waer to wine and the loaves and fishes clearly violate conservation of mass theories, unless you want to specifically hypothesise that Christ was a conduit for a truly massive amount of energy at the time, in the order of several hydrogen bombs worth... which seems like it raises more issues than it explains.
Walking on water, violates surface tension and Archimedian displacement co-efficients
healing the sick by laying of hands doesn't cporrespond to any KNOWN physical principles...
or am I missing the point?
First of all, if any of these miracles were to happen today, they would be easily recorded. It would be easy to confirm that when a particular person laid hands on a believer that they had a higher chance than average of being healed, or that the barrel of water over there is now wine even though nobody touched it. In each of these cases, Jesus is demonstrating his divinity to the masses, and the miracle is, by necessity a violation of the laws of physics (or it wouldn't be very convincing).
Of course, none of these are observed today. So either Jesus enacted miracles which are not currently repeated, or the second and third-hand sources mis-reported the details (how many DID Jesus feed?). But the fact remains that in each of these cases, changing the way the universe works is central to the miracle.
In a global flood, changing the speed of light is not only unrelated to the flooding, but it requires the concurrent tweaking of the alpha constant, the nuclear forces -- even the mass of a neutron (or life would not exist on Earth). Instead of simply dumping a lot of water on the Earth, you'd have to suggest that God put water on the Earth, then laid sedement with progressively more complex organisms (in a pattern that curiously follows local evolutionary patterns as is evidenced by both morphology and genetics with ERVs). God must have decided not to allow the sedement to settle by itself, but to poof into existance extensive layers laid by marshes and forests on top of forests...
I won't go on, but the evidence against a global flood is much more than this pitiful summary! The claim is not simply that God added some water to the Earth in a physics-violating miracle, but that the entire universe was changed -- every constant and magnitude -- in order for the flood to produce all the effects that we now observe.
I guess I haven't been very clear in specifying where I deny that miracles violate physical laws. I do believe that they have and that they do on occasion. However, when I hear a young-earth creationist answer every evidence with, "what if God did THIS?" all I see is somebody using an absense of evidence to mentally support their position rather than looking at what we CAN know about the universe to inform their understanding of God's methods. Please forgive my apparent shifting of goalposts. My understanding of my beliefs have not changed here -- I have always believed that God can and has violated the laws of physics -- yet there is and has been no systematic violation of the rules God designed for the universe. I'm preparing a talk on femtosecond laser filamentation so I'm VERY busy and distracted these days, and the contradictions that you've noticed are me talking about different scales (violating EVERY law of physics simultaneously for no apparent reason vs. a demonstration of deity through feeding thousands). I'll try to shut up and not respond to threads like this in the future if I don't have the time to carefully qualify my statements.