the big bang

Showing 6 posts tagged the big bang

From the team at Kurzgesagt, let’s explore what we know about The Beginning of Everything — The Big Bang:

Has the universe a beginning or was it here since forever? Well, evidence suggests that there was indeed a starting point to this universe we are part of right now. But how can this be? How can something come from nothing? And what about time? We don’t have all the answers yet so let’s talk about what we know. 

Previously on this site: Take a trip through The Solar System — our home in space, plus more about The Big Bang, including Carl Sagan’s cosmic calendar and the last five minutes of How the Universe Works: Extreme Stars.

Thanks, Philipp.

Imagine that the age of the universe, 13.82 billion years, is compressed into only one year. Carl Sagan explains this idea (using 15 billion years as his example) in a clip from his 1980 television series, Cosmos: A Personal Journey.

On this Cosmic Calendar, the Big Bang happens on January 1st at midnight, and we are at the end of the year, midnight on December 31st. Now look backwards: 

Down here, the first humans made their debut around 10:30 p.m. on December 31st. And with the passing of every cosmic minute — each minute 30,000 years long — we began the arduous journey towards understanding where we live and who we are.

11:46 - only 14 minutes ago, humans have tamed fire.

11:59:20 - the evening of the last day of the cosmic year — the 11th hour, the 59th minute, the 20th second — the domestication of plants and animals began, an application of the human talent for making tools.

11:59:35 - settled agricultural communities evolved into the first cities.

We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last minute of December 31st. In the vast ocean of time which this calendar represents, all our memories are confined to this small square.

Every person we’ve ever heard of lived somewhere in there. All those kings and battles, migrations and inventions, wars and loves. Everything in the history books happens here, in the last 10 seconds of the cosmic calendar.

More Carl Sagan in the archives, along with The Big Bang and, looking forward, Al Jarnow’s Cosmic Clock.

via @alexanderchen.

TodayTEDxCERN and TED-Ed have unveiled the first of 5 animated lessons specially developed by CERN scientists for TEDxCERN and brought to life by the talented animators at TED-Ed: “The beginning of the universe, for beginners.”

The lesson, which you can watch above(!) and at ed.ted.com, was conceived by CERN physicist Tom Whyntie and explains how cosmologists and particle physicists explore questions like, “How did the universe begin? How is it expanding?” by replicating the heat, energy, and activity of the first few seconds of our universe, right after the Big Bang.

via SaganSense.

Our Story in 1 Minute:

A tapestry of footage tracing the cosmic and biological origins of our species, set to original music

So so, so many related videos to dive further into these quick clips from MelodySheep. From the archives: the Big Bang, the moon, atoms, evolution, dinosaursnature, animals, culture, architecture, technology and space.

via @mamagotcha.