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2000 Year-Old Zinc Tablets
2013-01-13 23:50:44| About Metals
<p>Scientists studying a 2000 year-old Roman shipwreck off the coast of Tuscany believe that the <a href="http://clk.about.com/?zi=1/1hc&zu=http://metals.about.com/od/metalproperties/a/What-Is-Zinc.htm">zinc</a> tablets <img style="float: right; margin-top: 4px; margin-left: 2px; margin-bottom: 1px; border: 1px solid white;" src="http://i.livescience.com/images/i/000/035/256/original/shipwreck-pills.jpg?1357659008" alt="Image of a round tin box holding 2,000-year-old zinc tablets from the Roman shipwreck Relitto del Pozzino. (Right: contents of the tin box.) CREDIT: Giachi et al., PNAS. Courtesy of www.livescience.com. " width="180" height="90" />found aboard were used for medicinal purposes.</p> <p>Six flat grey tablets (see photo), measuring approximately 1.6 inches (4 centimeters) in diameter and 0.4 inches (1 cm) thick were found in a round <a href="http://clk.about.com/?zi=1/1hc&zu=http://metals.about.com/od/properties/a/Metal-Profile-Tin.htm">tin</a> box, and are believed to have been used for treating eye and skin ailments.</p>...<p><a href="http://clk.about.com/?zi=1/1hc&zu=http://metals.about.com/b/2013/01/13/2000-year-old-zinc-tablets.htm">Read Full Post</a></p>
Printable, flexible, rechargeable, non-toxic zinc batteries could challenge lithium
2013-01-10 14:40:22| Extremetech
The familiar button battery has been workhorse of small electronics but has become the limiting factor for many design points in these devices. One company, Imprint Energy, has assembled the total assault package which might sound its death knell, a rechargeable and flexible, printed battery.
Tags: challenge
printable
flexible
batteries