Propolis while also collecting water and tree resin necessary for the production of propolis. The chemical composition and nature of propolis depend on environmental conditions and harvested resources. For centuries, beekeepers assumed that bees sealed the beehive with propolis to protect the colony from the elements, such as rain and cold winter drafts. However, 20th century research revealed that bees not only survive, but also thrive, with increased ventilation during the winter months throughout most temperate regions of the world. Propolis properties may include: The composition of propolis varies from hive to hive, from district to district, and from season to
Speed glue Butterfly's Bryce FX, Joola's Samba, will absorb the glue more readily and therefore have a bigger dome when they expand, leading to a greater effect, with harder sponges e.g. most Chinese rubbers, Butterfly's Bryce Hard, expanding less leading to a slightly lesser effect. In gameplay terms, speed glue has some disadvantages. Due to the increased sponge thickness, speed does increase, but as mentioned before usually control decreases as speed increases. Also, after several regluings speed glue begins to build up on the racket, increasing the weight of the paddle. The nature of table tennis blades are so sensitive, that a