iPhone users in Brazil who also subscribe to a magazine called Capricho recently got an extra bonus in one issue. But it wasn’t a promo code for a free iTunes track or anything like that. No, it was a special printed cover that turned the rolled up magazine into a passive amplifying speaker for their phone.
The clever stunt was, not surprisingly, an advertisement for Coca-Cola — specifically a special promotion that was running in South America. But if you study the video carefully and are handy with a hobby knife, there’s no reason you couldn’t also turn a copy of Sports Illustrated or National Geographic into a similar speaker dock that isn’t shilling sugar water.
Video. There are a lot of logistical problems that pop up when you build a 181m structure like the Three Gorges Dam in China's Hubei province. For example, how do ships navigate the sudden extreme difference in water heights on either side of the dam? That's an easy one. You just build the world's largest elevator capable of lifting 3 million kilograms of boat and water.
Want a drone to fly longer and farther? Give it a bigger battery. But that adds weight, which in turn reduces the drone's flight time. It's quite a conundrum. It seems like an unresolvable catch-22, except that someone has finally found a way to use wireless power to keep a drone flying.