Solipsism Gradient

Rainer Brockerhoff’s blog

Browsing Posts published by Rainer Brockerhoff

Emperor Norton I

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Andrew Zolli, in his guestblog on Boing boing, writes about Norton I, Emperor of the United States and Protector of Mexico (with photos and links):

Although few history books mention his name, in the mid-1800’s Joshua Abraham Norton proclaimed himself Norton I, Emperor of the United States and Protector of Mexico.

… Indulged by the local populace, Norton ate free in the best restaurants, which accepted his ‘currency’. During his reign, he issued a steady stream of proclamations, in which (among many other things) he abolished the Congress, called for the building of the Bay Bridge, and banished the F-word (“Frisco”) from polite speech.

Though a complete loon, he was beloved by San Franciscans during his time, and more than 30,000 people attended his funeral. Fittingly, no quote marks or other explanatory notes mark his epitaph.

Paper on weblogging

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Sébastien Paquet wrote “Personal knowledge publishing and its uses in research”, an excellent paper on weblogging.

Link courtesy of Der Schockwellenreiter.

Noted SF writer and physics professor Gregory Benford writes about what should come “Beyond the Shuttle”. (Excerpted on Brad deLong’s blog.) The article is also discussed on SlashDot.

Syndication news

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This weblog is now syndicated by Syndic8.

Also, NetNewsWire Pro now lists my RSS feed in its default sites drawer. Thanks, Brent!

Here’s an update to my previous post about this.

HighLift Systems has a proposal for a small-scale space elevator. Instead of a large-diameter (5 to 20 meters) full-scale beanstalk, they propose a 10-20 cm wide ribbon which would be only fractions of a millimeter thick. This is based on a NASA Institute for Advanced Concepts study.

This design would drive costs down into the $10-billion range – much less than what AOL/TimeWarner lost last year – and allow payloads of a few tons.

The ribbon would be 100,000 km long and weigh about 750,000 tons. There’s a FAQ which answers many questions about safety. For instance, the ribbon would wrap 2.5 times around the Equator if it fell down… but such a thin ribbon would be mostly evaporated during re-entry. Dana Blankenhorn elaborates further on problems and opportunities. However, Carey Gage, among others, makes the point that such a structure is presently impossible to defend.

Geek-o-meter

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Oops.

My rating on vnunet‘s Geek-o-meter is (tah-dah!) 97%.

Ooh, who’s a clever boy then? Or, increasingly (and eventually exclusively) who’s a clever girl then? You really are a geek, and you do know your stuff. You didn’t get fooled by those laughably easy questions. On the other hand, which did you get wrong? How very annoying. Now you’d better just go back and try it again (and again, and again), or you’ll never be able to rest easy. Obsessive idiot.

Yeah, right! What did I get wrong…?

Thanks to Simon Bruning’s Small Values of Cool for the link.

Rafael Fischmann, um dos donos/sócios/fundadores/responsáveis pelo excelente MacMagazine mudou para a Nova Zelândia para um programa de intercâmbio de um ano.

Para manter contato com os amigos, está publicando um blog com fotos e outras evidências do choque cultural. Claro que imediatamente contratou uma linha ADSL para poder continuar mantendo o MacMagazine no seu copioso tempo livre… realmente a geografia está ficando irrelevante!

Wired has an article about building a beanstalk. This means a structure reaching from someplace on the Equator right into geosynchronous orbit and beyond; depending on your point of view, this can be considered a tower, an elevator, or a cable. There are several proposals. Placing an asteroid into orbit and spinning out two cables – one inwards, one outwards – seems to be the most practical way. Elevators would go along the cable and lower the cost of getting stuff into and out of orbit to less than 1% of current levels.

The only material theoretically able to resist the enormous stresses and support its own weight is made of carbon nanotubes. Only in the past few weeks some researchers have been able to make longer strands of nanotubes (20 centimeters) in larger quantities, but a beanstalk would need billions of tons of meter-long nanotubes bound into a light but strong matrix. This kind of manufacturing may become possible over the next few decades.

As any SF reader knows, this sort of thing has been featured in several books. Arthur C. Clarke’s “The Fountains of Paradise” is the first I recall offhand. I’ll post a more comprehensive list later.

Kim Stanley Robinson’s “Red Mars”, “Green Mars” and “Blue Mars” go into much more detail about the technical and political aspects of building such a thing. But he also discusses the scary aspects: who will control the elevator? What if it’s brought down by terrorists?

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