1.   He who eats the nut must first crack the shell Jeremy Cherfas Walnuts come in hard and convoluted shells.

2.   Hold the egg in your hand and gently crack the shell with a knife.

3.   Blues has the power to crack the shell of the ordinary so that it becomes surreal.

4.   Again using the screwdriver and hatchet, hold the coconut securely and tap along one edge of the nut to crack the shell.

5.   But alas, even Santa has trouble cracking the shell.

6.   But the recipe for eggs pickled with tea and star anise omits an instruction to crack the shells, though it does describe how marbleizing occurs at the cracks.

7.   Crack lobster shells and remove meat.

8.   Drain the hot water from the pan, and shake the pan to crack the shells of the eggs on all sides.

9.   Drain the water, and put the eggs back in the pot, shaking them against the sides to crack the shells.

10.   Finally, on the fifth blow, he cracks the shell with a sickening crunch.