Brain boost required? Grab a 9V battery
Scientists have found that some wires, a wet sponge and a 9volt battery that it can boost learning.
Tech n you 
Helping answer your questions about emerging technologies
Take a closer look at the issues
Helping answer your questions about emerging technologies
Take a closer look at the issues
Scientists have found that some wires, a wet sponge and a 9volt battery that it can boost learning.