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We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

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Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

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'Spermbots' Developed for Fertilisation and Drug Delivery

December 12, 2013, 5:50 PM
Spermbot

Scientists have developed a way of trapping single sperm cells inside metal nanotubes. The direction of these 'spermbots' can be controlled remotely to deliver drugs or fertilize an egg.

The video below captures magnetic nanotubes 50 microns long by 5 to 8 microns in diameter that were dropped into a fluid containing bull sperm.

Watch here:

You can read the paper outlining this research here

What's the Big Idea?

"If I were to say someday you’ll have millions or even billions of nanobots, blood cell size devices going through your body and keeping you healthy from inside, I might think well, that sounds awfully futuristic."

The futurist and inventor Ray Kurzweil told Big Think this in TK before pointing out that early experiments were already showing promise, such as a blood cell-size device "that can detect and destroy cancer cells in the bloodstream."  

Watch the video here:

 

 

'Spermbots' Developed for F...

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