How boats stay stable depends on their size and centres of gravity.
Cruise Ships:
Modern cruise ships are quite tall rising more than a hundred feet into the air. At the same time, the ship only extends 25 feet below the water. Yet, these ships do not over and capsize. The reason is that cruise ships have a low center of gravity. This means that their center of gravity doesn’t move much as the boat moves.
Sailboats and other small boats:
By sitting down in a small boat, you lower the center of gravity and make it more stable. The keel helps to stop a boat moving from side to side or capsizing, because it means more force is required to push the boat sideways through the water.
Without the sense of vision, things don’t “look like” anything; there is just molecular structure “out there” in the environment.
What we experience as “colour” is just the brain’s way of making sense of the electromagnetic photons that collide with the photoreceptor array that is the retina in the human eye.
Most photons that arrive at the eye do not activate the photoreceptors (the parts of your eyes that sense light) at all. Many, such as x-ray frequency and radio frequency photons, pass right through the retina and even the whole body. Others, such as infrared and ultraviolet photons, get absorbed and turned into heat without triggering the photoreceptors.
So what is colour, anyway?
Colour is a way of identifying objects in the environment from their surface properties. It is something that the human visual system can detect that pertains mainly to the surface of the object due to the surface material.
There can be hundreds of specific visible electromagnetic frequencies reflected but the eye reduces them to only three bands: yellow, yellow-green, and blue. These three detected electromagnetic bands are converted by the retina into the “pure light” colours red, green, and blue; and then converted by the brain into a 3-dimensional color space that includes colors not found in the rainbow like pink.
So when we “see colour” what we are really doing is sensing aspects of the molecular composition of surfaces in the environment, but there is quite a bit of neural processing needed to convert detected visible light into what we perceive as surface colour.
We can actively “sense” reality. But ‘How does the brain combine all senses into a single reality?’ That is a challenging question that is very much an area of active research.
Right now, billions of neurons in your brain are working together to generate a conscious experience — and not just any conscious experience, your experience of the world around you and of yourself within it. We’re all hallucinating all the time; when we agree about our hallucinations, we call it “reality.”
The reality maintained by the brain is fragmented and always just a bit out of sync despite the brain’s ongoing efforts to keep it unified. The reason for this is that sensory information is arriving at different brain areas, and while the brain is “putting the pieces together” to figure out what is going on out in the world, the world is changing. As a result, the brain’s understanding of the world is constantly out of date and even inconsistent with itself.
Baleines dans Nausicaá 