Remove unwanted characters from your cells. 1  Expand the Remove unwanted characters section by clicking on the arrows next to the second tab on the Cell Cleaner pane in Excel.2  To remove characters select the range with the cells that contain values you want to delete. 3  Choose the option that suits your task. Expand the Remove unwanted characters section by clicking on the arrows next to the second tab on the Cell Cleaner pane in Excel. 2  To remove characters select the range with the cells that contain values you want to delete. 3  Choose the option that suits your task. 4  You can select one of these five options:
The Heisenberg uncertainty principle states that it's impossible to simultaneously know the position and the momentum of a particle. In other words, if you know exactly where a particle is, you won't know how fast it's going. If you know how fast it's going, you won't be able to tell where it is.
(Ä§ is the reduced Planck constant, h / 2Ï). Historically, the uncertainty principle has been confused with a somewhat similar effect in physics, called the observer effect, which notes that measurements of certain systems cannot be made without affecting the systems.