Dear Visitors we would like to introduce you our laser curvature experiments. We are looking for the curvature on the surface of the lake Balaton in Hungary with special laser technology to detect the supposed curvature on the water surface. How much is the curvature of earth on the distance of 77kms? (47.8 miles) 465 meters! (1526 feet) that means that an object this tall in one side of the lake must not be seen from the other side. Online curvature calculator: https://dizzib.github.io/ear