The first thing is that when the ship is travelling it will leave a wake behind it. Also I believe that the wake will disturb the organisms in the ocean that emit light. Getting a satellite to find the wake wouldn't be too hard.
Also a moving ship will have a thermal signature from the exhausting of heat/smoke through the smoke stack. Again visible on satellites. But could be reduced by cooling the exhaust.
To make the ship invisible visually there's always the old dazzle paint jobs from WWII (look at an old photo of a warship from that era) that works by disrupting the visual signature of the ship.
I believe that also the lastest method is to "fog" the air around the ship by spraying seawater into a fine mist.
So that's how you quit vi!
And all this time I thought the reset button was the only way!
The first thing is that when the ship is travelling it will leave a wake behind it. Also I believe that the wake will disturb the organisms in the ocean that emit light. Getting a satellite to find the wake wouldn't be too hard.
Also a moving ship will have a thermal signature from the exhausting of heat/smoke through the smoke stack. Again visible on satellites. But could be reduced by cooling the exhaust.
To make the ship invisible visually there's always the old dazzle paint jobs from WWII (look at an old photo of a warship from that era) that works by disrupting the visual signature of the ship.
I believe that also the lastest method is to "fog" the air around the ship by spraying seawater into a fine mist.
Any other ideas?