Question

Polyurethane is quite good for cold weather for jackets and blankets. However, thermal emergency blankets or space blankets are often made up of something similar to aluminum foil and used by astronauts to avoid hypothermia when stuck in subzero temperature. Why do you think it is a good choice?

• A. Thermal blankets reflect the body heat back, thereby trapping it inside
• B. Thermal blankets absorb heat from cold surroundings
• C. Thermal blankets don't work
• D. None of the above

Answer 1

The correct option is A Thermal blankets reflect the body heat back, thereby trapping it inside

'Aluminum foil like' thermal blankets are designed to reflect most of the radiation, or infrared radiation.

Also, they are shiny! This makes them easy to spot from helicopters etc, in case of rescue operations.

So, all in all, a must have for campers!