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#1 2013-08-02 15:55:15

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
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Microscope

Hi;

I am confused about the history. dizzy Can you tell me more about it?


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#2 2013-08-02 23:36:05

anonimnystefy
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From: The Foundation
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Re: Microscope

Have you checked the Wikipedia page on it?


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#3 2013-08-02 23:43:42

bobbym
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From: Bumpkinland
Registered: 2009-04-12
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Re: Microscope

Ever heard of the Dutchman Leeuwenhoek?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4 2013-08-03 18:22:35

mathaholic
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From: Juliania
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Re: Microscope

Yup, Anton van Leeuwenhoek.


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#5 2013-08-03 23:42:47

bobbym
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From: Bumpkinland
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Posts: 86,786

Re: Microscope

The guy who first invented it but Robert Hooke gets the credit for the modern form.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#6 2013-08-04 11:37:16

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
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Re: Microscope

So, Robert Hooke created the modernized style?


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#7 2013-08-04 17:47:52

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

Yes, he used two lenses rather than one.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#8 2013-08-04 19:25:16

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
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Re: Microscope

Oh. Why two?


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#9 2013-08-04 20:42:25

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

The two lenses are called ocular and objective. When you use one lens as Leeuwenhoek did you get more distortion.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#10 2013-08-06 18:00:03

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
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Re: Microscope

Why?

By the way, I know the objectives:

Scanner 4x
LPO 10x
HPO 40x
OIO 100x

Then multiply by 10x to get the total magnification.


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#11 2013-08-06 19:20:30

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

That is if you have a 10x ocular.

The 100x is an oil immersion and demands special techniques.

The reason you use two lenses is to cut down on distortion. Leeuwenhoek's idea was really strange and basically  uses one very big ocular.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#12 2013-08-06 20:09:32

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
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Re: Microscope

Yes.


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#13 2013-08-06 20:14:24

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

You rarely see oculars pf more magnification of 10x or 15x. His ocular was around 200x or 300x.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#14 2013-08-07 16:34:08

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Microscope

Oh. Maybe more improvements to the microscope?


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#15 2013-08-07 21:15:53

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

There are limits to what can be done with light or even ultraviolet light. The next advance was the electron microscope.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#16 2013-08-09 15:52:39

mathaholic
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From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Microscope

The electron? So, the compound is two lenses, right?


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#17 2013-08-09 22:57:59

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

Light has a certain wavelength. Things close to that wavelength or smaller can not be seen clearly by it. The best light microscopes have about 2000 X magnification or so. To get more you have to use something smaller than light. The electron is a particle we can control and it is much smaller than the wavelength of light. It requires more specimen preparation but magnifications of over 100000 are possible.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#18 2013-08-17 12:57:59

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Microscope

Wow, big magnifications...


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#19 2013-08-17 13:34:16

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

The difference though is that in the light microscope you can see the specimens alive, in the electron microscope they can only be viewed after lots of preparation and in a vacuum. So they are dead.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#20 2013-09-20 15:44:23

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Microscope

Okay.


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#21 2013-09-20 18:11:53

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,786

Re: Microscope

This concludes our broadcast about microscopes.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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