Tweet Pin It Email Share WorldShares lets you earn donations for your favorite nonprofit. Earn up to 20 points now. Learn More Earn Points What's this?

MNN.COM›Green Tech› Research & Innovations Alexander Graham Bell speaks from the 1880s Early sound recordings by Alexander Graham Bell that were stored at the Smithsonian Institution for more than a century were played publicly for the first time Tuesday. Read more: SCIENCE, VIDEO You might also like: Related Topics: Science, Video Related Videos Man completes triathlon, juggling all the way Plastic bag ban is great news, says Philippe Cousteau Jr. Understanding flesh-eating bacteria Wife's strength gives man courage to wear pink tutu Comments Follow this conversation Add your comment View: All (1) LoveLiveLife 12/14/2011 10:12 AM This is awesome! | Reply report this post  Add your comment Sign in with one of these accounts or just add your comment below. Log in or create an account     Enter your comments E-mail: Used only for emailed comments and will not be displayed with your post Follow this conversation Notify me with an email when other people comment on this article. The posting of advertisement, profanity or personal attacks is prohibited. Click here to review our Terms of Use

EDITORS' PICKS Earn 100 points for signing up for a free iMeet trial now. JOIN NOW Sponsored by ADVERTISEMENT NEWSLETTER Mother Nature. Delivered Daily Weekly CONNECT WITH MNN Follow @twitterapi  Tumblr  Google + From our sponsor Interview with green strategist Lewis Perkins Sustainability strategist and Fast Company blogger shares insights on corporate... more > Go green anywhere, anytime with PGi See the visual story of how one company is reducing the need for corporate travel... more > Is there a telecommuting personality type? Some individuals may be wired to succeed at working from home while others just... more > Carbon calculator: Know your travel footprint Travel is a reality for many business people, but not all businesses consider the... more > PGi green data center: Efficiency brings environmental savings The following article is based on an interview with Aaron Lafferty, PGi Director... more > PGi: Better for your business, better for the planet ADVERTISEMENT