Why Do You Love Your Family?
Why do we love people we’re related to? Compared to strangers, why do we feel such a deep sense of connection with our family members? Sure, they’re nice to us, we take care of each other, and we often live with them, but there has to be a deeper biological reason. That reason, unsurprisingly is […]
History’s Most Powerful Plants
Fossil fuels are made from the remains of extinct organisms that have been exposed to millions of years of heat and pressure. But in the case of coal, these organisms consisted largely of some downright bizarre plants that once covered the Earth, from Colorado to China.
Black Hole Swarms | Space Time
It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.
From the Cambrian Explosion to the Great Dying
The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth’s history. With near constant revolutions in life, punctuated by catastrophic extinctions, it is also one of the most chaotic. Correction! At 9:19, we erroneously refer to Dimetrodon as an herbivore. It was definitely a carnivore. We […]
The ferocious predatory dinosaurs of Cretaceous Sahara – Nizar Ibrahim
In Cretaceous times (around 100 million years ago), North Africa was home to a huge river system and a bizarre menagerie of giant prehistoric predators — including the Spinosaurus, a dinosaur even more fearsome than the Tyrannosaurus rex. Nizar Ibrahim uses paleontological and geological data to reconstruct this “River of Giants” in surprising detail. Lesson […]
Why the insect brain is so incredible – Anna Stöckl
The human brain is one of the most sophisticated organs in the world, a supercomputer made of billions of neurons that control all of our senses, thoughts, and actions. But there was something Charles Darwin found even more impressive: the brain of an ant, which he called “one of the most marvelous atoms of matter […]
La industria tabacalera conocía las claves científicas de la adicción
Agencia SINC La industria tabacalera es consciente desde 1960 de la adicción que la nicotina provoca en el consumidor. Sin embargo, no fue hasta el año 2000, tras décadas de negación pública, cuando la compañía Philip Morris admitió que esta sustancia es uno de los principales factores causantes de la dependencia de los fumadores, tal […]
Río Santa Catarina: corredor biológico en el centro de Monterrey
MEC Gisela Aguilar Martínez Nacido en los cañones de La Huasteca y culminando en Cadereyta, entre las avenidas Constitución y Morones Prieto existen más de 300 especies y para muchos automovilistas eso pasa desapercibido: es el ecosistema que habita a lo largo de 45 kilómetros del Río Santa Catarina. Al momento de mencionar al Rio […]
Understanding Simulated Universes | StarTalk
Could we be living in a simulated universe? Brian Greene and Neil deGrasse Tyson discuss this possibility.
The Quantum Experiment that Broke Reality | Space Time | PBS Digital Studios
The double slit experiment radically changed the way we understand reality. To check out any of the lectures available from The Great Courses Plus go to http://ow.ly/QVaz302duhX and get ready to learn about everything from cooking to calculus.
Are Space and Time An Illusion? | Space Time | PBS Digital Studios
SPACE, TIME, AND THE NATURE OF REALITY. This episode of Space Time is actually about Spacetime, so pull up a chair, grab your favorite snack, and buckle up, because this episode is going to be a TRIP. Gabe explores what reality is, what «time» is, and why what you think those things are is probably […]
The Speed of Light is NOT About Light | Space Time | PBS Digital Studios
The speed of light is often cited as the fastest anything can travel in our universe. While this might be true, the speed of light is the EFFECT and not the CAUSE of this phenomenon. So what’s the cause? On this week’s episode of Space Time, Matt helps explain what the speed of light REALLY […]
Así sobrevivieron los neandertales en el centro de la Península
Agencia SINC Reconstruir los modos de vida de los humanos prehistóricos no es tarea fácil. El paso de miles de años reduce los antiguos asentamientos a poco más que restos de herramientas de piedra, huesos y huellas de hogueras y otras estructuras. No obstante, el estudio de los huesos de animales cazados por las sociedades […]
Using Stars to See Gravitational Waves | Space Time
Now that gravitational waves are definitely a thing, it’s time to think about some of the crazy things we can figure out with them. In some cases we’re going to need a gravitational wave observatory – in fact, we’ve already built one.