Google is celebrating a scientist whose work included a focus on understanding sand's interaction with its environment. Today marks the 162nd anniversary of the birth of Hertha Marks Ayrton, a famous British inventor and scientist. Hertha Marks Ayrton is well known for her work on the origin of sand ripples. She explored how and why ripples form in the sand, what the relationship between sand and water is, why the ripples can take on a kind of uniformity, and how long ripples stay in a semi-permanent state. Hertha read her paper, The Origin and Growth of Ripple Marks before the Royal Society in 1904; becoming the first woman to present her work herself before the Society. Two years later she was awarded the Hughes Medal for her work on both the electrical arc and sand ripples.