Ferrolic is a desk clock which looks like an ever-evolving Rorschach test. Created by Zelf Koelman from the Eindhoven University of Technology, Ferrolic uses ferrofluid to tell the time, with this seemingly magical liquid moving gracefully around inside the clock as the minutes tick by.
Scientists have already devised systems that allow electronic devices to
scavenge power from ambient electromagnetic energy sources such as radio waves. While the technology has generally been limited to small devices such as wireless sensors,
a research team has recently created a scavenging system that charges a
smartphone's battery, letting it last up to 30 percent longer per
charge – and the system does so using radio signals emanating from the