This time last year, we covered an interesting new solar charger that sought to avoid troublesome shadows from window frames, potted plants and household ornaments by sticking to the glass of the ...

If you live in a city, gazing out your window at a brick wall or weed-clogged vacant lot is not uncommon. Suburbanites, too, deal with ugly views—of car-strewn driveways or masonry walls. Anyone can, ...