Recuerden, amigos, que odian la universidad no por lo que hacemos mal, sino por lo que hacemos bien. Odian que las públicas, con menos presupuesto, rankeen mejor que las privadas. Odian que tengan una voz que el mercado no controla. Odian que el hijo de un obrero pueda estudiar.
Boca Juniors ratifica su compromiso por mantener viva la memoria de los 30.000 desaparecidos que dejó la última dictadura militar en la Argentina.
A 50 años del golpe cívico-militar, decimos #NuncaMás
🚨The most disturbing physics demonstration in existence involves nothing more than two pendulums and a pin.
Here's why:
There's no electricity, or quantum effects or exotic materials or laboratory conditions. Just two rods, a joint connecting them, and gravity. Every force acting on this system is completely understood. The equations describing its motion were written centuries ago. Nothing about it is mysterious at the level of physics.
And yet predicting its motion beyond a few seconds is physically impossible.
A difference of 0.000001 degrees in the starting angle doesn't produce a small deviation downstream. It produces a completely unrelated trajectory. The system doesn't drift gradually from the prediction. It departs so violently that within moments the prediction becomes pure fiction.
Most people misunderstand chaos theory because the word chaos implies randomness. The double pendulum contains zero randomness. Every swing is fully governed by deterministic laws. A being with perfect knowledge of every starting condition could calculate every future position exactly. The problem is that perfect knowledge cannot exist in physical reality. Every measurement humans make carries some tolerance, however microscopic. That margin gets amplified exponentially each second until the gap between prediction and reality swallows everything whole.
The universe runs on math that outruns our ability to feed it accurate inputs.
What should genuinely disturb you is that the double pendulum is not a special case. The same sensitivity lives inside weather systems, economies, neural firing patterns, and ecosystems. Every complex system you depend on operates under identical conditions. Tiny upstream differences explode into massive downstream divergence with no warning and no recovery.
Philosophers spent centuries arguing about whether the future is predetermined. That was always the wrong argument. The double pendulum settled the only question that actually matters in daily life.
Determined and predictable are not the same thing. They never were.
Colectivos que no vienen, trenes que no vuelven, Uber que aprovecha. Algunas pistas para salir del laberinto.
Salió #UnaCalleMeSepara https://t.co/rCwXfBFciD