Tech
Researchers create battery-free mobile phone
Researchers at the University of Washington have created a mobile phone prototype that doesn’t require a battery to operate.
The astonishingly efficient prototype requires just 3.5 microwatts of juice, and it employs an innovative approach to avoid the need for a battery cell.
Instead, it uses ambient power from radio signals and light — its onboard solar cell is “roughly the size of a grain of rice” — to transmit a signal back to a base station 50 feet away.
Read also: Hackers target US nuclear facilities
The prototype itself is made of simple materials: capacitive touch buttons, a circuit board, and other “off the shelf” components.
More impressive is that the team of scientists were able to create a custom base station to transmit the signal with such a small amount of power.
RipplesNigeria ….without borders, without fears
Click here to download the Ripples Nigeria App for latest updates
Join the conversation
Support Ripples Nigeria, hold up solutions journalism
Balanced, fearless journalism driven by data comes at huge financial costs.
As a media platform, we hold leadership accountable and will not trade the right to press freedom and free speech for a piece of cake.
If you like what we do, and are ready to uphold solutions journalism, kindly donate to the Ripples Nigeria cause.
Your support would help to ensure that citizens and institutions continue to have free access to credible and reliable information for societal development.
German Police bust alleged Nigerian scam dating ring
German authorities have arrested eleven individuals suspected of being members of a Nigerian mafia group involved in a large-scale dating...
INVESTIGATION: In Kwara, multimillion-naira milk processing plant is abandoned, converted to a chicken outlet
After the government spent millions of naira to establish a milk processing plant in Kwara State that would provided jobs...
SPECIAL REPORT: For Sokoto communities, promise of healthcare is akin to death sentence
In this story, ABDULRASHEED HAMMAD delves into the dire realities of Primary Health Care services in Sokoto State, shedding light...
ICYMI…SPECIAL REPORT: NNPCL hides behind PIA to frustrate disclosure, accountability
Nigeria’s major oil company, Nigerian National Petroleum Corporation Limited (NNPCL), in what appears to be a common practice of disregard...
INVESTIGATION: Multi-million naira Ekiti resort center remains uncompleted a decade after
The multimillion-naira project, expected to comprise recreational buildings, now consists of cassava farmland, a bush used for excretion, and a...
Suleiman Adeyemi
July 9, 2017 at 8:55 pm
Very good and kudos to the University Students in USA. Unlike, here in Nigeria, Universities. Their priority in learning, researches and academic activities are mere on religion scriptures and agitations to get the Country off the map on Tribal and religion differences.