Gareth Mitchell

Recent articles by Gareth Mitchell

Why can’t computers complete CAPTCHAs? © iStock

Everyday science

Why can’t computers complete CAPTCHAs?

What's the difference between a scramjet and a ramjet engine? © iStock

Future Technology

What’s the difference between a scramjet and a ramjet engine?

Can computers make mistakes? © iStock

Everyday science

Can computers make mistakes?

Urine-powered robots get an artificial heart © Getty Images

Future Technology

Could robots be programmed to evolve?

How long is a jiffy? © iStock

Everyday science

How long is a jiffy?

What is the world’s smallest camera? © CSEM

Future Technology

What is the world’s smallest camera?

How can we make cars more energy efficient? Ecorunner V (© Rick Settles)

Future Technology

How can we make cars more energy efficient?

Is it really possible to control a robot with your mind? © Getty Images

Is it really possible to control a robot with your mind?

How does light travel down a fibre optic cable? © Getty Images

Everyday science

How does light travel down a fibre optic cable?

How are TV viewing figures calculated? © Getty Images

Future Technology

How are TV viewing figures calculated?

What happens to old aeroplanes? © Getty Images

Future Technology

What happens to old aeroplanes?

Does drying out a mobile phone in rice work? © iStock

Future Technology

Does drying out a mobile phone in rice work?

What is the world’s strongest truck?

Future Technology

What is the world’s strongest truck?

Can you prevent your phone being hacked? © Getty Images

Everyday science

Can you prevent your phone being hacked?

Can you get a virus by watching YouTube? © Getty Images

Future Technology

Can you get a virus by watching YouTube?