Andrew Pelling is a biohacker, and nature is his hardware. His favorite materials are the simplest ones (and oftentimes he finds them in the garbage). Building on the cellulose structure that gives an apple its shape, he “grows” lifelike human ears, pioneering a process that might someday be used to repair body parts safely and cheaply. And he has some even wilder ideas to share … “What I’m really curious about is if one day it will be possible to repair, rebuild and augment our own bodies with stuff we make in the kitchen,” he says.
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Can we see things travelling faster than light?
Check out Audible: http://bit.ly/AudibleVe
Music by Amarante “One Last Thing” http://bit.ly/VeAmarante
Awesome animations by http://youtube.com/minutephysics
Thanks to Prof. Geraint Lewis for input on earlier drafts of this video.
The expanding universe is a complicated place. During inflation the universe expanded faster than light, but that’s something that actually happens all the time, it’s happening right now. This doesn’t violate Einstein’s theory of relativity since nothing is moving through space faster than light, it’s just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they aren’t. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere – it’s limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it.
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
Produced by PBS Digital Studios
Music via APM
Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
In a CSI age, we take forensic science for granted. New York did not have a medical examiner or forensic toxicologist until 1918, whose eventual arrival changed the landscape of crime investigation forever. At TEDYouth 2012, Deborah Blum prompts the audience to solve crimes with chemistry.
Talk by Deborah Blum.
The Perimeter Institute has put together a series of photos showing the physics behind Olympic events. Go to the Source below to find out more
Source: The science of sport: Perimeter Institute explains the physics of Olympic events – Kitchener-Waterloo – CBC News
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 is and why it’s the cosmic speed limit of our universe!
“The Real Meaning of E=mc²”:
“Are Space And Time An Illusion?”: