Vectors and 3D Models
Local Search - Science
Weather Information
Get the App for Smartphones and Tablets

Go Back

WhmSoft Free Articles Directory
Free Articles for Reprint
Free Articles to Publish
Free Articles for Newsletters
Videos to Watch

Page Generation Date and Time:
06/24/2024 06:36:43

Free the Animation VR / AR
Play to reveal 3D images and 3D models!
Demonstration A-Frame / Multiplayer
Android app on Google Play
vlrPhone / vlrFilter / vlrMemos
Project of very low consumption, radiation and bitrate softphones / Multifunction Audio Filter with Remote Control / App to measure the quality of the voice!

Alexa Data

Go To Articles Directory Home Page

To get the current article, - See Below (at the bottom of the page) -.
For top news titles, see below.
Web sites and videos listed in this page are frequently updated.
If you find that this page is useful (quality of web sites, images and videos, ...), you can add it to your favorites.
Bookmark Page !

Tell a Friend:

With your mobile phone (WAP / I-Mode / iPhone / PDA), for free:
The Top News -
The Daily Files -
All the Directory Files -

Web version of feeds:
Podcast Music -
Daily Files -

You can play the Guitar Drum Revolution game (flash game) by following the link below:
Play Guitar Drum Revolution Game

You can play free online games (flash games) by following the link below:
Free Online Games

Play the samples below:
Beat Tom GreenAnimal MarathonPokemons ChallengeTraŚneauSnowy Treasure Hunter 3
Beat Tom GreenAnimal MarathonPokemons ChallengeTraŚneauSnowy Treasure Hunter 3

You can view the people (celebrities) news and the front page news (with videos, images and constant updates) by following the link below:
View Recent News
or by visiting the WhmSoft Service blog:
News Photos Slideshows

Article Keyword Videos to Watch
Click on the image to start the video.

Related Topics
Images - Links - Articles

Los Angeles

Related Images

Article Category Videos to Watch
Go to the Videos Pages

History And Uses Of Optical Microscopes

Optical microscopes use visible light and a system of lenses to magnify small samples that are usually un-seen to the bare eye. The optical microscope is the first, oldest and simples type of microscope (as opposed to the much more advanced electronic microscope). The first optical microscopes were created in the 18th century. Due to it's compact sizes, simplicity and relatively low price, the optical microscope is very popular, and can be found in use in many areas of biology. Optical microscopes mostly magnify objects for up to 1500 times.

The first optical microscopes were structured in a way that is called "the simple microscope". This structure utilizes only one pair of lenses to create a magnified image of the sample. Today, the simple structure is in use only in the magnifying glass, hand lens and the loupe.

The more advances optical microscopes, and the ones that are popular today, are what's called "compound optical microscopes". These microscopes use a system of many lenses, in order to "compound" and multiply the magnification, and therefore maximize it. The two main lens systems in an optical microscope are the objective lens (near the examined object), and the eyepiece lens (up near the eye of the scientist). Modern optical microscopes use multiple lenses both in the objective part as well as the eyepiece part.
The old optical microscopes also used a mirror to provide illumination below the object. The modern optical microscopes use a strong lamp to provide constant and strong illumination.

So what are optical microscopes used for now a days?
The main uses of compound optical microscopes include:

The examining small pieces of material, or even a smear or a squash preparation. This is due to the fact that the optical microscope uses light to pass beneath the object and enter the lenses. That's why the item is better be half-transparent. In other uses the optical microscope may be used to examine metal samples, in order to study the metal's structure.
At low power, microscopes can be used to examine small living animals and plants. At high power, they can be used to examine bacteria.

It is important to note that the vast advancement in medicinal fields and biology in general, is owed to a large extent, to the invention of the optical microscopes. For example, the way the blood flows in our body was not fully understood until the microscope made in possible to examine small blood vessels behavior.

About the Author: Alex Dale is the owner of a microscopes website called Visit our site and learn all about compound microscope as well as other tips about

Recommended Web Site(s):

Free the Animation Game

Recommended WhmSoft Web Sites, Feeds and WAP Address:

WhmSoft Software Home Page - Software
WhmSoft Services Login Page - Music and Images
WhmSoft Moblog Home Page - Blog - Photo Gallery
WhmSoft Free Online Games Home Page - Flash Games
WhmSoft Services RSS Feed - Daily Music, Image and 3D Flash Animation
Classical Music with Drum RSS Feed - MIDI and MP3 Files
Classical Music with Drum Podcast Feed - MP3 and MP3 Files
WAP / I-Mode / PDAs - Daily Music, Image and Flash Animation

Home Pages:

WhmSoft Free Articles for Reprint Home Page
WhmSoft Services Home Page - Music and Images
Copyright (C) 2006-2024 WhmSoft - All Rights Reserved.