You could call this point 'the ultraviolet spectrum of design': it's there, but imperceptible.

CNN: Are cool offices the key to success?

In 2007 the FCC adopted several of Wu's proposals in its design of a wireless spectrum auction.

FORBES: Magazine Article

This suggests an inefficiency in the auction design, since the same coverage ought to cost the same amount, says Paul Klemperer, an economist at Oxford University who helped design Britain's spectrum auction.

ECONOMIST: Mobile telecoms

The final pavilion, 'Reform and Inspire', focuses on the little known sequel to the Crimean years: the half-century during which Nightingale's reforming power was felt across the entire public health spectrum - not just nursing, but also hospital design, midwifery, workhouse reform, army health reform, together with the pioneering use of statistical data to record and analyse the nation's health.

BBC: Florence Nightingale: Legend of the Lady with the Lamp

However, on the other end of the spectrum and for more casual capture, the ZPen's clever, simple design competes best with the common and ubiquitous ink-slinger.

ENGADGET: Switched On: More options for getting from scribble to screen

This week Inhabitat also showcased an incredible spectrum of eco-efficient repurposed designs as we unveiled 23 finalists in our Spring Greening DIY Design Contest.

ENGADGET: Inhabitat's Week in Green: electric cars, solar planes, and really sweet lights