Answer:
yes yes i have seen this before,let me guess its from go.ogle
from calculating how thick and strong the shell is i prefer using a egg with a born baby inside becasue it takes energy from divideing cells thus making it lighter and less likly to break and they can stand a weight of 130 pound weight without breaking thus 6 inches to 8 inches will be the answer
i prefer ostrich eggs and make sure to get younger birds they have harder eggs
thus you can keep doing it and 3 out of 10 egg shall break this is real math so ya
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