Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

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

Hi;

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

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

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,522

Have you checked the Wikipedia page on it?

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.**

**Online**

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

Yup, Anton van Leeuwenhoek.

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.**

**Online**

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

So, Robert Hooke created the modernized style?

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.**

**Online**

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

Oh. Why two?

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

Yes.

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

Oh. Maybe more improvements to the microscope?

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

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

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

Wow, big magnifications...

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

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.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

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

Okay.

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,434

This concludes our broadcast about microscopes.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**

Pages: **1**