why does fire or flames burn away into those jagged/spiky shapes?
In: Chemistry
You can watch youtube videos showing flame experiments on the ISS. The microgravity environment results in a small blue spherical flame around the burning item. Because there is no *gravitational “down” in that scenario, there is no density preference to create an air current from changes in density.
*The ISS is in orbit, not actual zero/microgravity. Due to its orbital speed the ISS is constantly falling. Due to its velocity “sideways” the amount it falls down is either equal to or greater than the amount that the surface moves away due to the curvature of the earth. The earth’s gravitational pull at the altitude of the ISS is about 90% of what it is at the surface.
[https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-microgravity-58.html](https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-microgravity-58.html)
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