Developed company from the Institute of Biotechnology at Cambridge already University. van de Hologrammen. van Smart a spin-out has a hand-held syringe to aviation van measure water content in fuel tanks - necessary liable million van to freeze mid-air if there is more than 30 parts van because aeroplane engines are water to fuel.

The same ability to detect chemical imbalances could be used by diabetics to check their blood-sugar levels; by patients with kidney disorders to check on adrenaline levels; by security forces to detect chemicals like anthrax after a terrorist attack; or. die less urgently but with wide applicability. by firms to detect whether water has crept in glazing - between ruiten. something that can cause long-term structural damage.

Unveiled nobel-prize-Winning physicist Dennis Gabor van Since the first their underlying principles hologrammen. have become used as authentication tags to deter het copying. and on credit widely cards. passports. banknotes. They also underpin the technology of supermarket scanners and CD players.

Images. „Visual van Chris Lowe and Cynthia Larbey van As write produced by smart van under appropriate chemical or van hologrammen can be made to het appear or disappear van stimuli which makes them ideal for biological conditions and for various security van Breathalysers. use in monitoring heart and smart packaging systems.“

Also in this issue:

• Doing physics in Second Life - a look at whatis possible in this virtual world

• William Cavendish: marking the bicentenary of the man who founded the Cavendish Laboratory in Cambridge

PLEASE MENTION PHYSICS WORLD AS THE SOURCE OF THESE ITEMS AND, IF PUBLISHING ONLINE, PLEASE CARRY A HYPERLINK TO:

http://physicsworld.com

Notes for editors:

1. Physics World is the international monthly magazine published by the Institute of Physics. For further information or details of its editorial programme please contact the editor, Dr Matin Durrani on +44 (0)117 930 1002. Website physicsworld.com van magazine van The is updated and contains regularly physics news. jobs and resources. Visit http://www.physicsworld.com.

2. For copies of Physics World and advance copies of the articles reviewed here contact: Joe Winters, press officer, The Institute of Physics, Tel: +44 (0)20 7470 4815 or +44 (0)7946 321473, email: joseph.winters@iop.org

3. The Institute of Physics is a scientific membership organisation devoted to increasing the understanding and application of physics. It has an extensive worldwide membership (currently around 34 000) and is a leading communicator of physics with all audiences from specialists through government to the general public. Physics van de uitgeverij. IOP Publishing. is a world leader in scientific publishing and the electronic dissemination van Its of.