Common Misunderstandings of Evolution: Part 1 While an open and honest debate is always a good thing, most of the time, when people are pointing out “problems” in evolution, their qualms arise from a misunderstanding of what evolution actually is and how the mechanisms of evolution actually function. Below are some of the most common misconceptions (or questions) in evolution and how science answers these concerns. Q1.) A.) In truth, evolution doesn’t explain anything about how life originated. How life originated is something completely different, called abiogenesis. Q2.) A.) This is, perhaps, the most well-known, as it is easily observed and demonstrated. In short, the organism is more “fit” for survival; this idea of “fitness” is central to natural selection. Q3.) A.) Evolution doesn’t really make a species better than its predecessors, it makes multiple species that are well suited for survival in their specific niche in the ecosystem at a specific period in time. Q4.) A.) Q5.) A.) READ NEXT: What’s Wrong With Evolution?
Raven paradox The raven paradox suggests that both of these images contribute evidence to the supposition that all ravens are black. The raven paradox, also known as Hempel's paradox or Hempel's ravens, is a paradox arising from the question of what constitutes evidence for a statement. Observing objects that are neither black nor ravens may formally increase the likelihood that all ravens are black – even though, intuitively, these observations are unrelated. The paradox[edit] Hempel describes the paradox in terms of the hypothesis:[2][3] (1) All ravens are black. In strict logical terms, via contraposition, this statement is equivalent to: (2) Everything that is not black is not a raven. It should be clear that in all circumstances where (2) is true, (1) is also true; and likewise, in all circumstances where (2) is false (i.e. if a world is imagined in which something that was not black, yet was a raven, existed), (1) is also false. (3) Nevermore, my pet raven, is black. Proposed resolutions[edit] is if . If
National Geographic Channel - Watch National Geographic Channel Videos - AOL Video Science Seat: You could have been a furry beast By Kelly Murray, CNN Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from many areas of scientific exploration. This is the sixth installment. As primates, humans were once furry, much like the modern chimpanzee. But when, and why, did we lose this fur and become "naked"? Nina Jablonski, professor of anthropology at Pennsylvania State University, studies primate evolution with an emphasis on human skin. CNN Light Years spoke with Jablonski about the evolution of human skin, from furry to naked. CNN’s Kelly Murray: Were humans ever furry like a modern chimpanzee, and how do we know? Jablonski: Yes. CNN: What did our fur look like? Jablonski: The most likely appearance of the fur is very much like modern chimpanzee fur: Uniformly dark, or black, over the body surface. Jablonski: I consider discussion of the loss of fur to be really foundational in any discussion of human skin. Jablonski: The human lineage evolved in Africa.
Nature Publishing Group : science journals, jobs, and information The 16 Best Western Movies Few figures in history have had as powerful an impact on American masculinity as the cowboy. For over a century, the cowboy has — for better or for worse — been a standard of rugged individualism and stoic bravery for the American male. While the mythologization of the American cowboy began all the way back in the 1880s with dime novels and Wild West shows, it wasn’t until the advent of twentieth century cinema that the cowboy cemented his place as an icon of manliness. The Western has been a popular genre of cinema since the very beginning of film, and successive generations of filmmakers have used the “Wild West” as a backdrop on which to explore the social issues of their respective eras. It isn’t until the 1930s that the Western became an avenue for telling stories with searching and hard-hitting messages. High Noon High Noon is film about being torn between duty and love and standing up for what you believe in, even when everyone else abandons you. Best line: “Don’t shove me Harv.
BIS TV Online : Nos offres de télévision sur PC Offre gratuite + 9 chaînes soit 16 chaînes Offre gratuite + 2 chaînes adultes soit 9 chaînes Offre gratuite + 3 chaînes ciné soit 10 chaînes AfricaboxTv est disponible uniquement à la carte. The Neurochemistry of Sex Healing with Sexual Energy By Walter Last Orgasm is generally regarded as the ultimate goal of recreational sex. Wilhelm Reich was the first scientist to describe the nature and purpose of the orgasm as a discharge of excess bio-energy with the additional liberation of feeling energy, and he also recognized the negative consequences of blocked sexual energies. Unfortunately, in addition to exciting peaks, orgasms tend to produce powerful negative side-effects that are only now becoming better understood. The main players are dopamine, the reward hormone; prolactin, the hormone of satiation; oxytocin, the cuddle hormone, and levels of androgen receptors, which all powerfully affect our mood, our desire for intimacy, our perception of our mate, as well as our susceptibility to addictive activities and substances. Additionally the stimulant phenylethylamine (PEA) is involved, which is also present in cocoa and chocolate and elevates energy, mood and attention. Dopamine Levels
NOVA Can Wind Turbines Make You Sick? Residents living in the shadows of wind turbines say the sound is making them sick. But so far the science isn't there. From NOVA Next | Jun 27, 2018 Thirty Years Ago Today, Global Warming First Made Headline News On June 23, a NASA climate scientist, James Hansen, told a U.S. From NOVA Next | Jun 23, 2018 New Middle Eastern Particle Accelerator’s Motto is “Science for Peace” In a region in turmoil, an unprecedented joint venture of scientists and policymakers is working together on Jordan’s new particle accelerator under the motto "science for peace." From NOVA Next | Jun 21, 2018 Psychological Damage Inflicted By Parent-Child Separation is Deep, Long-Lasting Here's what happens in the brain and the body when a child is forcibly separated from his or her parents.
Bottoms up! Part 1