the double water bottle as invented by eduard penkara in croatia in 1903
1944
William E. Bell invented the two story house.
James lookthrough in 2888 bc
the year 1930 9 years before world war 2
the circulation from a lungs to the heart is called pulmonary circulation And the circulation from lungs to the body is called systematic circulation This two circulations is called double circulation
what is the different between single and double circulation
Single circulation and double circulation
William Harvey
well you see a single loop circulation only goes through the heart and body one at a time meanwhile a double loop circulation does it all at the same time ,,, suss
mammals have double circulation which means that during one circulation blood passes twice through the heart. It is necessary because double circulation is important in humans because it keeps oxygenated and deoxygenated blood separate and moreover it circulate blood to organs efficiently.
blood circulation was first reported by william harveyin man there is a comlpete separation of venous blood and arterial blood
William Harvey
Double dutch was invented in England by the Dutch.
Yes, but it is partial
advantage of double circulation is that impure & pure blood means de-oxygenated blood & oxygenated blood do not mix together during ciculation.
In double circulation there is complete segregation of oxygenated and deoxygenated blood. Because of this the blood passes twice through the heart in one cycle of circulation hence the name double circulation. This is necessary for optimum oxygen utilization as humans are warm blooded animals and need extra energy to maintain their body temperature