F4user
Allowing Ads
- Joined
- Jun 2, 2014
- Messages
- 80
- Format
- 35mm
Like.
All my life I improvised.
For scientific details about beer bottle { beer safety and ... possible foggy vision
} spectrum read this:
http://www.edenfoods.com/articles/view.php?articles_id=181
Beer bottle seems to have ~600 nm peak but quite large spectrum.
LE
Why bother with batteries ? .. why you don't use universal 5V ( 2.5 W ) aka USB socket ? computer or charger.
Or cheap "night light" directly in mains socket with a bottle over it.
All my life I improvised.
For scientific details about beer bottle { beer safety and ... possible foggy vision
} spectrum read this:http://www.edenfoods.com/articles/view.php?articles_id=181
Beer bottle seems to have ~600 nm peak but quite large spectrum.
LE
Why bother with batteries ? .. why you don't use universal 5V ( 2.5 W ) aka USB socket ? computer or charger.
Or cheap "night light" directly in mains socket with a bottle over it.
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