The Archimedes screw is a device believed to have been invented by Archimedes in the 3rd century B.C. It was most often used to transport water from lower ground to higher ground for purposes of irrigation, flood prevention, and more. Interestingly, it is still used...
Solar energy is valuable for electricity generation and can help meet much of human energy needs. The public can build unique, light and fast models that contain solar panels and are powered by solar energy.
Nowadays, a number of wind turbines make up wind farms and are a renewable energy source. The electricity generated by wind turbines can be used to power homes. Visitors can experiment with a wind turbine, which will generate electricity capable of powering a...
Is there a limit to the height of the construction that someone can build using a 3D pen? Βeware! The construction must not fall. The competition of aspiring architects is predicted to be intense.
How much toothpaste would an elephant need to brush its teeth? Thanks to the chemical reaction between hydrogen peroxide, a potassium iodide solution and some liquid dish soap, we will create a huge amount of “toothpaste”, enough for an elepha