Herds of gelada monkeys in Ethiopia are unfazed by wolves wandering through to hunt rodents, but is one domesticating the other just as humans did with dogs?
A controversial observation suggests that a constant of physics actually varies in space – it could explain why our corner of the cosmos is just right for life
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Florence Nightingale: The passionate statistician
She pioneered the use of applied statistics to develop policy and developed novel ways of displaying them.
By Julie Rehmeyer
Web edition : Wednesday, November 26th, 200
Der Effekt ist allerdings durch Entfernung und Zeit begrenzt. Nach einem Jahr ist er nicht mehr zu bemerken - und er nimmt mit der Entfernung ab. Deshalb profitieren auch nur die direkten Nachbarn, nicht aber die ein paar Straßen weiter. Während die Menschen in der Studie im Mittel über sechs Stationen miteinander verbunden waren, erstreckt sich der Einfluss des Glücks nur über drei Stationen. Das ist gar nicht mal ausgesprochen schade, denn anderenfalls würden wir über den Rückkopplungseffekt quasi zum Dauerglück gezwungen. Das liegt daran, dass Unglück offenbar weit weniger ansteckend ist: jeder unglückliche Freund reduziert die Glückschance eines Individuums nur um sieben Prozent. Tatsache ist allerdings, dass Menschen im Zentrum des sozialen Netzwerks, also solche mit vielen Freunden, im Regelfall glücklicher als andere sind. Popularität ist also ebenfalls ein Glücksfaktor.
TED (Technology, Entertainment, Design) is an invitation-only event where the world's leading thinkers and doers gather to find inspiration. Initially an annual conference, the scope of TED has expanded to include a bi-annual global conference, a humanitarian prize, and free audio/video podcasts of extraordinary talks.
A mood of deep pessimism has spread among the international community of AIDS scientists after the failure of a trial of a promising vaccine at the end of last year.
"Our interests extend to the wondrous, the curious, the singular, the esoteric, the arcane, and the sometimes hazy frontier between the plausible and the implausible." a whacky collection