The term phantom of the north refers to the fact that great gray owls, like other owls, are silent in flight. In contrast on a quiet winter day I can hear the wing beats of a Raven as it flies bye me.Owl feathers are different and have built in sound damping features.reat gray owls are often easier to spot in the trees in winter and spring time. It is estimated their are about 10,000 to 50,000 great gray owls in North America, but no one knows for sure how many birds there are. The greatest threat to the owl is deforestation.
The definition of an adiabatic process is that heat transfer to the system is zero, . Then, according to the first law of thermodynamics, where is the change in the internal energy of the system and is work done by the system.he adiabatic flame temperature is the temperature that would be achieved by a flame if the process of combustion took place in the absence of heat loss to the surroundings.
If oxygen does not get to the muscles fast enough for aerobic respiration, the muscles change to anaerobic respiration by processing only the first stage of glucose breakdown and making lactic acid instead. Glucose (sugar) only = carbon dioxide + lactic acid + some energy.In anaerobic respiration only the first stage of sugar breakdown occurs. Lactic acid builds up in the muscles and stops them working. The person breathes faster to take in more oxygen so that lactic acid can be broken down to carbon dioxide and water.his is called anaerobic respiration. Oxygen is needed to full break down the glucose and release all the energy stored in it. In anaerobic respiration glucose cannot be fully broken down and only a small amount of energy is released. Lactic acid stops muscle from working if it builds up.