compie's posterous

compie's posterous

compie  //  

Jan 20 / 2:31am

the precautionary principle

http://www.scientificamerican.com/article.cfm?id=can-you-hear-me-now

This application of the precautionary principle is the wrong mistake to make. Cell phones cannot cause cancer, because they do not emit enough energy to break the molecular bonds inside cells. Some forms of electromagnetic radiation, such as x-rays, gamma rays and ultraviolet (UV) radiation, are energetic enough to break the bonds in key molecules such as DNA and thereby generate mutations that lead to cancer. Electromagnetic radiation in the form of infrared light, microwaves, television and radio signals, and AC power is too weak to break those bonds, so we don’t worry about radios, televisions, microwave ovens and power outlets causing cancer.

Nov 25 / 4:43am

Trust Me, I'm a Scientist

http://www.scientificamerican.com/article.cfm?id=trust-me-im-a-scientist

"Humans do seem to prize accuracy above all. We want our beliefs to be
accurate—to align with what is really true about the world—and we know
that science is a reliable guide to accuracy. But this desire to be
accurate conflicts with other motives, some of them unconscious.
People hold beliefs to protect important values, for example.
Individuals who think of nature as sacred may perceive genetic
modification as morally wrong, regardless of its safety or utility.
People also hold beliefs that are rooted in their emotions. A flu
pandemic that can cause widespread death among the innocent may cause
feelings of fear and helplessness. One way to cope with those emotions
is to belittle warnings of a pandemic as improbable."

Nov 17 / 6:12am

Quora

http://www.wired.com/magazine/2011/04/ff_quora/all/1

“An answer isn’t written for the person who added the question,” as
D’Angelo puts it. “It’s written for the world, and for anyone who has
that same question for the rest of time.”

Nov 3 / 6:38am

less than 0.4% of strings can be compressed by one byte

http://mattmahoney.net/dc/dce.html#Section_11

In fact, the vast majority of strings cannot be compressed by very
much. The fraction of strings that can be compressed from n bits to m
bits is at most 2m - n. For example, less than 0.4% of strings can be
compressed by one byte.

Every compressor that can compress any input must also expand some of
its input. However, the expansion never needs to be more than one
symbol. Any compression algorithm can be modified by adding one bit to
indicate that the rest of the data is stored uncompressed.

Oct 21 / 4:25am

zo was Steve

http://www.geenstijl.nl/mt/archieven/2011/10/steve_jobs_dood_dankzij_altern.html

"Ben je de ultratechneut van deze planeet, ga je proberen een beetje
bijgelovig proberen je kanker weg te diëten met broccoli en de juiste
combinatie van aminozuren"


http://www.geenstijl.nl/mt/archieven/2011/10/steve_jobs_deed_sylia_millecam.html

"Maar zo was Steve. Knettergek tot in de laatste neuron van zijn
hersenen. Want Steve had Magical Thinking. Wat hij in zijn hoofd had,
gebeurde. Jammer genoeg dachten zowel die tumor als Android daar heel
anders over, want tegen Steve's wil in werden die allebei tóch groter.
Conclusie: Jobs was gewoon een idioot, like the rest of us."

Aug 29 / 1:47am

skeptical about ...

Skeptical about evolution?
http://www.talkorigins.org/indexcc/list.html#CB

Skeptical about climate change?
http://www.skepticalscience.com/argument.php

Skeptical about the fact that smoking causes cancer?
(I'm still looking for a link for this one... ;-)

Jul 24 / 11:55pm

Science suffers from faked sense of controversy

http://www.bitsofscience.org/science-news-controversy-2326/

"In order to improve public understanding, the weight of the science
coverage should be where the scientific consensus lies, not where a
potential for controversy can be found.

...

The report states ‘undue attention to marginal opinion’ has for
instance led to public misunderstandings about the risks of GM crops,
vaccination schemes and disbelieve that humans cause the Earth’s
climate to change – views that do not represent those of the majority
of scientists within respective disciplines."