Nursing and care homes constantly struggle with providing evidence of regular checks on the elderly to check they are alive. My idea is to create a barcode that fades if the body becomes cold.
This would allow a carer to scan the individual and provide a record of these checks. If the person has died the barcode will not be visible and thus the carer will not be able to successfully scan the individual.
By Richard Gilliard, Leeds, UK
You can purchase a bar code scanner from Amazon by clicking on the image below! (affiliate link)