18 MAY 2012 by ideonexus
Averages are Boring
The Charms of Statistics.—It is difficult to understand why statisticians commonly limit their inquiries to Averages, and do not revel in more comprehensive views. Their souls seem as dull to the charm of variety as that of the native of one of our flat English counties, whose retrospect of Switzerland was that, if its mountains could be thrown into its lakes, two nuisances would be got rid of at once. An Average is but a solitary fact, whereas if a single other fact be added to it, an enti...Folksonomies: statistics
Folksonomies: statistics
Statisticians should be interested in more complex and beautiful things.
04 JAN 2012 by ideonexus
A Very Qualified Statement on Experimenting on Patients
I think it perfectly just, that he who, from the love of experiment, quits an approved for an uncertain practice, should suffer the full penalty of Egyptian law against medical innovation; as I would consign to the pillory, the wretch, who out of regard to his character, that is, to his fees, should follow the routine, when, from constant experience he is sure that his patient will die under it, provided any, not inhuman, deviation would give his patient a chance.Folksonomies: experimentation human experimentation
Folksonomies: experimentation human experimentation
Dr. Thomas Beddoes condemns experiments for the sake of experiments, but appears to leave an opening for humane deviations from treatments where the doctor knows from repeated experience that the treatment does not work.
20 SEP 2011 by ideonexus
Evolution of the Eye
A possible sequence of such changes begins with simple eyespots made of light-sensitive pigment, as seen in flatworms. The skin then folds in, forming a cup that protects the eyespot and allows it to better localize the light source. Limpets have eyes like this. In the chambered nautilus, we see a further narrowing of the cup’s opening to produce an improved image, and in ragworms the cup is capped by a protective transparent cover to protect the opening. In abalones, part of the fluid in t...A simple series of adaptive steps explain the evolution of eyes over time.
07 JUL 2011 by ideonexus
Babies Don't Remember How They Learned Things
Alison has done other experiments that point in a similar direction. For example, three-year-olds seem to be unable to remember how they learned about something, even when the events took place only a few moments before. In one study the experimenter hid a cup under a cloth "tunnel," a wire arch covered with cloth, with an opening at either end. Children found out what was underneath the tunnel in one of three ways: they picked up the tunnel and saw the cup, they put their hands in the tunnel...Around the age of three, children are unable to explain how they learned things, calling into question their testimony in legal cases since their memories can be implanted without knowing their origin.
18 APR 2011 by ideonexus
The Growth of Taxonomy in the Scientific Revolution
Taxonomy was the biology of the scientific revolution. The opening up of the New World and the Far East provided European scientists with thousands of new species to examine and classify. Establishing botanical gardens, menageries and 'cabinets' of minerals, preserved animal specimens and dried plants were favourite hobbies amongst wealthy collectors. And since the natural sciences were not yet fully recognised by university faculties, these studies remained in the hands of amateurs. Of 48 na...Folksonomies: science history
Folksonomies: science history
Many women became botonists and entomologist during this time.