Physics

Articles about physics, cosmology, astrophysics, electricity, energy, forces, gravity, light and maths...

09 November 2005

The illuminating story of colour constancy: why what you think you see and what you actually see are different...

02 November 2005

Ultrasound Scans (USS), and now Magnetic Resonance Imaging (MRI), allows us to visualise body tissues in high...

24 August 2005

The placenta forms on the uterus wall during pregnancy and, via the umbilical cord, links the baby to its mother. Chris...

04 May 2005

Radiologist Bob Bury investigates some of the new 'scanning' technologies, which have revolutionised medical...

13 April 2005

Coincidences are just waiting to happen. For all those times you've witnessed uncanny events, or had cause to...

19 January 2005

Discovered by Wilhelm Roentgen almost by accident, X rays are part of the electromagnetic spectrum that includes...

03 November 2004

Nothing that you do is safe. Everything carries an inherent risk, but what is justifiable risk, and how do you assess...

15 September 2004

Consultant radiologist, Dr. Bob Bury, discusses public perception of risk and how we assess risk in the context of...

08 September 2004

By the year 2020, the number of people in the world suffering from blindness will have risen to 45 million. The vast...

30 June 2004

Exposing patients to x-rays is a gamble between a necessary investigation to aid in forumlating a diagnosis, and the...