Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.physics.relativity > #366745 > unrolled thread
| Started by | Natalina Nazvarova <natana42@hotmail.com> |
|---|---|
| First post | 2015-10-10 20:04 +0000 |
| Last post | 2015-10-11 12:05 +0200 |
| Articles | 3 — 3 participants |
Back to article view | Back to sci.physics.relativity
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
Re: Cosmic Rays and Smart Phones Natalina Nazvarova <natana42@hotmail.com> - 2015-10-10 20:04 +0000
Re: Cosmic Rays and Smart Phones John Heath <heathjohn2@gmail.com> - 2015-10-10 20:27 -0700
Re: Cosmic Rays and Smart Phones Poutnik <poutnik4nntp@gmail.com> - 2015-10-11 12:05 +0200
| From | Natalina Nazvarova <natana42@hotmail.com> |
|---|---|
| Date | 2015-10-10 20:04 +0000 |
| Subject | Re: Cosmic Rays and Smart Phones |
| Message-ID | <mvbqvv$3u2$1@speranza.aioe.org> |
Sam Wormley wrote: > Cosmic Rays and Smart Phones >> >> Track Cosmic Rays with Smartphone App >> http://www.scientificamerican.com/podcast/episode/track-cosmic-rays- with-smartphone-app/ >> >> Observing Ultra-High Energy Cosmic Rays with Smartphones >> http://arxiv.org/abs/1410.2895 >> >> Cosmic ray particle shower? There's an app for that. >> http://arstechnica.com/science/2014/10/cosmic-ray-particle-shower- theres-an-app-for-that/ Why not better detecting the Microwave Radiation pollution while at it, microwave owns, bluetooth, wifi, wlan etc, 2.4- 5.9 GHz give or take. There are sensor dedicated to the task embedded already.
[toc] | [next] | [standalone]
| From | John Heath <heathjohn2@gmail.com> |
|---|---|
| Date | 2015-10-10 20:27 -0700 |
| Message-ID | <8094ba0d-855c-4268-b4cd-31c8401c06e9@googlegroups.com> |
| In reply to | #366745 |
On Saturday, October 10, 2015 at 4:04:23 PM UTC-4, Natalina Nazvarova wrote: > Sam Wormley wrote: > > > Cosmic Rays and Smart Phones > >> > >> Track Cosmic Rays with Smartphone App > >> http://www.scientificamerican.com/podcast/episode/track-cosmic-rays- > with-smartphone-app/ > >> > >> Observing Ultra-High Energy Cosmic Rays with Smartphones > >> http://arxiv.org/abs/1410.2895 > >> > >> Cosmic ray particle shower? There's an app for that. > >> http://arstechnica.com/science/2014/10/cosmic-ray-particle-shower- > theres-an-app-for-that/ > > > Why not better detecting the Microwave Radiation pollution while at it, > microwave owns, bluetooth, wifi, wlan etc, 2.4- 5.9 GHz give or take. > There are sensor dedicated to the task embedded already. I have a geiger counter app for my iphone. You put black tape over the front camera then start the count. For Americium-241 it is about 20 hits a minute. Not bad for free. As to microwave , 2.5 GHz , it is too low in energy per photon to do any real damage. Microwave oven at 1000 watts at best just warms water up. 2.5 GHz WIFI , bluetooth , xbee in the 5 to 100 m watts range is zip nada zero.
[toc] | [prev] | [next] | [standalone]
| From | Poutnik <poutnik4nntp@gmail.com> |
|---|---|
| Date | 2015-10-11 12:05 +0200 |
| Message-ID | <mvdc51$oek$1@dont-email.me> |
| In reply to | #366758 |
Dne 11/10/2015 v 05:27 John Heath napsal(a): > On Saturday, October 10, 2015 at 4:04:23 PM UTC-4, Natalina Nazvarova wrote: >> Sam Wormley wrote: >> >>> Cosmic Rays and Smart Phones >>>> >>>> Track Cosmic Rays with Smartphone App >>>> http://www.scientificamerican.com/podcast/episode/track-cosmic-rays- >> with-smartphone-app/ >>>> >>>> Observing Ultra-High Energy Cosmic Rays with Smartphones >>>> http://arxiv.org/abs/1410.2895 >>>> >>>> Cosmic ray particle shower? There's an app for that. >>>> http://arstechnica.com/science/2014/10/cosmic-ray-particle-shower- >> theres-an-app-for-that/ >> >> >> Why not better detecting the Microwave Radiation pollution while at it, >> microwave owns, bluetooth, wifi, wlan etc, 2.4- 5.9 GHz give or take. >> There are sensor dedicated to the task embedded already. > > I have a geiger counter app for my iphone. You put black tape over the front camera then start the count. For Americium-241 it is about 20 hits a minute. Not bad for free. As to microwave , 2.5 GHz , it is too low in energy per photon to do any real damage. Microwave oven at 1000 watts at best just warms water up. 2.5 GHz WIFI , bluetooth , xbee in the 5 to 100 m watts range is zip nada zero. > There is no way selectively determine 241Am by iphone. Aside of selectivity, there is much stronger naturally occuring radiation from Radon 222 decay products. -- Poutnik ( the Czech word for a wanderer ) Knowledge makes great men humble, but small men arrogant.
[toc] | [prev] | [standalone]
Back to top | Article view | sci.physics.relativity
csiph-web