Another interesting detail: when the earth is finally dry, Noah removes the covering of his boat, right? Given the boat's dimensions, this would mean some sort of tarpaulin of 3174 m2. Even if we would make a paper cover (the usual 70g/m2 paper from your printer would do nicely) that size, it would still weigh 222 kg (not counting sellotape or staples). And yet ol' Noah removed it on his own. And don't forget the material should still be sturdy enough to keep out all that rain. I'm sure many production companies would be very keen to get their hands on this amazing material.
And how about this: the additional water acquired in 40 days (almost 40 degrees of the earth's solar orbit, in other words) would increase the mass of the earth by about 6.7%. That doesn't sound so much, but it is still significant enough to slow down the planet in its orbit, alter its axial rotation (possibly its axial tilt as well), pull it closer to the sun and perceptibly change the path of its orbit, with all kinds of interesting & disastrous results.
Furthermore, it has been calculated by people who actually know how to build a boat that a wooden construction of these dimensions would never work as a ship: it would either sink immediately or break in half, then sink. But since Noah would need a BIG boat for all those animals to fit in, Ken Ham's ridiculous Ark Encounter replica found a solution to vastly reduce the number of animals: Noah only had to take two of every "kind". It's not exactly clear what a "kind" is - it's certainly no scientifically approved terminology - but it would mean a mere 34.000 kinds. (Don't ask me how these ever evolved into 8 million species in a mere 4000 years. Divine magic.) As these would quite obviously *still* not fit in, Ham's ark just shows a couple of animals (statues, not even animatronic) and for the remaining 33.980 or so animals relies on a continuous background recording of animal sounds. Mindbogglingly pathetic by any standard except a creationist's.
If you can think of any more fun or interesting problems poor Noah would encounter on his great ark adventure, let me know in the comments!
[This blog was updated June 2017]