Sunday, July 25, 2010

AAPT Portland pics are posted

The AAPT's 2010 Summer Meeting in Portland was another sip from the fire hose. Much more to see and do than can be fit into the brief window of opportunity.

I used my new Fujifilm FinePix HS10 to grab a photo or two.

Most pics are from the High School Share-a-thon, the Gala Demo Show, and the Walking Tour of Portland.

2010 07 AAPT Portland Summer Meeting

Enjoy!

Tuesday, July 13, 2010

Creationists, GW denialists, truthers, birthers explained

When it comes to closely held beliefs, facts often don't matter. At all.

Research from The University of Michigan suggests that people generally cling to their personal beliefs despite facts that contradict those beliefs. Indeed, contradictory facts sometimes drive believers deeper into their unfounded beliefs. This is referred to as "backfire."

A recent column by John Trimmer eloquently described that "When science clashes with beliefs? Make science impotent."

One of my father's truisms was, "no one ever wins an argument." I hated that one when I was growing up because I loved to argue. To me it was intellectual sport, and I was better at debate than I was at kickball.

By high school, I knew my dad's wisdom was correct. But I justified my hobby another way. I knew I couldn't convince my opponent to change their mind. I argued for the sake of the bystanders. The pickup arguments in classrooms and hallways would often draw a small crowd of onlookers. They were not invested in the argument, so they didn't have to entrench. Their minds might have been open. It was the audience—not my opponent—I hoped to convince.

For other purposes however, the Michigan study reiterates the fact that arguing with a true believer bears no fruit. Often the believer is eager to argue. The act gives weight to their discredited theory.

And there simply is no factual evidence that will change their mind. None. Perhaps the best policy is to leave them by the side of the road as reality moves on. Let them wallow in their fairy tale as research moves forward. The only problem with that is that they populate school boards and state education commissions, where they can inculcate students far and wide.

At those organizational level fact-blind believers must be fought, lest your state becomes the next Texas or Kansas. But on a personal level, it's best to save your breath.

Thursday, July 08, 2010

The Amaz!ng Jump 2010

The Amazing Meeting 8 is coalescing. Attendees are arriving at the South Point. The Del Mar is filling with skeptics from around the world.

And I jumped out of a plane.



Beneath the jumpsuit? The Amaz!ng Jump 2010 T-shirt.

Sunday, June 27, 2010

Good solution or all wet?

From Britain's Orange:
A bus company in China has launched a new 'drive safely' campaign - by hanging big bowls of water next to their drivers.

The Longxiang Public Bus Company in Changsha, Hunan province, says drivers must drive gently to avoid spilling any water.

Bus drivers are expected to ensure the bowls are still full when they finish their shift, reports the Xiaoxiang Morning Post.

And the company warns drivers that CCTV footage will be studied to make sure they do not top up the bowls with water.

"Passengers often complain that sudden braking and bad driving makes them really uncomfortable on the buses," said a spokesman of the company.

"Hanging bowls of water in the driver's cab will discourage them from making any jolting starts, sudden braking or bad turns."
Is this a clever application of inertia and fluid dynamics? Or is it more show than go? (Notice the bowl is arranged as a pendulum rather than being fixed to the body of the bus. Curious.)

Friday, June 25, 2010

Equatorial star trails

Star trail shots are difficult to take but very groovy when they turn out well. I got one at Crater Lake years ago, and the current edition of Conceptual Physical Science Explorations has an awesome one on its cover. (Star trails over Mono Lake? It doesn't get any better than that.)

Or does it?

But I digress. Astrophotographer Stéphane Guisard recently made this image.


It was taken at high altitude in Ecuador using a wide angle lens. Northern and southern hemisphere night skies race across the 10-hour exposure. Even a bright meteor gets in on the fun.

Hat tip: The Bad Astronomer

Tuesday, June 22, 2010

A fan with no blades?

That crafty James Dyson reveals the physics behind his Air Multiplier.

I hope it doesn't offend anyone's Bernoulli sensibilities.



I know: one more thing we didn't invent. Sigh. We're not Knights of the Realm, either.

TAM8 update

The Amaz!ng Meeting 8 (TAM8) is July 8-11 at the South Point Hotel Casino Spa in Las Vegas. My addiction precludes my absence. The organizers provided an update today, and warned of an impending sell-out. This Mighty Wurlitzer appears to be recession-proof, getting more popular even as the economy flounders.

There will likely be over 1000 in attendance. Fewer than 200 attended TAM1 in 2003. There are reasons for my addiction, but I've blathered on about them before.

But I will reiterate this: The conditions under which I won't attend TAM are
1. I am dead and/or
2. There is no TAM.
Otherwise I will be there.

Saturday, June 19, 2010

Fantasy Football viral videos are... fantasy!

So says Captain Disillusion. And he doesn't just say so, he shows how the video trickery was done.

He's quite good at this. See for yourself:



I look forward to seeing him soon at The Amaz!ng Meeting 8.