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Monthly Archives: March 2010
Geekgasm
Popular Science Puts Entire Scanned Archive Online, Free
You can’t go directly to an issue to browse, but once you have arrived somewhere by search, there are no restrictions on scrolling around. You’ll also find a properly hyperlinked table of contents in each magazine.
I Hope You Like Yours Well-Done
Branch falls on some power lines
Oh, Ratfarts
Methane Releases From Arctic Shelf May Be Much Larger and Faster Than Anticipated
[T]he permafrost under the East Siberian Arctic Shelf, long thought to be an impermeable barrier sealing in methane, is perforated and is starting to leak large amounts of methane into the atmosphere. Release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming.
Spider Pig, Spider Pig
Dot Physics: Vacuum Spider-Man
Using a vacuum cleaner to lift things. Or a person. In this case, by creating a vacuum and utilizing atmospheric pressure, while previously, I had demonstrated lift using higher pressure (i.e. the blower) to hoverboard around.
Squeezing the Snake
That’s where snake oil comes from, right?
Infographic of the benefits of various supplements.
Snake Oil? Scientific evidence for popular health supplements
They claim this is all based on large human blind placebo-controlled studies, and here are those studies. I wonder, though, where do you get blind placebos?
The OJ Moment
The Attack on Climate-Change Science
Why It’s the O.J. Moment of the Twenty-First Century
Awesome post by Bill McKibben, embedded in another post, comparing the climate denialist tactics with those of OJ’s defense team, and why so many people are buying the argument.
If anything, they [the defense team] were actually helped by the mountain of evidence. If a haystack gets big enough, the odds only increase that there will be a few needles hidden inside. Whatever they managed to find, they made the most of: in closing arguments, for instance, Cochran compared Fuhrman to Adolf Hitler and called him “a genocidal racist, a perjurer, America’s worst nightmare, and the personification of evil.” His only real audience was the jury, many of whom had good reason to dislike the Los Angeles Police Department, but the team managed to instill considerable doubt in lots of Americans tuning in on TV as well. That’s what happens when you spend week after week dwelling on the cracks in a case, no matter how small they may be.
I also thought this was especially good:
Let’s look at Exxon Mobil, which each of the last three years has made more money than any company in the history of money. Its business model involves using the atmosphere as an open sewer for the carbon dioxide that is the inevitable byproduct of the fossil fuel it sells. And yet we let it do this for free. It doesn’t pay a red cent for potentially wrecking our world.
The feedback problem here is that since they have money, they can buy politicians, who are happy to conclude that global warming is a myth and confound legislation meant to rectify the situation.
Why the Science Media is Not Your Friend
Even though this is written in terms of climate science, it really applies in general to science and science reporting, but has added importance for any science that has political controversy attached to it — politics involves swaying public opinion, and that often doesn’t involve (indeed, often actively avoids) factual information.
Media thrives on controversy, which produces ratings and advertising revenue. As a result, it is structured into an ‘on the one hand, on the other hand’ binary argument. Any broadcast that pits a climate change skeptic against a serious climate scientist is automatically a win for the skeptic, since a false position is being given equal time and legitimacy.
This doesn’t have to be in the context of a debate — it is true in stories as well. Any story about how vaccinations don’t cause autism but included any response from Jenny McCarthy, was giving credence to a position that has no scientific support. This is playing out even now as the creationists try to adopt global warming as another cause, and attempt the balanced teaching/teach the controversy approach. Which, scientifically speaking, is insane, because schoolchildren aren’t in a position to decide what constitutes good science.
Science is a meritocracy, not a democracy. Crappy ideas, ones without the support of evidence, do not merit equal time in scientific discussions. You do not get free admission and a seat at the table — there’s a “you must be this tall” sign against which you must compare your evidence and methodology. The media need to learn this.
Now You Tell Me
Rolling out the (optical) carpet: the Talbot effect
Wish I could have read this when I was learning about the subject in grad school…
Ironic
Solder is a nice woody word, even though it contains tin. And for even more irony (and silvery), there is a new solder that contains iron and silver, and eliminates lead.
Magnetic solders are a leap towards green alternatives
By subjecting the solder to an alternating magnetic field, the solder can be selectively heated. This keeps surrounding materials at safe temperatures while melting only the solder itself.
…
[A]n external magnetic field can be used to remotely manipulate the solder, so it can be moved into hard-to-reach places, such as narrow vertical channels. This means that broken connections within devices can be “self-healed” by applying a magnetic field to melt the solder and attach the ends together.