Objective To evaluate the value of 18 F-deoxyglucose (FDG) positron emission tomography (PET) in detecting the primary focus of metastatic cancer with an unknown primary.
But then when photography came, it sort of relaxed that requirement, but there were still some things you had to draw, because photography wasn't all that sensitive to light.
Specifically, some paranormal investigators think Maria had an ability called Thottography, The theory says that some people can create images using only the power of their minds.
Sentence 43 Even those artists who were most dependent on photography became reluctant to admit that they made use of it, in case this compromised their professional standing
So it really started sort of 1870s and really began to take a hold of people's interest to the point in which in 1896 was when the first moving picture was screened to an audience in Paris.