Pics of : air tight, well insulated, glass, hive ?
Not sure what you are looking for here.
If the existence of theromocline layer was to be ..... discovered?/demonstrated, in honeybee hives , how might that change the design of your hives ?
A thermocline (sometimes metalimnion) is a thin but distinct layer in a large body of fluid (e.g. water, such as an ocean or lake, or air, such as an atmosphere) in which temperature changes more rapidly with depth than it does in the layers above or below.