Gravity does not have the same value anywhere on earth. As we get closer to the core of the earth, gravity increases. As we move away from the core, gravity decreases, with its average being 9.807m/s2. Is a rocket launch easier at the poles of the earth or at the...
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
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.
The problem of the brachistochrone curve was posed by Johann Bernoulli in 1696. In physics and mathematics, a brachistochrone curve is the fastest possible path a ball can take when falling between two points. The public is required to find the shortest...
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.
