Charge Your Cell Phone with Water

Novel mobile phone chargers are on display at the Mobile World Conference in Barcelona, demonstrating innovative fixes to the growing energy requirement of our mobile devices. 

What's the Latest Development?


The World Mobile Conference, currently underway in Barcelona, is the industry's showcase for new and innovative technology. This year, a Swedish company called myFC has introduced a portable charging system for mobile phones that needs just one teaspoon of water to generate enough electricity to charge a phone. "A Californian firm, meanwhile, has launched a phone that it claims can remain charged for up to 15 years, making it the perfect spare in emergencies or disasters." Wireless charging is another staple of this year's conference. 

What's the Big Idea?

We are increasingly demanding of our mobile devices, wanting them to perform greater feats while feeling ever-more inconvenienced by having to charge them. "The difference between the energy on a phone and the energy we consume is increasing. We need to charge more often but you don't want to be hooked onto a wall," said myFC executive Bjorn Westerholm. For everyday purposes, wireless charging mats may hold great promise. Mobile devices fitted with a special case could be charged by mats located in offices, cars and restaurants. 

Photo credit: shutterstock.com


Big Think Edge
  • The meaning of the word 'confidence' seems obvious. But it's not the same as self-esteem.
  • Confidence isn't just a feeling on your inside. It comes from taking action in the world.
  • Join Big Think Edge today and learn how to achieve more confidence when and where it really matters.
Sponsored by the Institute for Humane Studies
  • There are 2 different approaches to governing free speech on college campuses.
  • One is a morality/order approach. The other is a bottom-up approach.
  • Emily Chamlee-Wright says there are many benefits to having no one central authority on what is appropriate speech.

Is there an optimal time of day to exercise?

Two new studies say yes. Unfortunately, each claims a different time.

Bronx, N.Y.: NYPD officer Julissa Camacho works out at the 44th precinct gym in the Bronx, New York on April 3, 2019. (Photo by Alejandra Villa Loarca/Newsday via Getty Images)
Surprising Science
  • Research at the Weizmann Institute of Sciences declares evening to be the best time for an exercise session.
  • Not so fast, says a new study at UC Irvine, which replies that late morning is the optimal workout time.
  • Both studies involved mice on treadmills and measured different markers to produce their results.
Keep reading Show less
Big Think Edge
  • Economist Sylvia Ann Hewlett breaks down what qualities will inspire others to believe in you.
  • Here's how 300 leaders and 4,000 mid-level managers described someone with executive presence.
  • Get more deep insights like these to power your career forward. Join Big Think Edge.