24 DEC 2016 by ideonexus

 Unlike Physics, Biology Can't Ignore Information

Physicists love to think about systems that take only a little information to describe. So when they get a system that takes a lot of information to describe, they use a trick called 'statistical mechanics', where you try to ignore most of this information and focus on a few especially important variables. For example, if you hand a physicist a box of gas, they'll try to avoid thinking about the state of each atom, and instead focus on a few macroscopic quantities like the volume and total en...
Folksonomies: physics biology information
Folksonomies: physics biology information
  1  notes
 
24 JAN 2015 by ideonexus

 Astrochicken

The basic idea of Astrochicken is that the spacecraft will be small and quick. I do not believe that a fruitful future for space science lies along the path we are now following, with space missions growing larger and larger and fewer and fewer and slower and slower as the decades go by. I propose a radical step in the direction of smallness and quickness. Astrochicken will weigh a kilogram instead of Voyager's ton, and it will travel from Earth into orbit around Uranus in two years instead ...
  1  notes
 
29 JUN 2011 by ideonexus

 Using Evolutionary History to Guide Us

Obtaining a more broadly informed view of parenting means examining parenting styles not just cross-culturally but through evolutionary history as well. Underneath the cultural twists that skew our behavior lies a natural biology, a human nature, that evolved a certain way for good biological reasons. Organic beings are, of course, subject to natural selection, and the path of evolution is not a perfect path. Contrary to popular belief, evolution does not select away all the defects and save ...
  1  notes

Natural selection is not a perfect sieve and we must remember that, as adaptable beings, we are born with the possibility of taking many different adaptive paths.