiss THESE beliefs, they are quick to then …
“A good musket is a complicated engine and difficult to make — difficult of execution because the conformation of most of its parts correspond with no regular geometrical figure.” – Eli Whitney We all know Eli Whitney for his invention of the Cotton Gin but it was his contribution to industrial engineering and the manufacture …
Continue reading “Supplying the Army with Muskets – The birth of Mass Production in America”
Sometimes the most interesting things are the things you learn by accident. So, I did my normal Spymaster program at Princeton on September 12, 2021 and in this program, I demonstrate invisible inks. My invisible ink (for cost and safety constraints) is a Na2HCO3 (baking soda) and turmeric reaction. Unfortunately, when the people who graciously …
Whiskey’s origin lies somewhere between 1,000 and 1,200 AD when traveling monks migrating across Europe, introduced the distillation practice into Scotland and Ireland. Because of the lack of vineyards in these countries, the monasteries turned to fermenting grain mashes and then distilling them into whiskey. For the next 400 years, whiskey spread throughout the Celtic countries. …
This year, I am adding a somewhat archaic bit of brewing equipment to the gear brought out by the Regimental Brewmiester. The yeast ring or gjarkrans is a piece of traditional brewing gear from medieval Sweden and Denmark. This tool resembles a complicated wreath of small pieces of whittled wood. Yeast harvested from one batch …
The era of the steamboat began in America in 1787 when John Fitch made the first successful trial of a forty-five-foot steamboat on the Delaware River on August 22, 1787, in the presence of members of the Constitutional Convention. Fitch later built a larger vessel that carried passengers and freight between Philadelphia and Burlington, New Jersey. …
Continue reading “The First Steamboat Sailed on the Delaware”
Much of what you read about celestial navigation is focused on ocean navigation where you have a reasonably unrestricted line of sight to the horizon. Terrestial navigators and surveyors often do not have this and must make adjustments in their technique. One very common approach is to use an ARTIFICIAL HORIZON. An “artificial horizon” is …
In Leeds Joseph Priestley’s home was situated near a brewery. Whenever he walked by the brewery, Priestley observed an unusual phenomenon. He noticed that “fixed air” (carbon dioxide) was released in the process of fermentation and that this new “air” would extinguish burning pieces of wood and then drift to the ground. At home Priestley …
In the mid-18th century, the most pressing issue in chemistry and physics was to determine what exactly happens when something burns. The prevailing theory was that flammable materials contained a substance called “phlogiston” (from the Greek word for burn) that was released during combustion. The theory held that when a candle burned, for example, phlogiston …
Continue reading “Phlogiston and Fire — The Isolation of Oxygen”
Michael Carver -- Historical Interpreter/Reenactor 