Lisa Wilkinson

But they didn't go all the way up to the top.

And that was what guaranteed that once that water came in...

It eventually, because the water was rushing in at such extraordinary speed and volume, that once that first boiler room filled, the water would go over the top and then it would fill the second boiler room.

And so that was the reason why they never had a chance because as it continued to flow over and over and over, that guaranteed the tilt of the ship completely.

going down and down and down.

Well, Thomas Andrews, who was the second Titanic designer, the reason Alexander Carlyle chose

resigned was because of a fight he was having with J Bruce Ismay over the number of lifeboats.

J Bruce Ismay only wanted 20, which allowed spots for 1,176 souls.

So Alexander Carlyle resigns

Thomas Andrews takes over.

Thomas Andrews has his own fight going on with J. Bruce Ismay over this term unsinkable ship.

He's been telling him there is no such beast.

It doesn't exist.

Mother Nature, when she decides, will always win.

And so Thomas Andrews and Captain Smith

in the half hour after they hit the iceberg, takes Captain Smith aside and basically says, I'm going to tell you for the very last time, look at this layout, look where we've hit, look at these bulkheads.

We've got an hour to an hour and a half.

Was there panic right away on board?

Not initially because everyone thinks they're on an unsinkable ship and Captain Smith doesn't want panic.

He doesn't want chaos up on the boat deck.