Date: Thu, 9 Sep 2010 07:15:30 -

Author: Cliff Bettis

Subject: Re: Lorentz Contraction demonstration

Post:

Steve,

We're going to use a blue laser and the Fabry-Perot cavity is 50,000
wavelengths long so we ought to be able to see a fractional change off the
peak, presuming noise (like side to side jitter on the air track) doesn't
wash out the results.

Cliff

-----Original Message-----
From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
Behalf Of Steve Wonnell
Sent: Thursday, September 09, 2010 6:00 AM
To: tap-l
Cc: Steve Wonnell
Subject: Re: [tap-l] Lorentz Contraction demonstration

Cliff,

I haven't.

I calculate a length contraction by a factor
of about (1 - 5.55e-18) for a velocity of 1 m/s.

For a spacing of 1 meter, ther'd be (1/632e-9) or about 1.58e6
wavelengths of red light, and the contraction would amount
if I've done my calculations correctly.

Awfully small.

Would it be just to illustrate the concept?

Steve W.

On Wed, 8 Sep 2010, Cliff Bettis wrote:

> Date: Wed, 08 Sep 2010 13:43:07 -0500
> From: Cliff Bettis
> To: tap-l
> Subject: [tap-l] Lorentz Contraction demonstration
>
> Have any of tried this: putting a Fabry-Perot interferometer on an air
> track, aiming a laser at it from the lab frame and then moving the
> interferometer on the track?
>
>
>
> Cliff
>
>

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