Scientists from Pohang University of Science and Technology in Korea have created a simple thermometer-like device that makes it easy to diagnose heart conditions.
To use the device, a sample of blood serum is placed in a vial along with a special solution. A chemical reaction follows, with the thermometer's ink rising to match up with numeric markers that allow users to find out what exactly is wrong with the heart.
Typically, doctors need to use bulky and expensive lab equipment to diagnose heart conditions; this sort of equipment is often not available in rural areas and underdeveloped parts of the world. The heart attack thermometer could save countless lives in these settings, and could also be used as an on-location diagnostic tool by first responders.