Have you ever wondered what a mummy smells like? According to research reported in the Journal of the American Chemical Society, it’s “woody,” “spicy,” and even “sweet.” Researchers analyzed the volatile compounds emitted from nine mummies spanning nearly 2000 years of Egyptian history and found that the scents still lingering today could tell us how the bodies were preserved — or how the person once lived — thousands of years ago.

Electronic textiles, such as heating pads and electric blankets, can keep the wearer warm and help ease aches and pains. However, prolonged use of these devices could cause heat-related illnesses, including hyperthermia or burns. Recently, a group of researchers designed and tested a “smart” jacket equipped with environmental sensors, heat-generating and color-changing yarns, and artificial intelligence (AI) to control temperature and prevent overheating. Their results are published in ACS Applied Materials & Interfaces. 

Combustion engines, the engines in gas-powered cars, only use a quarter of the fuel’s potential energy while the rest is lost as heat through exhaust. Now, a study published in ACS Applied Materials & Interfaces demonstrates how to convert exhaust heat into electricity. The researchers present a prototype thermoelectric generator system that could reduce fuel consumption and carbon dioxide emissions — an opportunity for improving sustainable energy initiatives in a rapidly changing world.