Jacob Burckhardt's interpretation of the renaissance was a prototype of the modern world. Scholars think he overlooked the continuity between the middle ages and the renaissance. Also other renaissances had revived ancient things like Greek science, the Latin language, and a liking of the worth and creativity of individuals. To fifteenth-sixteenth century Italy the term meant a time of growth.
A kelp forest off of the coast of Anacapa Island, California. Giant kelp uses gas filled floats to keep the plant suspended, allowing the kelp blades near the ocean surface to capture light for photosynthesis.
The giant kelp forests that grow off the coasts of Australia and California are made up mostly of a type of kelp called Macrocystis pyrifera. Macrocystis can grow up to 100 feet (30 meters) long, and growth of several inches (centimeters) every day is not uncommon.