entropy
oracknows | December 31, 2014She's baa-aack.
Remember Stephanie Seneff? When last Orac discussed her, she had been caught dumpster diving into the VAERS database in order to torture the data to make it confess a "link" between aluminum adjuvants in vaccines and acetaminophen and—you guessed it!—autism. It was a bad paper in a bad journal known as Entropy that I deconstructed in detail around two years ago. As I said at the time, I hadn't seen a "review" article that long and that badly done since the even more horrible article by Helen Ratajczak entitled Theoretical aspects of autism: Causes–A review (which, not…
milhayser | December 23, 2011
On Uncertain Principles, Chad Orzel counts down to—what else?—Isaac Newton's birthday. Opening a link on this advent calendar yields not a chocolate, but an equation and an important piece of the physics puzzle. For December 19th, we come to "one of the most revolutionary moment in the history of physics," Max Planck's "formula for the spectrum of the 'black-body' radiation emitted by a hot object at temperature T." Chad writes that Planck's initial mathematical trick became "the opening shot of the quantum mechanical revolution that completely changed physics." For the 18th, Chad delves…
rallain | May 2, 2009So, I am mowing the lawn. What to do better than thinking while I mow? Sometimes mowing is no fun. It is just a type of maintenance. How much of what we do is maintenance? I first thought about this when I was thinking about getting a new car. Wouldn't it be great if you didn't have to get the brakes changed or the tires rotated? I hate taking the car to the shop to get these things done (yes, if I was motivated I could do them myself). Here are some other maintenance things:
Mopping the floors
Paying bills
Keeping files organized on your computer
Brushing your teeth
How much of what…
rallain | March 6, 2009Temperature is a pretty weird thing if you think about it. How do you best define temperature? Let me go ahead and give you my favorite definition:
Temperature is the thing that two objects have in common when they have been in contact for a long time.
Yes, that is a good definition. Maybe now you can see why temperature is weird. Doesn't it have something to do with energy? Well, something - yes. Let me take an example. Suppose pour some hot coffee into a paper cup (I use paper because styrofoam(TM) is trademarked). Further suppose that this is super hot coffee from McDonald's. Can…
illconsidered | September 11, 2008This is just one of dozens of responses to common climate change denial arguments, which can all be found at How to Talk to a Climate Sceptic.Objection:
The so called "Greenhouse Effect" which is the underpinning of the entire theory of anthropogenic global warming claims that greenhouse gases in the upper atmosphere absorb outgoing long wave radiation from the surface and reradiate it back, thereby warming the climate. But the upper atmosphere is colder than the lower atmosphere and the surface and the second law of thermodynamics clearly requires that heat flow from warmer areas of a system…