An electronic stopwatch gives a higher accuracy than a mechanical stop watch.
There is no essential difference between the meanings of the phrases "essential to safety" and "essential for safety."
The difference between an electronic organ and an electronic piano is in the sounds produced. Sometimes, on the higher end models, the electronic piano will have a piano touch, weighted keyboard.
The essential difference between a biological microscope and a metallurgical microscope lies in their intended use and design. A biological microscope is designed for viewing biological specimens such as cells and tissues at high magnification, typically using transmitted light. In contrast, a metallurgical microscope is designed for inspecting opaque materials like metals, ceramics, and plastics, usually utilizing both reflected and transmitted light to examine the internal structures of these materials.
light is must for optical microscope while is not necessary for nonn optical one
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The difference is to get off your bum and look for the answer in your textbook or notebook
A manual database is MANUAL and an electronic is electronic LOL! Simple :P
WHO ARE NON-ESSENTIAL WORKERS
microscopes are much more powerful
the name
A stereo microscope shows two slides side by side at the same time and is used for comparison. A compound microscope only shows one slide.