Invisibility Options

Greetings to all,
I am making this post to ask a very straightforward question. All my life i have been fascinated by this concept of invisibility; if it exists and if its possible. And so i ask, does anybody here know if can be done? Any thoughts on this topic will be most appreciated.

Thank you

I do agree about invisibility being mental, but the science experiment result called the Philadelphia Experiment creates doubts in my mind and open new possibilities.

Source. The alleged experiment was conducted by one Dr. Franklin Reno (or Rinehart) as a military application of Albert Einstein’s unified field theory, or “generalized theory of gravitation.” The theory, briefly, postulates the interrelated nature of the forces that comprise electromagnetic radiation and gravity. Through a special application of the theory, it was thought to be possible, with specialized equipment and enough energy, to bend light around an object, rendering it essentially invisible.