?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F3%2F&rft.title=Incubation+of+penguin+eggs&rft.creator=Edwards%2C+Carina&rft.creator=Ovenden%2C+Nick&rft.creator=Rottsch%C3%A4fer%2C+Vivi&rft.subject=None%2FOther&rft.description=The+preservation+of+rare+and+endangered+species+of+birds+requires+finding+efficient%2C+and+above+all+successful%2C+methods+of+breeding+them+in+captivity.+One+strategy+adopted+is+to+remove+eggs+from+the+mother%2C+making+her+lay+more+eggs%2C+and+then+incubating+the+removed+eggs+artificially.+Artificial+incubation+machines+must+attempt+to+replicate+the+conditions+of+natural+incubation+as+closely+as+possible.+Aside+from+careful+control+of+temperature+and+humidity+within+the+artificial+incubator%2C+an+important+factor+to+reproduce+is+that+eggs+must+be+turned+about+their+long+axis+from+time+to+time.+Hatching+will+not+occur+in+an+egg+that+is+not+subjected+to+some+form+of+occasional+rotation.+The+reason+why+eggs+are+turned+and+the+way+in+which+they+should+be+turned+are+still+not+well+understood.+The+Study+Group+attempted+to+gain+some+insight+into+why+eggs+have+to+be+turned+from+a+fluid+dynamic+perspective.+A+simple+egg-turning+model+for+an+egg+at+the+first+stages+of+incubation+was+constructed%2C+based+on+lubrication+theory.&rft.date=2003-04&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F3%2F1%2FPenguinEggs.pdf&rft.identifier=++Edwards%2C+Carina+and+Ovenden%2C+Nick+and+Rottsch%C3%A4fer%2C+Vivi++(2003)+Incubation+of+penguin+eggs.++%5BStudy+Group+Report%5D+++++&rft.relation=http%3A%2F%2Fwww.smithinst.ac.uk%2FProjects%2FESGI46-Zoo%2F