/sci/ - Science & Math

Why is it that, when I sit on my bed while a hand (palm) is in front of my face and eyes, while being able to close one eye,
seeing the hand one way, with the other one (eye) being open, ditto, for a different direction with the opposite eye [referring to the hand's location from both angles],
but, as I stare at an object strapped on the ceiling I.E. a clock (with both eyes open might I add, for this 'experiment'), I not only see ‘two’ hands; one that’s solid and one
that’s transparent - overlapping, but, slowly, as I turn my ‘attention’ or focus towards the ‘object’ on the ceiling,
‘both hands’ [so, both angles - or the illusion of there being two hands] begin overlapping one another, becoming one, while also doing two things; those being, either I see a
single transparent hand and the clock through it, or my hand only, overlapping the clock [being ''solid'']?
Why does any of this happen?

The picture related isn’t the exact placement, but an ‘interpretation’, as, in reality, the finger tip/ ‘s would actually lay beneath the clock.