Technology Review: Videos

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Patching Hearts: By Courtney Humphries - Monday, November 03, 2008; This video shows a patch of engineered heart tissue "beating" in response to electrical field stimulation. Rat heart cells are embedded in a scaffold that mimics the properties of the heart.; Video by George Engelmayr - Read the Article

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: Voyage of the Bacteria Bots; Bacteria (fast white spots) swim through human blood in a microfluidic substrate with guidance from an MRI machine. The bacteria swim against the current, past red blood cells (slower white spots).

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Letters from The Editor

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A Synchronous Clock Made of Bacteria Such microorganisms might make environmental sensors or drug...	Cosmetics Testing without Animals This video shows dendritic cells moving through a chemical...	Color Comes to the Electronic Page From this year’s Consumer Electronics Show, four display...	Inflatable Device Stops the Bleeding Maynard Ramsey, the chief executive officer and chief...
Explaining Real-Time Search Google Fellow Amit Singhal explains how tweets and other...	"Emergent" Images to Outwit Spambots See how emerging videos are able to hide a moving subject from...	A Helmet to Prevent Paralysis Engineers are designing a helmet that could protect the spine...	On the Evolution of Technology New technologies are missing many things, but especially their...

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