Shyamanta Borah

According to me, there are forces that do not fall in the visible spectrum of human eyes but can only be felt. Example - magnetism, magnetic field, electric field, current, voltage etc. There are many aspects of  matter which are invisible to the human eye and that I have already mentioned in my examples apart from magnetism. Such aspects can only be felt or measured using instruments. If we could see such aspects, probably we would have been much more ambitious than what we are today. But being a lot more ambitious also takes a toll on the ecology. Hence, we should know how to use such tech in order to ensure the sustainability of mankind.

The inability of water or glass to refract or reflect photons visible to the human eye makes it transparent. This is because rays visible to the human eyes are easily passed by water and glass, thereby making it transparent. Parts of the human body such as your palm or tip of your fingers might allow a certain amount of light to penetrate but not all thereby making it translucent rather than transparent. And even if it can be imagined, unlike water or glass, the human body is not uniformly distributed. Instead, it is very complex. This non-uniform distribution separates every part of the body differently and allows them to act differently, too. Hence, unlike the palm, legs cannot be penetrated by the visible light because if massive amount of mass present. However, if the luminous intensity is extremely high like that of the sun (provided the light doesn't burn), then in that case it might penetrate the human body to make it look transparent or invisible rather than translucent but that would depend on the source of light and the source has to be a 1000 times intense than the sources that we are used to.