It has small ears to reduce its surface area to volume ratio.
Mostly, because the area to volume ratio is large.
In more scientific terms, larger objects have a lower surface area to volume ratio and thus retain heat better.
These porous materials all have an extremely high surface area to volume ratio.
The surface area to volume ratio of an object is the relationship between two measurements.
Nucleation points are anything that have a high surface to volume ratio.
For similar reasons, surface to volume ratio places a maximum limit on the size of a cell.
The energy transfer in your experiment is related to the surface area to volume ratio.
I am wondering if surface area to volume ratios may have an influence here.
The major problem of micro-combustion is the high surface to volume ratio.