#680 How does insulation in the home work?
How does insulation in the home work? By slowing down the movement of heat energy out of the house or into the […]
#679 Who invented the slide rule?
Who invented the slide rule? Willian Oughtred in 1622. I think, first, I need to look at what a slide rule is […]
#678 What is the Fermi paradox?
What is the Fermi paradox? It is the fact that if life in the universe is so common, we should have found […]
#677 Why did the USSR collapse?
Why did the USSR collapse? There are a myriad of reasons. Not one of them is exclusive and it could be said […]
#676 What are moles, freckles, and birthmarks?
What are moles, freckles, and birthmarks? Moles are caused when pigment-producing cells grow in a group. Freckles are caused when your skin […]
#675 Why did some dinosaurs have such long necks?
Why did some dinosaurs have such long necks? To reach the higher up vegetation, to get more low-lying vegetation, to expend less […]
#674 Are ants smart?
Are ants smart? They are not smart in the way that we are, but they have been observed using tools and performing […]
#673 When did silent movies end?
When did silent movies end? The last silent movie was The Poor Millionaire, released in 1930. The expression “silent movie” didn’t exist […]
#672 How many Egyptian dynasties were there?
How many Egyptian dynasties were there? Depending on how you view it, there were 31, 33, or 34. Egypt was conquered by […]
#671 Why do people pass out from pain?
Why do people pass out from pain? Sudden pain can make the heart rate decrease, which lowers blood pressure, which can cause […]