How the keystone “motif” is used in contexts other than construction (e.g. Penn state logo)
http://www.americanscientist.org/issues/pub/overarching-problems November-December 2012
Volume 100, Number 6
Page: 458
DOI: 10.1511/2012.99.458
Overarching Problems
Keystones, whether employed to complete an arch or as a metaphor, require care in their use
Henry Petroski
2012 econ nobel for creating efficient markets & prices where none existed
http://www.economist.com/news/finance-and-economics/21564836-alvin-roth-and-lloyd-shapley-have-won-year%E2%80%99s-nobel-economics
Why loud jazz is bad.
See
http://www.time.com/time/health/article/0,8599,1881130,00.html
More detail at:
http://www.noisehelp.com/ipod-hearing-loss.html
| Volume Level | Maximum Listening Time per Day |
|---|---|
| 50% or below | No limit |
| 60% | 18 hours |
| 70% | 4.6 hours |
| 80% | 1.2 hours |
| 90% | 18 minutes |
| 100% | 5 minutes |
add 10% to vol. level for headphones
Good discussion of lots of technical stuff, including regions of the brain, how nerves work, & artificial neural nets
http://www.amazon.com/Brain-Very-Short-Introduction/dp/B002KE9BPO/ref=sr_1_1?s=books&ie=UTF8&qid=1352690693&sr=1-1&keywords=The+Brain%3A+A+Very+Short+Introduction+%28Unabridged%29
How we can vote like a quantum superposition
http://www.scientificamerican.com/article.cfm?id=humans-think-like-quantum-particles