Ajai Raj

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2 DIY Printers That Would’ve Impressed Gutenberg

By Ajai Raj / May 9, 2013

This Voice-Activated Organizing Robot Makes Sure You’ll Never Lose A Screw

By Ajai Raj / Jul 30, 2013

5 Eco-Friendly Cities Built From The Ground Up

By Ajai Raj / Jun 11, 2013

How It Works: Masdar’s Beam Down Optical Tower

By Ajai Raj / May 30, 2013

Megapixels: A Parasitic Worm Infects An Ant

By Ajai Raj / May 21, 2013

Build Your Own Resistor Substitution Decade Box

By Ajai Raj / Mar 22, 2013

The 49-Year History Of One Of Science’s Most Storied Subs

By Ajai Raj / Feb 13, 2013