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The real strength of an egg lies in its shape. A side on blow from a sharp object puts pressure across the thin shell and easily breaks it. But squeezing directs pressure into the egg so that it compresses along, not across the shell.
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www.abc.net.au/science/surfingscientist/indestructible_...
www.abc.net.au/science/surfingscientist/indestructible_egg.htm
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The size of an egg is an inherited characteristic, and poultry breeders spend large amounts of time and effort to select strains for egg size. When a strength of the dome shape. The Shape of Things GRADE 7 Science Process--1.1,3;
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www.clover.okstate.edu/fourh/aitc/lessons/count.php?fol...
www.clover.okstate.edu/fourh/aitc/lessons/count.php?folder=intermed&file=shapeof.pdf
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This question seems like a tough one to crack, but scientists have one very sensible theory: the ovoid shape gives an egg its incredible strength! You can see this amazing power firsthand with a simple experiment.
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www.faqkids.com/idx/10/045/Food/article/Why_are_eggs_eg...
www.faqkids.com/idx/10/045/Food/article/Why_are_eggs_eggshaped.html
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STRENGTH OF EGG SHELLS ... The students will be able to discuss and describe verbally as well as in writing why the structural shape of an egg shell makes it stronger or weaker depending on how it is cut.
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www.classroom.pair.com/eggshells/instructions.phtml
www.classroom.pair.com/eggshells/instructions.phtml
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Aristotle once suggested that males came from more pointed eggs and females from more rounded eggs. This of course, is not true. The shape of an eggshell does affect its physical properties, however. The general spherical shape of an egg maximizes shell strength while also conserving shell materials.
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www.madsci.org/posts/archives/dec98/913431059.Zo.r.html
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Did it break? If you did this correctly the egg did not break. Why? Due to the shape of the egg and the strength of the shell weight is distributed evenly around the egg and you are squeezing around the full base of the egg.
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ezinearticles.com/?Science-Project-for-Kids-To-Show-Egg...
ezinearticles.com/?Science-Project-for-Kids-To-Show-Egg-Strength&id=921527
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How the trick works: The curved shape of egg shells passes the weight of the books down and over the entire shell. This makes the egg shells able to support more weight. ... ; Super Strength Eggs...
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www.goldeneggs.com.au/childrens_activities/tricks/super...
www.goldeneggs.com.au/childrens_activities/tricks/super.html
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Having said this, there are a variety of ways to approximate the shape of a hen's egg by modifying the equation of an ellipsoid, x2/a2 + y2/b2 + z2 ... Why is a hen's, or other bird's, egg shaped as it is? Because it gives strength even though the eggshell is thin enough to allow the young bird to peck its way out when ready.
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www.daviddarling.info/encyclopedia/E/egg.html
www.daviddarling.info/encyclopedia/E/egg.html
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Definite ridges - Pronounced ridges affect the shape of the egg shell. They decrease shell strength and detract from the cartoned eggs' appearance. (Grade B);
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web2.uconn.edu/poultry/4-H%20Poultry/eggshells.html
web2.uconn.edu/poultry/4-H%20Poultry/eggshells.html
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