27 NOV 2018 by ideonexus
Emotional Contagions in Social Networks
These results highlight several features of emotional contagion. First, because News Feed content is not “directed” toward anyone, contagion could not be just the result of some specific interaction with a happy or sad partner. Although prior research examined whether an emotion can be contracted via a direct interaction (1, 7), we show that simply failing to “overhear” a friend’s emotional expression via Facebook is enough to buffer one from its effects. Second, although nonverbal ... 1 
notes
notes02 SEP 2016 by ideonexus
Effects of Good Teachers on Student Outcomes
These findings would suggest that the difference in achievement gains between having a 25th percentile teacher (a not so effective teacher) and a 75th percentile teacher (an effective teacher) is over one-third of a standard deviation (0.35) in reading and almost half a standard deviation (0.48) in mathematics. Similarly, the difference in achievement gains between having a 50th percentile teacher (an average teacher) and a 90th percentile teacher (a very effective teacher) is about one-third... 1 notes
notes29 MAY 2014 by ideonexus
Sages VS Astrologers
Someone asked whether a sage could make divination. [Yang Hsiung] replied that a sage could certainly make divination about Heaven and Earth. If that is so, continued the questioner, what is the difference between the sage and the astrologer (shih)l [Yang Hsiung] replied, 'The astrologer foretells what the effects of heavenly phenomena will be on man; the sage foretells what the effects of man's actions will be on the heavens'. Folksonomies: history perspective
Folksonomies: history perspective
1 notes
notesFa Yen (Model Discourses) ca 5 AD. Transi J Needham Science and Civilization in China 1956
Yang Hsiung 51 bc-ad 18
13 MAR 2014 by ideonexus
Giordano Bruno Observations of the Sun
The meaning is the more excellence, as it is the less vulgar, and you will see that it is single, unified, and not strained. You must consider that although the sun appears different with respect to different regions of the earth according to time and place, nevertheless with respect to the entire globe it acts always and everywhere in the same way, for in whatever point of the ecliptic it may find itself, it causes winter, summer, autumn, and spring, and the entire earthly globe receives the... 1 notes
notes...and it's effects on the Earth.
21 JUN 2013 by ideonexus
The NDEA had Broad Benefits, but Unquantifiable Benefits
The four NDEA Titles featured in this report contributed to general upward trends (e.g., in the rate of high school, college, and graduate completion; in the level of student preparedness in science, mathematics, and modern languages; in the number of teachers and degree-granting institutions; in the number of bachelors and doctoral degrees awarded; and in the number of scholarly publications by doctoral recipients) during the years that they were in force. Their provisions also contributed t...Folksonomies: quantification public policy
Folksonomies: quantification public policy
1 notes
notesThe National Defense Education Act improved science, technology, and college enrollment in the US, but its effects cannot be separated from the broader forces and trends going on during the time it was implemented. Future public policies intended to boost STEM must be implemented in such a way as to make their effects quantifiable.
21 JUN 2012 by ideonexus
Hell for Scientists
I had at one time a very bad fever of which I almost died. In my fever I had a long consistent delirium. I dreamt that I was in Hell, and that Hell is a place full of all those happenings that are improbable but not impossible. The effects of this are curious. Some of the damned, when they first arrive below, imagine that they will beguile the tedium of eternity by games of cards. But they find this impossible, because, whenever a pack is shuffled, it comes out in perfect order, beginning wit... 1 notes
notesIs a place where the improbable occurs everywhere.
21 JUN 2012 by ideonexus
Conception of Time
We never really see time. We see only clocks. If you say this object moves, what you really mean is that this object is here when the hand of your clock is here, and so on. We say we measure time with clocks, but we see only the hands of the clocks, not time itself. And the hands of a clock are a physical variable like any other. So in a sense we cheat because what we really observe are physical variables as a function of other physical variables, but we represent that as if everything is evo...Folksonomies: time
Folksonomies: time
1 notes
notesWe do not see time, we only see its effects.
18 MAY 2012 by ideonexus
Galileo on Empiricism
If experiments are performed thousands of times at all seasons and in every place without once producing the effects mentioned by your philosophers, poets, and historians, this will mean nothing and we must believe their words rather our own eyes? But what if I find for you a state of the air that has all the conditions you say are required, and still the egg is not cooked nor the lead ball destroyed? Alas! I should be wasting my efforts... for all too prudently you have secured your position...Folksonomies: philosophy empiricism
Folksonomies: philosophy empiricism
1 notes
notesLamenting the fact that if something philosophy asserts cannot be observed in nature, then why not abandon it?
18 MAR 2012 by ideonexus
Nuclear Winter
In discussing the state of the atmosphere following a nuclear exchange, we point especially to the effects of the many fires that would be ignited by the thousands of nuclear explosions in cities, forests, agricultural fields, and oil and gas fields. As a result of these fires, the loading of the atmosphere with strongly light absorbing particles in the submicron size range (1 micron = 10-6 m) would increase so much that at noon solar radiation at the ground would be reduced by at least a fac...Folksonomies: environmentalism
Folksonomies: environmentalism
1 notes
notesAn explanation of the science behind this concept and the back-of-the-napkin calculation.
18 JAN 2012 by ideonexus
Chemistry is a Science of Pure Experimentation
For chemistry is no science form'd à priori; 'tis no production of the human mind, framed by reasoning and deduction: it took its rise from a number of experiments casually made, without any expectation of what follow'd; and was only reduced into an art or system, by collecting and comparing the effects of such unpremeditated experiments, and observing the uniform tendency thereof. So far, then, as a number of experimenters agree to establish any undoubted truth; so far they may be consider'...Folksonomies: chemistry experimentation
Folksonomies: chemistry experimentation
1 notes
notesIt's knowledge was built up without reasoning, but purely through testing.
