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The Scale of the Universe 2

The Scale of the Universe 2

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The Effect of Cannabis on Pregnant Women & Newborns Pregnancy decisions like this should be discussed with a doctor. One of the numerous things pregnant women have to be concerned with is what goes into their bodies. No caffeine, no smoking, no alcohol, and traditionally, no marijuana either. But did you know that pregnant women in Jamaica have been known to use marijuana to relieve nausea, as well as some of the stress and depression that goes along with pregnancy? To be clear, they tend to use it in the form of a tea or a tonic; not smoking it. Melanie Dreher, a grad student in the late 1960’s, was chosen to perform an ethnographic study on the use of marijuana in Jamaica to document its usage and any possible consequences among pregnant women.

Temperature Anomalies is a search engine and API for public data. We find certain datasets to be especially powerful because the underlying phenomena they capture have such a fundamental impact on our world. Climate affects our agricultural production, the price of gasoline, the livelihood of small businesses or temporary farm workers, and ultimately the sustainability of our species on this planet. On March 31st, the Intergovernmental Panel on Climate Change released a report reaffirming the scientific community's consensus that the "worst is yet to come." The report projects the effects of climate change on society in the next decades, and questions for instance, the sustainability of our food supply.

List of paradoxes This is a list of paradoxes, grouped thematically. The grouping is approximate, as paradoxes may fit into more than one category. Because of varying definitions of the term paradox, some of the following are not considered to be paradoxes by everyone. This list collects only scenarios that have been called a paradox by at least one source and have their own article. Although considered paradoxes, some of these are based on fallacious reasoning, or incomplete/faulty analysis. 2D Polygon Collision Detection Introduction This article describes how to detect the collision between two moving (2D) polygons. It's not the first tutorial on the topic, however, the tutorials on the net tend to be a bit too complex for a relatively simple problem. The source codes I could find also had too many abbreviations that I don't get, or were crippled with C optimizations.

The Calendar & the Cloister: Oxford - St. John's College MS 17 Site Map and Navigation Enlarge Image Help Home The Manuscript Background Essays The Project Search Home Help The Present - Universal Truth - The Ultimate Truth A man should look for what is and not for what he thinks should be. Albert Einstein Truth you can check: It is as matter of fact as the ground and as useful as food. It's the kind of truth that can make hate and war as unnecessary as ignorance. Charles Darwin revealed how evolution works, but not what it really means. Evolution is no longer just a theory; it has been proven true beyond a reasonable doubt. Visualizing Algorithms The power of the unaided mind is highly overrated… The real powers come from devising external aids that enhance cognitive abilities. —Donald Norman Algorithms are a fascinating use case for visualization.

New Scientist Space Blog: What's beyond the edge of the observable Universe? You never get over the excitement of seeing your book in a bookshop. I'm one of those sad authors who even takes his books from the 5th-floor popular science ghetto, carries them furtively down several flights of stairs and surreptitiously slips them on top of the latest celeb biography (apologies to Posh and Becks - not to mention Borders). My new book is The never-ending days of being dead and it's my most ambitious yet. It's about the really big questions: What happened before the big bang?

Testing for Collisions Demonstrates how to use the BoundingSphere class to check whether two models are colliding. The code in the topic shows you the technique. You can download a complete code sample for this topic, including full source code and any additional supporting files required by the sample. To check whether two objects are colliding Track the position of a model as it moves about the game world. struct WorldObject { public Vector3 position; public Vector3 velocity; public Model model; public Texture2D texture2D; public Vector3 lastPosition; public void MoveForward() { lastPosition = position; position += velocity; } public void Backup() { position -= velocity; } public void ReverseVelocity() { velocity.X = -velocity.X; } } Make a nested loop with the first model's meshes as the outer loop and the second model's meshes as the inner loop.

From Defense to Desperation, Why There Is a Hidden World of Underground Cities Derinkuyu Underground City in Cappadocia, Turkey (photograph by Nevit Dilmen/Wikimedia) The history of underground cities is a complex and meandering one, ranging from the Ancient Era in the Middle East and Europe to those sunk during the height of Cold War paranoia, such as the bunker complexes of Cheyenne Mountain or Beijing's Underground City. There are also more recent underground cities, some of which are simply underground shopping centers or networks of tunneled roads, like those in Vancouver and Tokyo, as well as others which will begin to be built only in the future, due to the constraints of small islands and the opportunities for vast wealth, which are being considered in Singapore and in Hong Kong.

justenglish Source Image source Like this: The mathematically proven winning strategy for 14 of the most popular games (istock) From Risk to tic-tac-toe, popular games involve tons of strategic decisions, probability and math. So one happy consequence of being a data nerd is that you may have an advantage at something even non-data nerds understand: winning. So how do you win (almost) every game in existence, do you ask? Here are 20 data visualizations that offer lots of insight into the most popular games in America, including chess, Connect Four, Monopoly, Pac-Man, "Wheel of Fortune" and much more. Physicists To Test If Universe Is A Computer Simulation Physicists have devised a new experiment to test if the universe is a computer. A philosophical thought experiment has long held that it is more likely than not that we're living inside a machine. The theory basically goes that any civilisation which could evolve to a 'post-human' stage would almost certainly learn to run simulations on the scale of a universe. And that given the size of reality - billions of worlds, around billions of suns - it is fairly likely that if this is possible, it has already happened. And if it has? Well, then the statistical likelihood is that we're located somewhere in that chain of simulations within simulations.

Graphic in XAML and WPF Note This article was originally published on my Web site. All the text and code samples are identical. However, on my Web site you can also see the WPF and Silverlight samples in action.

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