Assertion: simple microscope | /r/HasProperty | magnifying glass
Facets:
value: essentially
type: MANNER
Source sentences:
text: Magnifying between 200 and 300 times, it was essentially a magnifying glass.
text: Although objects resembling lenses date back 4000 years and there are Greek accounts of the optical properties of water-filled spheres (5th century BC) followed by many centuries of writings on optics, the earliest known use of simple microscopes (magnifying glasses) dates back to the widespread use of lenses in eyeglasses in the 13th century.
text: A simple microscope is also called a magnifying glass because of its convex lens of small focal length.