We have all been in the situation where our phone runs out of power at just the wrong time, haven’t we? This is an incredibly frustrating situation, which is why we were so interested to hear of the work bring carried out by a chap called Shashank Priya.
He works at the Virgina Tech in Blacksburg and his team are working on an emergency phone charger which could get you out of a jam now and then.
It works by shaking it, which is just how we like our emergency chargers to work. It gets its emergency energy from what your gran would call piezoelectric force. This can be generated by your voice, by your fingers clicking away at the keys or by giving it an old fashioned shake.
Make One Call
The experiments involved zinc oxide, which is commonly used in generating piezoelectric power and the results were pretty good. It isn’t going to give you enough juice to keep on playing games for hours but it should give you enough to make an emergency call. Priya said that it if you shake your phone for a few minutes then this should give you enough energy to make “one important call”.
The team of scientists also came up with a mini wind turbine charger for getting your phone all juiced up when you are at home. This works by giving you around a watt of power when the wind hits speeds of up to 10 kilometres per hour. It would take between 45 and 90 minutes to charge up most phones.