Category Archives: Points of Information

Closing out debate on climate

It appears that McCarthyism and the blacklist are both alive and well, thriving happily in the field of climate research. Key quote:

It is disturbing, to say the least, that organisations and persons who would be quick to claim professional status consider that it is their current duty to disparage, or to refuse to debate with, or to muzzle scientists whose views on climate change they apparently disagree with.

Read the whole article.

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Burt Rutan on future of space

At an airshow on Thursday, July 29, in Oskosh, Wisconsin, Burt Rutan, designer of SpaceShipOne, made some interesting remarks about the past and future of private space flight. Key quote:

Rutan said NASA should give 10 to 15 percent of its budget to new space companies like Elon Musk’s SpaceX without regulating how to spend the money. “That would allow them to not (have to) beg for commercial investment, while still working in an entrepreneurial mode.”

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Solar sail conference

Solar sail engineers from around the world gathered in Brooklyn last week for the Second International Symposium on Solar Sailing. Ben Diedrich, fellow caver, solar sail expert, and the man behind wiki.solarsails.info, gave two papers. He also emailed me to say that “Japan’s contingent gave several talks – many of which compared analysis of deployment, flight, or steering with actual flight data” of Ikaros. A review of the program [pdf] revealed some fascinating uses for solar sails. I like this paper title the best: “Deflecting Apophis with a flotilla of solar sails.” [ed. Apophis is an asteroid with the potential of hitting the Earth.]

Update: Japanese scientists have now announced that they have been able to adjust Ikaros’s attitude using sunlight.

Another update: Ben Diedrich emailed me the link to read the actual proceedings from the conference. See pg 103 to read the paper on using solar sails to deflect Apophis.

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