A top scientist has invented super strong magnetic grippers. These allow a man to climb the outside of a steel tower. The magnetic grippers were funded by the military who wanted to be able to scale tall buildings unaided. The actual mission for which they were intended remains top secret! Outside of military life, the magnetic grippers could be used for inspecting bridges, climbing towers or checking off-shore oil wells.
Useful as an introduction to magnets and may lead to a discussion in which the children could be asked what things are attracted to magnets. What are these made of? This could lead to the children finding and testing items in their classroom that they think are magnetic. The children could make vehicles which they will power with the use of magnets and then race them.