katasztrófa

Uni's voice.

cola_fpv

Not everything that behaves like a fluid is a liquid or a gas. In particular, groups of organisms can behave in a collective manner that is remarkably flow-like. From schools of fish to fire-ant rafts, nature is full of examples of groups with fluid-like properties. 

One of the most mesmerizing examples are these giant honeybee colonies, which essentially do “the wave” to frighten away predators like wasps. Researchers are still trying to understand and mimic the way these groups coordinate such behaviors. Can even complicated patterns be generated by a simple set of rules an individual animal follows? That’s the sort of question active matter researchers investigate. Check out the video above to see a whole cliff’s worth of bee colonies shimmering. (Image and video credit: BBC Earth)

Tossing a bit of dust into the vertical light pillar in Antelope Canyon.

majeczkyvisuals

WOLVES IN CENTRAL EUROPE

Thirty years ago, wolf populations in Central Europe were in a poor state.

For centuries the wolf had been villified and persecuted.

Then World War II came along, and in its aftermath, an Iron Curtain was drawn straight through the middle of the continent, impassable not just for man, but for beast as well. The few wolves which remained in Central Europe were confined to a handful of remote mountains in the Carpathians.

What happened next could possibly be one of the most spectacular instances of nature regaining a foothold in one of the most densely populated and industrialized parts of the world.

Mathematician Henry Segerman demonstrating how a linear third dimensional plane is only a projection of the curved fourth dimensional space time.