Lake Superior cold bodies resurfacing decomposition

Lake Superior is so cold that some bodies never resurface

In many lakes, gases produced during decomposition eventually make submerged bodies float. Lake Superior's exceptionally cold deep water slows bacterial activity and gas production. As a result, some bodies remain underwater instead of resurfacing. Temperature can determine what happens long after someone disappears beneath the surface.

Poland’s resistance ran universities in secret

The Polish Home Army was a resistance movement that operated secretly in occupied Poland during World War II. It maintained universities that awarded degrees, as well as a court system.

The photographic negative made pictures reproducible

Early daguerreotypes produced detailed photographs, but each image was essentially unique. William Henry Fox Talbot developed a process that created a negative from which multiple positive prints could be made. Instead of capturing a scene only once, photographers could reproduce it repeatedly. The negative-positive principle became fundamental to film photography.

Like this? There’s a whole feed of it. Replace empty scrolling with things worth knowing.

Download Hence for free

Lake Superior cold bodies resurfacing decomposition

Lake Superior is so cold that some bodies never resurface

Keep exploring