What we're reading: drill-free dentistry

Drill-free cavities; rewritable printing; carbon credits hacked; hospital of the future; lithium-ion battery life.

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