Leap Years and Leap Day
Once every 1461 days, sometimes, we have a day on the calendar that we don’t normally have. This extra day is a necessity if our calendars are kept in sync with the orbit of the Earth around the Sun,...
29 Helmi 202413min
What Were The First and Second Reichs? (Encore)
When Adolf Hitler came to power in 1933, he declared his new regime to be The Third Reich and that it would last 1,000 years. It turned out he was off by 988 years. The big question for many people o...
28 Helmi 202411min
Stealth Technology
The history of warfare has been a history of measures and countermeasures. When the airplane was invented, RADAR was later invented as a means of advanced detection of airplanes. RADAR then spurred ...
27 Helmi 202413min
Passports
Most people in the world are required to have a passport when they travel internationally. Today, there is an international regime covering how passports are to be issued and honored between countrie...
26 Helmi 202415min
Cruciferous Vegetables
One of the most common food items consumed today is cruciferous vegetables. Even if you aren’t familiar with the term, you almost certainly have consumed some before, and there is a good chance you do...
25 Helmi 202412min
The Tuskegee Airmen
During the Second World War, one of the most distinguished American aviation units was one that no one thought would even have existed when the war began. It was a unit of African American aviators w...
24 Helmi 202416min
The 13th Amendment (Encore)
The American Civil War wasn’t just a military conflict. There was also a major political and legal struggle that took place alongside the military campaigns. In the last months of the war, President ...
23 Helmi 202411min
Pearls
Centuries ago, the most expensive jewelry in the world wasn’t made of diamonds, rubies, or emeralds. Rather, they were made from an extremely rare substance that was occasionally found inside of moll...
22 Helmi 202412min
