Seawater resistance
Water generators convert the potential energy of water into mechanical or electrical energy. The goal is to make water power usable. This is generally accomplished with dams, turbines in running water, and tidal power plants in seas and oceans. Energy conversion on the oceans and igus’s xiros plastic ball bearings: What do they have to […]
The most environmentally friendly way to dive is to use flippers. But if you find that too taxing and prefer a certain level of convenience, you can use a pedal-powered submersible. The French adventurer Stephane Rousson, who once crossed the English Channel with a pedal-powered airship, has developed one. “Scubs_x0002_ter“ is the name he gave […]
The term aquaristics describes the operation and maintenance of an aquarium. This includes all activities that are carried out both professionally and as a hobby. The basic difference between freshwater and seawater aquaristics is the saltwater content. For example, there are also so-called brackish-water aquariums that contain both freshwater and seawater. If you decide to […]
Harpoons are spears or javelins that are barbed to hunt fish or whales. The barbs are there to prevent the spear from slipping out of the hooked fish. Researchers found harpoon-shaped stone-age objects created by the most intricate carvings, which caused astonishment. Over the years, harpoons have evolved into large launching devices used specifically for […]