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Physicist: The narrative that usually leads to this question is something like: “It was the Wright brother’s brilliant wing shape, among other design innovations, that first made manned flight possible”.
So if the wing shape is so important, why does it still work if it’s flipped upside-down?
For most “everyday” fires, the density of the gas in the flame will be about 1/4 the density of air.
So, since air (at sea level) weighs about 1.3 kg per cubic meter (1.3 grams per liter), fire weighs about 0.3 kg per cubic meter.
The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.
It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.
If you were on a planet with no air at all, fire would fall to the ground instead of rise because, like all matter, it’s pulled by gravity.
Also, it would be hard to keep the fire going (what with there being no air).
Eons are divided into eras, which are in turn divided into periods, epochs and ages.
The tables of geologic time spans, presented here, agree with the nomenclature, dates and standard color codes set forth by the International Commission on Stratigraphy (ICS).
The primary defined divisions of time are eons, in sequence the Hadean, the Archean, the Proterozoic and the Phanerozoic.
The following four timelines show the geologic time scale.
The first shows the entire time from the formation of the Earth to the present, but this gives little space for the most recent eon.
For a given pressure the ideal gas law says that the density of a gas is inversely proportional to temperature, in Kelvin.