41. In the history of science, this is considered to be the first occurrence of a controlled experiment . 42. Aristotle failed to see the value of controlled experiment , believing that nature could only be understood whole. 43. There are many ways to fake it or to think it is observed in poorly controlled experiments . 44. You have to have a controlled experiment and all the conditions have to be exactly the same. 45. Remotely controlled experiments have become a widespread tool for teaching physics at the university level of education. 46. :: The terms " dependent variable " and " independent variable " are used for controlled experiments . 47. I have deliberately left ` A Controlled Experiment ', the most different of the stories, to the end. 48. Controlled experiments can be performed when it is difficult to exactly control all the conditions in an experiment.49. It is at best difficult and expensive to conduct controlled experiments on smoking status in the general population. 50. A controlled experiment was in order.
