Why? Most folding bicycles are heavy and difficult to collapse. Conceived as portable luggage, the IF Mode is made of lightweight materials and eliminates oily chains, complex tubes, hidden dirt traps, and much of the clutter of conventional bicycles. As mobility systems become more interconnected, portable, folding designs like this will facilitate transfers between different...

Why? In most rural areas of the developing world, people rely on fuels such as kerosene that are dangerous and pose serious health problems. The Solar-Rechargeable lamp is both a safe, electrical lighting alternative and it reduces greenhouse gases. It is also a service-oriented solution for rural electrification: villagers rent these portable, rechargeable lanterns from...

Photo: Apple, Inc As the popularity of eBooks and eInk surges, I wonder about the impact on book publishing and ponder the pleasures of traditional paper books. Why would anyone want an electronic book? After all, a beautifully designed and produced paper book is so wonderful! It’s easy to carry around and very robust. The...