Corning Willow Glass Used in Photovoltaic Shingles May Reduces Price Of Solar Energy. Us department of energies national renewable energy lab has combined willow glass with CdTe Photovoltaic to make cheaper solar roof shingles.
Constructa Labs is raising funds for The Gripstar: The most versatile clip out there. on Kickstarter! A Hand Crafted clip, versatile, reusable with many applications. Best of all doesn't damage what you hang. How would you use it?