Ep 91: The genetic algorithm

Ep 91: The genetic algorithm

The genetic algorithm Your DNA has most of the information needed to make you you. The information is encoded through four different chemicals that act as a sort of alphabet, spelling out the language of life. In the 1960/s a similar approach was adopted to solve complex problems. Here’s a tutorial on genetic algorithms and …

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Ep 90: Evolution strategies

Ep 90: Evolution strategies

Evolution strategies In 1963, a couple of students were working in a wind-tunnel, attempting to find a way to figure out how to design surfaces to produce a given airflow. That was, and still is, a difficult problem. There are no simple formula. They decided to see if they could use the power of evolution …

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Ep 89: How to make a mind—part4

Ep 89: How to make a mind—part4

How to make a mind—part4 It took our universe between 13 and 14 billion years to make minds like our own. It took our planet 4.54 billion years, and life between 3 and 4 billion. What if we took a process we know can produce minds, namely evolution, and simulated it. Maybe, if we could …

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ep 88: No species alone

ep 88: No species alone

No species alone Large complex multicellular life and simple single celled creatures have been evolving together. Each species requires an environment similar to the one in which it evolved in order to grow and develop normally. That includes the other creatures that have been evolving along with it. Today, we talk about how mice, deprived …

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Ep 87: The things you make me do

Ep 87: The things you make me do

The things you make me do It’s strange but true. A microscopic single celled organism can change the behavior of animals that it infects. From a snail that climbs instead of hiding below, to rabies, to a disease that causes rodents to lose their fear of cats; behavior can be changed by a sickness to …

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Build your own computer

Build your own computer

Next post in topic We’re fast approaching topics like evolutionary computation and artificial neural networks on the show. Unless something crops up that is just too interesting not to make an episode over, we should get started with that by episode 89. It has been a long time since I last considered these topics, and …

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Ep 86: Just not complete without you

Ep 86: Just not complete without you

Just not complete without you Symbiosis between animals and bacteria is very common. In some cases, animals will not develop fully without their microscopic partners—sometimes, they can’t even reproduce. Here’s a paper on the bobtail squid, and the light producing organ that doesn’t develop fully without the correct strain of bioluminescent bacteria. Bacterial symbionts induce …

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Ep 85: When your partner moves in

Ep 85: When your partner moves in

When your partner moves in Many life forms live in partnership with other organisms. The cooperative relationship is called symbiosis. Sometimes, one of the cooperating creatures lives inside of the other, even inside the cells. When one creature lives inside of another one that it cooperates with, it is called endosymbiosis. Today, we take a …

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