Science And Society

Uncertainty, Global Warming, and public policy

Another item in the latest Industrial Physicist is a piece on understanding the uncertainties in global warming models, and the public policy implications of those uncertainties. It’s well worth a read if you care about global warming in particular or science and public policy in general.

One of the hardest things about ensuring that public policy is based on sound science is that sound science inherently involves uncertainties. Politicians like yes or no answers, but science only gives really reliable answers in the very long term, far longer than the relevant political timescales. In order to make policy based on sound science, politicians have to take uncertainty into account, and allow for the possibility that the policies may need to be adjusted as new information becomes available.

Space

Scramjets

There’s a fairly in depth look at scramjets in the latest edition of The Industrial Physicist. It’s got enough meat on it to be worth reading, though I have a visceral dislike of scramjets. It’s nothing to do with the technical merits – it’s just that they are yet another technology that’s constantly being held out as the technical breakthrough needed to bring down launch costs. Someday I suspect scramjet powered vehicles (at least missiles) will be practical. In the meantime they are a kind of interesting technology that’s worth understanding just for curiousity’s sake.

Incidentally, I’m not singling out scramjets here – space elevators also trigger my “here we go again” reaction. Ditto electromagnetic accelerators.

War Commentary

Still Hope For Iraq

Despite the church bombings this weekend.

Ayatollah al-Sistani has condemned them:

Iraq’s top Shiite Muslim cleric condemned as “hideous crimes” the coordinated bomb attacks on five churches in Baghdad and Mosul that killed at least seven people and marked the insurgency’s first major attacks on Iraq’s minority Christians.

Grand Ayatollah Ali al-Husseini al-Sistani said in a statement that Sunday’s assaults on churches “targeted Iraq’s unity, stability and independence…”

“…We assert the importance of respecting the rights of Christian civilians and other religious minorities and reaffirm their right to live in their home country Iraq in security and peace.”

It looks like he understands the problem. Amazingly, even Mooky al-Sadr’s guy got into the act:

“This is a cowardly act and targets all Iraqis,” Abdul Hadi al-Daraji, spokesman for radical Shiite cleric Muqtada al-Sadr, told Al-Jazeera television.

Unfortunately, I’ll bet we won’t be hearing this from the imams across the border in Iran, or from the loony bins that are many of the mosques in Saudi Arabia. This is why Iraq is so fundamental in the war on the fundamentalists.

Space

Who is Jeff Bezos?

Fast Company has an article on Jeff Bezos, famous as the founder of Blue Origin – apparently he’s also been involved in some wacky scheme to sell stuff on the Internet. Who Knew?

Anyway, the article has some of the usual business ‘zine puff piece aspect to it, but it’s fairly in depth, so worth a read if you’d like to get a sense of the man. He comes off fairly well, even allowing for the reporter’s need to be nice in order to maintain access. I’m encouraged that he’ll push Blue Origin towards a successful business model, and he seems willing to spend real money up front before seeing returns, which is probably a necessity in the suborbital launch services industry.

The two really deep pocketed players in the industry are Bezos and Allen. Of the two I suspect that Bezos has the better approach to business (based on little information, unfortunately). The article suggests that his business orientation places a premium on customer service, which I’d always thought was sort of the obvious thing to do until I started paying attention to the way many businesses actually work.

Biting Commentary about Infinity…and Beyond!