The statement that it is the most afforadable is not true. There are bottles that refracts light in liquid invented by a Brazilian car mechanic Alfredo Moser.

The statement that it is the most afforadable is not true. There are bottles that refracts light in liquid invented by a Brazilian car mechanic Alfredo Moser. http://www.dailymail.co.uk/sciencetech/article-2393454/Brazilian-mechanic-uses-plastic-water-bottles-bleach-create-LIGHT--illuminating-1million-homes.html http://www.dailymail.co.uk/sciencetech/article-2393454/Brazi...