1.) With hydrochloric acid, a drill-free way to fix tooth cavities.
2.) The PrePeat eco-printer uses rewritable paper to erase and reuse documents.
3.) Hackers used a phishing attack to steal and resell corporations' carbon credits.
4.) The hospital of the future: composted, reusable, solar-powered, off-grid, electronic, recycled.
5.) A Japanese company has devised a way to increase the life of lithium-ion batteries.
This post was originally published on Smartplanet.com