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Author: Ben_Pearson@vwr.com Received: from SMTP.VWR.COM (smtp.vwr.com [67.216.70.13]) by uni00ml.unity.ncsu.edu (8.13.7/8.13.8/N.20071210.01) with ESMTP id n2QHLAu9001119 for ; Thu, 26 Mar 2009 13:21:10 -0400 Received: from vwrimail.vwr.com ([10.76.0.167]) by SMTP.VWR.COM (Lotus Domino Release 7.0.2FP2) with ESMTP id 2009032613222207-191550 ; Thu, 26 Mar 2009 13:22:22 -0400 In-Reply-To:

Subject: Re: CENCO Particle in a Box

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Cliff,
No problem at all.

Could you send me some of the details about the catalog?

Thanks.
- Ben


Ben Pearson
--------------------------------------------------
VWR Education
Director of Category Management
--------------------------------------------------
O: 585.321.9485
C: 585.978.2780

cencophysics.com, sargentwelch.com, sciencekit.com, wardsci.com

Our new e/m apparatus:
http://www.cencophysics.com/e-m-apparatus-cenco/p/IG0044394/





cbettis@unlserve.unl.edu
Sent by: tap-l-owner@lists.ncsu.edu
03/26/2009 09:52 AM
Please respond to tap-l

To: tap-l@lists.ncsu.edu
cc:
Subject: Re: [tap-l] CENCO Particle in a Box


Thanks Ben,

Do you mind if I quote part of your explanation for my description of
this demonstration in my catalog?

Cliff

Quoting Ben_Pearson@vwr.com:

> The energy calculation is based on the calculation of a particle in a
> potential sphere (see the appendix of the instructions for more info).
The
> quantum "sphere" or "box" is not empty but filled with a semiconductor.
In
> order for the students to understand this they must first start with the
> derivation of a 1D particle in a box calculation, the sphere is
basically
> the same physical concept with a different mathematical geometry.
>
> The instructions are written two ways:
>
> 1) A more advanced college physics major can work all the way through
the
> derivation from first principles using the spherical geometry.
>
> 2) Entry level modern physics students can do the particle in a box
> derivation and then skip to the final energy calculation.
>
> In summary the fundamental science behind why this experiment works is
> based of the particle in a box theory.
>
>
> Regards,
> Ben
>
>
> Ben Pearson
> --------------------------------------------------
> VWR Education
> Director of Category Management
> --------------------------------------------------
> O: 585.321.9485
> C: 585.978.2780
>
> cencophysics.com, sargentwelch.com, sciencekit.com, wardsci.com
>
> Our new e/m apparatus:
> http://www.cencophysics.com/e-m-apparatus-cenco/p/IG0044394/
>
>
>
>
>
> "Dale E. Stille"
> Sent by: tap-l-owner@lists.ncsu.edu
> 03/25/2009 04:23 PM
> Please respond to tap-l
>
> To: tap-l@lists.ncsu.edu
> cc:
> Subject: Re: [tap-l] CENCO Particle in a Box
>
>
> Cliff,
>
> I actually have that experiment. I have it as 7B13.51 on my website -
> Materials the fluoresce or phosphoresce under UV light. If you think
> quantum dots need their own number, make a proposal and I will bring it
> up to the BIB committee.
> I'm not real clear in my mind as to how this really demonstrates
> particle in a box.....
>
> Later,
> Dale
>
>
> cbettis@unlserve.unl.edu wrote:
>>
>> Do we have a DCS number for this:
>>
>> http://sargentwelch.com/quantum-particle-in-a-box-cenco/p/IG0039296/
>>
>> ?
>>
>
>
>






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Cliff,

No problem at all.



Could you send me some of the details
about the catalog?



Thanks.

- Ben





Ben Pearson

--------------------------------------------------

VWR Education

Director of Category Management

--------------------------------------------------

O: 585.321.9485

C: 585.978.2780



cencophysics.com, sargentwelch.com, sciencekit.com, wardsci.com



Our new e/m apparatus:

http://www.cencophysics.com/e-m-apparatus-cenco/p/IG0044394/








*cbettis@unlserve.unl.edu*
Sent by: tap-l-owner@lists.ncsu.edu

03/26/2009 09:52 AM
Please respond to tap-l


To: tap-l@lists.ncsu.edu
cc:
Subject: Re: [tap-l] CENCO Particle in a Box







Thanks Ben,



Do you mind if I quote part of your explanation for my description of

this demonstration in my catalog?



Cliff



Quoting Ben_Pearson@vwr.com:



> The energy calculation is based on the calculation of a particle in
a

> potential sphere (see the appendix of the instructions for more info).
The

> quantum "sphere" or "box" is not empty but filled
with a semiconductor. In

> order for the students to understand this they must first start with
the

> derivation of a 1D particle in a box calculation, the sphere is basically

> the same physical concept with a different mathematical geometry.

>

> The instructions are written two ways:

>

> 1) A more advanced college physics major can work all the way through
the

> derivation from first principles using the spherical geometry.

>

> 2) Entry level modern physics students can do the particle in a box

> derivation and then skip to the final energy calculation.

>

> In summary the fundamental science behind why this experiment works
is

> based of the particle in a box theory.

>

>

> Regards,

> Ben

>

>

> Ben Pearson

> --------------------------------------------------

> VWR Education

> Director of Category Management

> --------------------------------------------------

> O: 585.321.9485

> C: 585.978.2780

>

> cencophysics.com, sargentwelch.com, sciencekit.com, wardsci.com

>

> Our new e/m apparatus:

> http://www.cencophysics.com/e-m-apparatus-cenco/p/IG0044394/

>

>

>

>

>

> "Dale E. Stille"

> Sent by: tap-l-owner@lists.ncsu.edu

> 03/25/2009 04:23 PM

> Please respond to tap-l

>

> To: tap-l@lists.ncsu.edu

> cc:

> Subject: Re:
[tap-l] CENCO Particle in a Box

>

>

> Cliff,

>

> I actually have that experiment. I have it as 7B13.51 on my website
-

> Materials the fluoresce or phosphoresce under UV light.
If you think

> quantum dots need their own number, make a proposal and I will bring
it

> up to the BIB committee.

> I'm not real clear in my mind as to how this really demonstrates

> particle in a box.....

>

> Later,

> Dale

>

>

> cbettis@unlserve.unl.edu wrote:

>>

>> Do we have a DCS number for this:

>>

>> http://sargentwelch.com/quantum-particle-in-a-box-cenco/p/IG0039296/

>>

>> ?

>>

>

>

>












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