Miracles are not magic. They are acts of God. So, let's not wonder as we do when we see a magic trick, but understand that God who created everything, manages it all and can use His creation and all the laws that accompany it, to accomplish anything He desires.
For years scientists, current and old, have researched the ways of God. Numerous research has gone into the Great Flood of Noah's time. Some try to prove it happened, some try to disprove it. No one tries to research why it happened, to achieve what, they only research the how.
The wondrous thing is the creation itself and how it becomes a tool to achieve Gods wishes. Take the miracles that God did to release the Jews from Egypt. The plagues, the angel of death, the parting of the Red sea etc. The wonderous thing is not how it was done but why... why God did it, which was to fulfil His purpose. The purpose was the objective and not the Miracle itself.
As to how God uses His creation to do miracles, here is a link to the scientific explanation of how the miracles in Egypt were done, ensuring the Jews were allowed to go.
