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The fountain may have been Heron's way of studying or demonstrating the phenomena involved in this machine. In any case, that is what it is used for today.

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11y ago

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What did Lewis waterman invent?

He did NOT invent the fountain pen he patented it. The first fountain pen was invented by a french-man named M.Bion. Lewis Waterman just improved it.


Which objective should be use first in viewing an object?

I assume this is a question about viewing an object through a compound microscope. Always use the shortest objective lens (that is the one with the lowest magnification) first. Focus the lens and then when you want more detail or a closer view, you can simply rotate the lens turret to a longer lens and it should be nearly in focus. Use the fine focus feature to sharpen the picture. If an object is viewed in this way, the danger of scratching the high power objective by ramming it into the slide is lessened.


What are the general objective of forensic investigation?

The general objectives of forensic investigation include the identification, collection, preservation, and analysis of physical evidence related to criminal activities. This process aims to establish facts that can support or refute hypotheses about a crime, ultimately aiding law enforcement in solving cases. Additionally, forensic investigations seek to ensure that evidence is admissible in court, contributing to the pursuit of justice by providing objective and scientifically valid findings.


Which objective should be in place both when beginning to use the microscope?

Scanning objective


What brings specimen into general focus on a microscope?

In a microscope, the specimen is brought into general focus primarily using the coarse focus knob, which adjusts the distance between the objective lens and the slide. This knob allows for large adjustments in focus to quickly locate the specimen. Once the specimen is approximately in focus, the fine focus knob can be used for more precise adjustments. Additionally, proper alignment of the light source and the use of appropriate objective lenses contribute to achieving a clear image.