95 results found for 11-14-year-olds

In this episode of Helix, Patricia Martin outlines the symptoms and causes of sickle cell disease (also referred to as sickle cell anemia), a hemoglobin-affecting disorder.

This episode covers the rare blood disorder, hemophilia.

This episode outlines details about Wilson disease, a rare disorder involving the amounts of copper in the body,  and the negative effects on vision and different organs.

This episode covers the symptoms and theorized causes of the Autism Spectrum Disorders.

A short video explaining how transistors work.  At the heart of our high-tech society with radios, mobile phones, computers and space exploration are tiny electronic components called transistors.  They have revolutionised electronics and in the pr....

Using slow motion video Bill Hammack shows how the mechanical digital-to-analogue converter of IBM's revolutionary 'golf ball' typewriter works.

Jennifer talks about recent research detailing the effects of inbreeding on an isolated animal population and shows how this affects our ideas about breeding domestic animals.

Clive Oppenheimer, a vulcanologist working on the latest techniques to monitor and predict volcanic eruptions, demonstrates his work at Mount Etna, an active volcano in Sicily.nVolcanic eruptions pose a real threat to communities living nearby, and a....

A workshop in Chemistry at Old Trafford.

A brief introduction to getting over the problems of representing a sphere on a flat sheet.

Bill reveals the importance of matches in the 19th century; he shares how adding phosphorous to them revolutionized life - in both good and bad ways

A short clip showing the measurement of the speed of sound over short distances.