Ein Feed, durch den es sich zu scrollen lohnt.

🌍

Hydrogen escaping into space may have helped oxygenate Earth

Ultraviolet light broke methane in Earth's early atmosphere apart. Some of the hydrogen could then escape into space. Losing hydrogen may have left the planet more chemically ready for oxygen to build up in the atmosphere.

Etwas anderes →

🚢

Ships broke the relay chain of overland trade

Goods moving over land often passed from one group of traders to another many times. Ships could carry much larger loads directly between distant ports and sometimes avoid political trouble on land. Sea trade therefore reduced the number of middlemen between distant buyers and sellers.

Weiter →

Bioluminescence becomes much more common in the deep ocean

2.5% near coasts vs 76% in the deep eastern Pacific

Only about 2.5% of organisms in coastal ocean habitats are estimated to make their own light. In the deep eastern Pacific, about 76% of the main animal groups include light-producing species.

Weiter →

The 2008 financial crisis included a bank run without people lining up at banks

Traditional bank runs happen when depositors rush to withdraw cash. In 2008, a similar panic spread through short-term wholesale funding markets. Financial institutions stopped renewing loans or demanded more collateral, forcing borrowers to sell assets quickly. The run happened largely between firms rather than at bank counters.

Weiter →

The brain uses far more energy than its size suggests

~20% of body oxygen use · ~25% of body glucose use

The human brain makes up only about 2% of body weight, yet it uses about 20% of the body's oxygen and about 25% of its glucose.

Weiter →