Small to medium enterprises (SMEs), nonprofit organizations, and high schools are invited to submit their solutions in six distinct categories: Health, Food, Energy, Water, Climate Action ...

However, whether any of this water was ever in liquid form while ... points to the presence of a shallow lake. Both sets of ripples are small — just 6 millimeters high and spaced 4 to 5 ...

A ripple tank allows you to study transverse waves in water. Ripple tanks vary a lot ... particularly when you are working with small measurements. Taking a photo is also a good way to make ...