You no longer get free kindle books with prime and they start charging without asking. Same applies for movies. If you don’t order enough to make the free shipping worth while it’s not worth it anymore. And the “2 days shipping” is not guaranteed anymore. 0 Reply Nanc Reply to...
Since the basic sensing principle of the electronic paper is based on charging particles within a transparent micro-container, then the electronic paper can also be used to detect chemical or biological agents with a sensing reaction that involves charge transfer. Currently, members of the military,...