Spiral staircases are common in both historical architecture and modern homes. You’ll find them in lighthouses, castle towers, bell towers, and even in the living rooms of contemporary houses. But…
What kind of water is used to pour ice for competitions? How thick is it? How is it removed afterwards? Many such questions may arise when watching elegant figure skating…
You may have noticed that some pressure gauges are liquid-filled. These measuring devices are often installed in industrial equipment, hydraulic and other systems. What is that liquid inside and what…
It is believed that horses were first domesticated in around 3500 BC. They quickly became an absolute necessity for human civilization - for everything from agriculture to trade. And we…
A bucket is one of those tools that we would find in every house. Fire buckets are much rarer, but you can still see them in some garages, warehouses, streets…
We could hardly find a simpler tool in the arsenal of a modern carpenter. Plumb bob is just an axially symmetrical weight suspended from a string, but it helps establish…
Outhouses are not that common nowadays. Back in the day these humble buildings used to stand in every homestead. Many of them had some sort of a cutout in the…
If you ever travelled across the United States, especially the Midwest, you would find some round barns. That kind of style of country architecture is fairly rare nowadays, but that…
Some children think these are basketballs stuck in high voltage lines. Meanwhile other people guess that these are some sort of fuses. But what are these big spheres on overhead…
While travelling through the countryside of US or even many European countries, you might have noticed that a lot of old wooden barns are red. They look rather nice, but…
