You could take to a lab or a vet they have these special machines that can tell if its fertile or not
Use nothing
Cracking is correct, as in cracking an egg.
what the is wrong with you get off this website
There is nothing different if you are talking about a live egg as there is a chick growing in side of it. a fertile egg is when the daddy rooster make the egg fertile
Physical
An egg that has not been fertilized by the rooster's sperm is called an infertile egg. a hen will lay infertile eggs without the assistance of a rooster. Commercial egg layers have never and will never know what a rooster looks like, but they will produce an infertile egg 6 days out of a 7 day week.
I guess you would candle it just like any other egg. You put the egg on a focused beam of light in a dark room and if the light won't go through and the egg doesn't light up, it's fertile.
I have had good luck holding the egg up to bright flashlight - if it is not fertile, the light will make the egg look transluscent. If it is fertile, the light will be blocked. Once you see it for yourself, you'll see that it's easy to do.
beating the egg, cracking the egg open, and whisking the egg.
The chances of finding a double yolk egg when cracking open an egg from a carton are about 1 in every 1000 eggs.
No. If the female attempted to hatch eggs without a male, the eggs won't be fertile, and the egg will just go rotten.
No, only if you want fertile eggs. The hens will lay without a rooster.