Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #572335

Re: Eight things you might not know about light

Show all headers | View raw

On 4/21/2016 9:07 PM, benj wrote:
> On 04/21/2016 12:34 PM, Odd Bodkin wrote:
>> On 4/21/2016 11:07 AM, benj wrote:
>>> On 04/21/2016 09:51 AM, Odd Bodkin wrote:
>>>> On 4/20/2016 9:01 PM, benj wrote:
>>>>> We can go with Geiger clicks as individual photons, but how do you
>>>>> know
>>>>> PMT signaks are not "waves"?  Not common to see individual photon with
>>>>> PMTs.
>>>>
>>>> I don't believe that's an accurate statement. PMTs are used all the
>>>> time
>>>> in extremely low light scenarios.
>>>
>>> Too much noise to easily distinguish single photons from noise.
>>
>> I think not. Look up Ring Cerenkov counters.
>>
>> Here's an installation that uses them to detect single photons:
>> http://www-sk.icrr.u-tokyo.ac.jp/sk/index-e.html
>
> Hey, I didn't say it was not possible I said it wasn't common, Mr.
> Debate team captain.

Well, I suppose that depends on how you choose to use the PMT, doesn't it?

>
> Nifty experiment though. Certainly much more worthwhile than LIGO.
> You do know that I was there where the first Neutrinos were detected,
> right?  Only they looked for gamma rays from electron-positron
> annihilation. So the tank wasn't filled with water.

You were there at the Reines-Cowan experiments? Is your name on their 
papers?

>
> Oh, but hell, I forgot. You know all this stuff so why am I bothering to
> tell you. You'll just correct me anyway (even though you weren't there).
>


-- 
Odd Bodkin --- maker of fine toys, tools, tables

Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Eight things you might not know about light Sam Wormley <swormley1@gmail.com> - 2016-04-19 11:21 -0500
  Re: Eight things you might not know about light Helmut Wabnig <hwabnig@.- --- -.dotat> - 2016-04-19 18:31 +0200
    Re: Eight things you might not know about light Sam Wormley <swormley1@gmail.com> - 2016-04-19 11:33 -0500
    Re: Eight things you might not know about light Poutnik <poutnik4nntp@gmail.com> - 2016-04-19 18:42 +0200
    Re: Eight things you might not know about light Sergio <invalid@invalid.com> - 2016-04-19 18:06 -0500
      Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 00:08 -0400
        Re: Eight things you might not know about light HVAC <mr.hvac@gmail.com> - 2016-04-20 04:25 -0700
          Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 13:23 -0400
        Re: Eight things you might not know about light Odd Bodkin <bodkinodd@gmail.com> - 2016-04-20 08:12 -0500
          Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 13:26 -0400
            Re: Eight things you might not know about light Odd Bodkin <bodkinodd@gmail.com> - 2016-04-20 12:41 -0500
              Re: Eight things you might not know about light Sergio <invalid@invalid.com> - 2016-04-20 12:53 -0500
              Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 22:01 -0400
                Re: Eight things you might not know about light Odd Bodkin <bodkinodd@gmail.com> - 2016-04-21 08:51 -0500
                Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-21 12:07 -0400
                Re: Eight things you might not know about light Odd Bodkin <bodkinodd@gmail.com> - 2016-04-21 11:34 -0500
                Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-21 22:07 -0400
                Re: Eight things you might not know about light Odd Bodkin <bodkinodd@gmail.com> - 2016-04-22 07:42 -0500
                Re: Eight things you might not know about light Sergio <invalid@invalid.com> - 2016-04-21 11:33 -0500
                Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-21 21:45 -0400
    Re: Eight things you might not know about light "Y.Porat" <y.y.porat@gmail.com> - 2016-04-20 01:43 -0700
  Re: Eight things you might not know about light "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-04-19 12:24 -0700
    Re: Eight things you might not know about light "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-04-19 15:32 -0700
    Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-19 23:31 -0400
  Re: Eight things you might not know about light "nuny@bid.nes" <Alien8752@gmail.com> - 2016-04-19 17:08 -0700
    Re: Eight things you might not know about light Sam Wormley <swormley1@gmail.com> - 2016-04-19 19:23 -0500
    Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 00:09 -0400
      Re: Eight things you might not know about light "nuny@bid.nes" <Alien8752@gmail.com> - 2016-04-19 23:15 -0700
  Re: Eight things you might not know about light Sylvia Else <sylvia@not.at.this.address> - 2016-04-20 12:07 +1000
    Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 00:14 -0400
      Re: Eight things you might not know about light "Y.Porat" <y.y.porat@gmail.com> - 2016-04-20 06:38 -0700
    Re: Eight things you might not know about light Sam Wormley <swormley1@gmail.com> - 2016-04-20 11:09 -0500
      Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-20 13:46 -0400
        Re: Eight things you might not know about light Poutnik <poutnik4nntp@gmail.com> - 2016-04-20 20:07 +0200
        Re: Eight things you might not know about light Sylvia Else <sylvia@not.at.this.address> - 2016-04-22 11:50 +1000
          Re: Eight things you might not know about light benj <nobodyxx@gmail> - 2016-04-21 23:19 -0400
  Re: Eight things you might not know about light "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-04-21 09:19 -0700
    Re: Eight things you might not know about light Sam Wormley <swormley1@gmail.com> - 2016-04-21 15:46 -0500

csiph-web