Can someone explain why A is wrong and how D is correct?
Higlobaldesi ,
Persistence of vision, the condition when your eyes bridge the gaps of darkness between flashes of light, explains the seeming magic produced by the stroboscope, an instrument that appears to freeze the swiftest motions while they are still going on.
'Persistence of vision' means 'the continued or prolonged existence of vision', and it is not a condition but a phenomenon.
a) the condition when your eyes bridge - When is
...
Higlobaldesi ,
Persistence of vision, the condition when your eyes bridge the gaps of darkness between flashes of light, explains the seeming magic produced by the stroboscope, an instrument that appears to freeze the swiftest motions while they are still going on.
'Persistence of vision' means 'the continued or prolonged existence of vision', and it is not a condition but a phenomenon.
a) the condition when your eyes bridge - When is
...
