Unsure about a part of quantum physics

[247a]

hi i resently read about Schrödinger's experiment called the Schrödinger's cat experiment which states that things don't exist if not mesured and then exist when they are mesured so then that should mean we can minipulate space and time. As i get it, it would be like someone says there are three coins on the desk 1p, 2p and 5p. but if they have a tendency to whant to make thing sound better than they are, then you could think it is a 2p, 5p and a 10p if he/she sends you in the room and he don't look in and there is nothing mesuring them at all apart from your eyes then it should turn from 1p, 2p and 5p into 2p, 5p and a 10p.there for we could end world hunger and all be rich
only thing is that(the theory) dosn't match reality so there must be ether something I'm missing or the Schrödinger's cat experiment dosn't work and Schrödinger's theory is incorrect.
so please enlighten me as i really am stumped after thinking this.

 

[DrClaude]

Schrödinger came up with is thought experiment to show there was something absurd about the interpretation of quantum theory at the time.

A good read is Giancarlo Ghirardi's book
https://www.amazon.com/dp/069113037X/?tag=pfamazon01-20