29 SEP 2017 by ideonexus

 We Compile What We Read in the Context of When We Read It

Reading and experience train your model of the world. And even if you forget the experience or what you read, its effect on your model of the world persists. Your mind is like a compiled program you've lost the source of. It works, but you don't know why. [...] ...reading and experience are usually "compiled" at the time they happen, using the state of your brain at that time. The same book would get compiled differently at different points in your life. Which means it is very much worth re...
Folksonomies: reading memory worldview
Folksonomies: reading memory worldview
 1  1  notes
01 JAN 2012 by ideonexus

 The Parallax Method

It is possible to measure how far away from us each galaxy is. How? How, for that matter, do we know how far away anything in the universe is? For nearby stars the best method uses something called 'parallax'. Hold your finger up in front of your face and look at it with your left eye closed. Now open your left eye and close your right. Keep switching eyes, and you'll notice that the apparent position of your finger hops from side to side. That is because of the difference between the viewpoi...
Folksonomies: measurement parallax
Folksonomies: measurement parallax
  1  notes

Using the change in position of an object when viewed from two different points can be used to determine its distance from you.

04 JUN 2011 by ideonexus

 Carl Sagan on the Belief in God

I think it's impossible to be a scientist and to confront, even occassionally, the grandure, subtlety, elegance and magnificience of the universe without feeling a sense of reverence and awe, but that's very different from concluding that there's a god who issues punishments and rewards after your dead or that prayer works or that the bible is written by anybody but fallible human beings. [...] The word god is used to cover so many different points of view... First of all, you can be religi...
Folksonomies: religion atheism god
Folksonomies: religion atheism god
  1  notes

A very political commentary on the subject. Beautiful rhetorically.