Electricity from the Airwaves

Electricity from the Airwaves

Perpetual motion machines cannot exist, at least according to the Laws of Thermodynamics. Eventually, the energy will leak out and the machine will stop. But if you can provide a machine with an endless external source of energy — such as the sun — it...
Wireless Power Activates LED Implants in Mice

Wireless Power Activates LED Implants in Mice

The vocabulary word for today is “optogenetics.” It refers to a process that uses light to control living neurons that are light-sensitive. The neurons contain photosensitive proteins, either through selective breeding or through the use of viruses that...
New Flexible Electricity Storage for Wearables

New Flexible Electricity Storage for Wearables

Wearable Health Tech devices need power, and in almost all cases, this comes from stored electricity. Chemical batteries are still the technology of choice, but the search is on in earnest for better solutions. One enticing area of exploration is the supercapacitor...
Supercapacitor Yarn Made from Nanowires

Supercapacitor Yarn Made from Nanowires

Batteries store electricity, but they’re not ideal for wearable Health Tech devices. They aren’t all that great in terms of how much power they can store in a given space, they are slow to charge, and they are slow to discharge. That’s why designers...