Agar usually comes in three forms: powder, flakes, or a bar. All three work equally well; the real difference is ease of preparation. Powdered Agar is usually the easiest to use, as it can be substituted for gelatin in a 1:1 ratio (1 teaspoon gelatin is equivalent to 1 teaspoon Agar powder).se Agar as a substitute for egg whites. If you have a recipe that calls for egg whites but you are vegan, allergic to eggs, or simply don't like them, Agar is a suitable replacement. To replace one egg, mix 1 tablespoon Agar powder in 1 tablespoon of water.
Eons and Eras. The first principal subdivision is called the eon. An eon, the largest division of the geologic time scale, spans hundreds to thousands of millions of years. Geologists generally agree that there are two major eons: the Precambrian eon and the Phanerozoic eon. The Precambrian goes from the formation of the earth to the time when multicellular organisms first appeared - that's a really long time - from 4,500 million years ago to just about 543 million years ago.
We live our lives in three dimensions for our threescore and ten allotted years. Yet every branch of contemporary science, from statistics to cosmology, alludes to processes that operate on scales outside of human experience: the millisecond and the nanometer, the eon and the light-year. ( 1 geology) The longest time period used in geology. ( US, informal, hyperbolic) A long period of time.