Ibrahim Diarra

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Newly-discovered metal alloy can shape-shift forever

A team of materials scientists at the University of Minnesota have discovered a metal alloy that can rearrange its crystalline structure almost …

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Astronaut Tom Jones: Why Gravity is an Irresistible Force

How closely does the new space thriller Gravity, starring Sandra Bullock and George Clooney and out this weekend, resemble reality in space? Veteran astronaut and PopMech contributor Tom Jones explains.<p><b>In my dreams of spaceflight</b>, years after my final mission, I usually find myself in the middle of …

George Clooney

Design An Anti-Poaching Drone And Win $25,000

Can you and four friends figure out how to catch poachers on the cheap?<p>Poachers tend to operate in places that are difficult to reach and far from law enforcement. For countries that want to protect their indigenous wildlife, especially the rare and endangered rhinos whose horns can sell for up to …

Male brain versus female brain: How do they differ?

Chapter 16 of my book, <i>50 Human Brain Ideas You Really Need to Know</i>. Here's the introduction to the book, the chapter about topographic mapping, the chapter about mirror neurons, and my post about the most important idea in neuroscience.<p><b>Summary</b>: Subtle observable differences exist between male and …