Tagged: technology

How popular are mobile phones today?

Today it seems as though you can’t even throw a stone without hitting someone that has a cellphone. I can recall a time when cellphones were huge and hardly anyone had one. The cellphone industry has adapted, changed, and grown into a huge industry that provides an outlet for communication, not just locally, but reaches out to the entire world. The desire to get our ideas out there, so easily, has taken many people to great lengths to live their life in a way that informs others of almost everything the individual deems relevant in their life.

Lab-grown livers and 3D-printed kidneys

Organ transplants have been a lifesaving development and one of the shining success stories of modern medicine. But the shortage of organs for transplantation is an ongoing problem. One answer is to grow them artificially in a laboratory – a promising although controversial solution.

Predicting droughts in Africa

A drought alert system in Africa could contribute to preventing farms from collapsing as the risk of droughts increases with climate changes. And because the main issue remains the general lack of water, researchers are also analysing the management of water resources across the continent, looking for ways to improve both governance and cooperation between African regions.

How does a transistor work?

How does a transistor work? Our lives depend on this device. When I mentioned to people that I was doing a video on transistors, they would say “as in a transistor radio?” Yes! That’s exactly what I mean, but it goes so much deeper than that. After the transistor was invented in 1947 one of the first available consumer technologies it was applied to was radios, so they could be made portable and higher quality. Hence the line in ‘Brown-eyed Girl’ – “going down to the old mine with a transistor radio.”

First Human-Powered Helicoter

On June 13th, 2013, the AeroVelo Atlas Human-Powered Helicopter captured the long standing AHS Sikorsky Prize with a flight lasting 64.1 seconds and reaching an altitude of 3.3 metres.