True or False?

Robert Hooke unknowingly discovered plant cells. In 1665, he used a compound microscope to examine a wide variety of objects. On observing the surface of a cork, he noted down 'pores', which were in fact plant cells!

Everyone has a shadow and everyone`s shadow looks different. Even your own is not the same because it dislays a different image at each time of day, depending on the angle at which the light falls upon you. Have you ever been caught off guard by your own shadow?

The first four-way traffic signal that resembles what we use today was installed in Cleveland, Ohio on August 5,1914. It only had red and green lights and was operated by a police officer. There had been other attempts to control traffic, but the signal in Cleveland was the first-ever successful traffic light.