Julian Melchiorri, a graduate student from Royal College of art, claims to have fabricated the first ever man-made biological leaf which absorbs water & carbon dioxide, just like a leaf does, and produces oxygen.
It looks like a promising first step towards enabling longer distance space travel – in a way that the artificial leaf made by him could be used to supply oxygen in micro-gravity, in which terrestrial plants have a hard time growing.
The artificial leaf he made for his project involves extracted chloroplasts from plant cells laid on a matrix of silk protein.
The “first man-made biological leaf” could enable humans to colonise space from Dezeen on Vimeo.
Hugh Herr is an American rock climber, engineer, and biophysicist who lost both his limbs below the knee due to a bad climbing accident. He now heads the MIT Media Lab’s Biomechatronics group. In the following talk he talks and shows off an incredible new kind of prosthetic they’ve developed.
The guest appearance of Adrianne Haslet-Davis, a dancer who lost a limb in the 2013 Boston bombing, makes it so touching. Don’t miss that.
So, here Herr giving one of those greatest talks you’ve ever seen. It’ll makes you realize how science is bringing closer a glorious future. If we keep moving at this pace, soon there will be a day when there will really be no disabilities. That is all I want to say.
You are a doctor. A patient comes to you complaining of something and now you need to check his heartbeat. You plug the stethoscope in your ears and confidently move the probe to touch the chest of this patient, only to find that there is no heart beating inside that chest! In medical terms, isn’t this a dead man walking?
The answer is no, he is as alive as we are. Medical technology has made it possible for a man to live without a traditional beating heart. Two incredible doctors, Billy Cohn & Bud Frazier, in the year 2011, replaced Craig A. Lewis’s lifeless heart with a revolutionary artificial device – A device that can replace your heart and lets the blood flow continuously – without a beat. By all criteria that doctors use to analyse patients, Craig is dead.
Side note: Do read about that scientist who died and came back to life – [Is There a Scientific Explanation for Everything?]
There is no beating when it works. Through a stethoscope, a doctor would probably hear a continuous whistling of blood sluicing through synthetic pipes and motors (I’m not sure about that). The two doctors had been testing it on cattle and it was their only hope to save Craig’s life. So, they decided to do it – replace his heart with this revolutionary device.
Related article: A heart that runs on nuclear energy – [Nuclear powered pacemakers for the heart]
Yes, technically you could say Craig A. Lewis is a heartless guy, but this is a serious leap in medical technology we are talking about here.
You cannot miss this very-short BBC documentary – “Heart Stop Beating” – where both the doctors talk about how they did something that had never been done before. [Video]
Heart Stop Beating | Jeremiah Zagar from Focus Forward Films on Vimeo.