View attachment 34693
‘FRee-hanging comb’ has been questioned.
This is a free-hanging brood comb in a 11x18 frame with no bottom bar. - built naturally by the bees from a starter strip attached to the top bar. Typically attached by the bees to the side bars only part of the depth, leaving the bottom part free-hanging . This frame is from a first year brood nest - not yet extended full depth.
A broodnest is kept at 35 deg C however much external temperature varies. So there is continual heat loss, using honey as the energy source. . In nature bees devlop a sherical brood nest which minimises surface area for a given volume. What I am interested in exploring is how much that affects the total stores left over to be laid up for winter.
a phyisist could do that by calculation - wattage lost by temperature difference between the surface area of the brood nest and the surroiundings - but there are also convection losses, so complicated. If it is significant, hives for such frames would produce more honey for the beekeeper.
The ‘einraumbeute’ (single space box) developed by the Mellifera Association in Germany, called the Golden Hive as the frame dimension follow the golden ratio that occurs naturally in nature, is fully described in the book ‘Keeping Bees simply and respectfully’ which assiciation librarians could be asked to buy.
Mellifera’s aim when developing a new hive was however to get ready for the small hive beetle which is almost certain to invade Europe - and UK - at some time.