Action of a Magnet on Ferrofluid - Cool!
This is a brief clip showing what happens to a ferrofluid when a magnet is passed close by. As you can see, this iron-containing fluid is no ordinary liquid....
the joy of tech comic picture picture on VisualizeUs
Military to use new gel that stops bullets
A new "bullet-busting" shock-absorbent gel is set to save the lives of British soldiers by substantially reinforcing their helmets.
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"Hi, my son says that I have spartans on my laptop and I should bring it to you guys."