We don’t live in a perfect world, and neither do gases – it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our culture) has unrealistic expectations when it comes to size and attraction: it assumes that particles do not have size at all and that they never attract each other. So the ideal gas “law” often becomes little more than the ideal gas estimate when it comes to what gases do naturally. But it’s a close enough estimate in enough situations that it’s very valuable to know. In this episode, Hank goes through a bunch of calculations according to the ideal gas law so you can get familiar with it.
Although it may sound crazy, many doctors use maggots today to clean wounds of dead and infected tissue. This process, called debridement, is important for preventing the spread of infection in a world of increasing antibiotic resistance. Hank has more details on the marvelous maggot in today’s episode of SciShow.
In a recent progress article in Nature Geoscience, this issue is tackled head on and here, in the inaugural NPG journal club, the worlds of Geoscience and Google+ met to discuss the article and this big climate question.
The classic film Deliverance immortalized the American tradition of canoes, river canyons, guitars and banjos—but less remembered from the film, and the novel that preceded it, is its very premise: Four men were out to see one of Appalachia’s last free-flowing rivers—the fictional Cahulawassee—months before a scheduled dam project forever disrupted its flow. This fate, or something [...]
Last December, when a private space exploration company named Golden Spikeannounced they are working to offer human expeditions to the Moon by 2020, they also said wanted to bring public along as an integral part of the company’s mission. Since their initial announcement, the Golden Spike team says they’ve been inundated with emails, letters and social media posts from people wanting to know how to take part, and how they could help speed the development of human lunar expeditions.
These strange blind eastern American Moles, helps find their food by smelling in stereo. They detect small differences in the strength of an odor between the two nostrils. Images © wikipedia According to a new study, blind Moles combine serial sampling with bilateral nasal cues to localize odorants, and find food. Professor of biological sciences at Vanderbilt University Kenneth Catania, [...]
Join David Wolfe on December16 for the live, interactive video course,“Raw Food and the Real World: How to Start a Rawvolution Every Day.” In this one-time-only Evolver Intensives webinar, you can have your issues addressed and your questions answered by one of the world’s top authorities on natural health, nutrition, herbalism, and organic superfoods. by [...]
This hard-hitting video from Mike Adams, the Health Ranger, reveals the dark side of science: Genocide, radiation experiments, human guinea pigs, eugenics, genetic pollution, terminator robots and more. This video reveals why humanity must STOP out-of-control “science” and honor the precautionary principle. END GMOs, toxic vaccine additives, biological weapons and other threats to humanity.
Alan Watts discussing the state of nothingness __download the audio file at the link below__ http://www.mediafire.com/file/pr3anig169pg6dq/Alan%20Watts%20discusses%20noth… MY MUSIC: http://soundcloud.com/david-martell I do not own the rights to the video clips and music used in this video. Music by : Goldmund -Threnody , Aphex Twin – Avril 14th
Every morning we wake up and regain consciousness — that is a marvelous fact — but what exactly is it that we regain? Neuroscientist Antonio Damasio uses this simple question to give us a glimpse into how our brains create our sense of self. TEDTalks is a daily video podcast of the best talks and [...]
THE UNIVERSITY OF WESTERN AUSTRALIA FRIDAY, 24 AUGUST 2012 Researchers from The University of Western Australia have examined what motivates people who are greatly involved in the climate debate to reject scientific evidence. The study Motivated Rejection of Science, to be published in Psychological Science, was designed to investigate what motivates the rejection of science [...]