The inventor of the parasol was inspired by the need for shade on a sunny day at the beach.The invention of radar revolutionized modern warfare by detecting enemy aircraft from a distance.Roller coasters have evolved over the years to include loops, corkscrews, and other thrilling elements.Squeeze bottles were created to easily dispense ketchup, mustard, and other condiments.The shape of a diamond is determined by its cut, color, clarity, and carat weight.