Rescue workers can use squeezing or compressing motions to generate energy for their flashlights through mechanically powered flashlights, often called "squeeze flashlights" or "dyno torches." These devices convert the kinetic energy from the user's muscle power into electrical energy without needing batteries or external power sources. How it works:
- The user repeatedly squeezes or compresses a handle or lever on the flashlight.
- This action spins a flywheel connected to a small generator or dynamo inside the flashlight.
- As the flywheel spins, it induces an electric current in a coil of wire via a magnet.
- The generated electricity powers an LED or incandescent bulb, producing light.
- A spring mechanism returns the handle to its original position after each squeeze, readying it for the next compression.
- Continuous squeezing keeps the flywheel spinning and the light on without interruption
This method is practical for rescue missions because it provides a reliable light source independent of batteries, which may run out or be unavailable. It is also environmentally friendly and always ready to use, making it ideal for emergency situations where power is lost or inaccessible
. In summary, rescue workers can power their flashlights by manually squeezing a handle that drives an internal generator, converting their physical effort into electrical energy to illuminate their surroundings during rescue operations.