Recently, I came across an interesting piece of history: During the Victorian Age, people were fascinated with nature, excursions, and technology. Microscopes were becoming accessible to the rising middle classes of England, and one man, John Quekett, was fascinated by both microscopes and phytoplankton. He wrote a book called Practical Treastise on the Use of the Microscope, which was a hit among the Victorians, and they began discovering a hidden world of tiny creatures known as plankton and diatoms.
Plankton is what makes the ocean waters green, or aqua-blue – the differences are not only the sand or rock colour of a particular region, but also the density of microscopic life in the water. The denser the population, the lower the visibility. A teaspoon of seawater can contain a million living creatures. Regardless of their size, they underpin the marine foodchain, and indeed, all life on earth: Diatoms, which is the most common type of plankton, number in the trillions (there are over 100,000 known species to date), produce more than 20% of all oxygen on earth, and contribute nearly half of the organic life in the oceans. The shells of dead diatoms can cover the ocean bed as deep as half a mile in places, and they fertilize the Amazon basin to a tune of 27 million tons annually.
The Victorians knew very little of all that; they were at the dawn of discovery, and modern sciences owe a lot to those early intrepid explorers – women and men who braved the weather, cliffs and oceans in (heavy skirts and) leather shoes to discover, explore, and appreciate nature. Not only did they discover it, but they began making beautiful arrangements from the various shapes – they would display their microscopic artwork to friends, much like we might look through someone’s holiday photos today. These were known as Rosette Slides, and there is still one famous artist keeping this art form alive today: Klaus Kemp, known as the Diatomist. Here are just a few of his masterpieces; to see more, just google his name. The two links in this article will take you to two short videos on the topic. Enjoy!