The brushes can be used for sweeping up nano-dust, painting microstructures and even cleaning up pollutants in water.
The bristles’ secret is carbon nanotubes, tiny straw-like molecules just 30 billionths of a metre across.
This is pretty cool, but it remain irritating that the prefix “nano” has come to mean the scale of the objects themselves, rather than the scale at which they are built. That’s why Eric Drexler had to abandon “nanotechnology” and come up with the phrase “molecular manufacturing” to represent his concepts for precise placement of atoms in building objects both small and large.
I just got an advance copy of the book in the mail. I don’t know when I’ll get around to reading it, though–it’s a big one. But it looks pretty good. Note that the only “review” at Amazon so far is an ad hominem attack by someone who obviously hasn’t even read the book yet. Appropriately, few found his “review” useful.
Glenn points to this article about battlefield use of high-storage-capacity videocameras.
I suspect that it won’t be long before people start having these installed in their cars to quickly resolve disputes in accidents. It would be particularly helpful against people who deliberately cause fender benders for insurance fraud. I’d think that the insurance industry would start offering discounts for people who have them, and that eventually they’d become factory equipment.
This week’s Carnival is up, over at The Speculist.
Also, Stephen Gordon has an interesting article on some breakthroughs in solar power, that could be revolutionary for the Third World. Solar thermal power, that is.
As genetic testing moves into the world of mental health, we are going to face some very tough questions. Will medicine suggest that any and every variation from absolute normalcy is pathological? How can we draw lines between disabling diseases such as severe autism and more mild differences such as Asperger
Some of them held up pretty well, and some of them didn’t really happen until the twenty-first century, and some haven’t panned out at all (like using electric currents to encourage plant growth, and the quiet cities). Slightly subsonic electric ships don’t seem likely to happen any time soon, and pneumatics came and went, being used only for niche applications. Still an interesting set of prognostications for the time.
[Update a few minutes later]
D’oh!
As Paul Dietz points out in comments, they’re only calling for ships that go a mile a minute. I was somehow thinking ten miles a minute (close to sonic velocity). Don’t ask why I was thinking that–I don’t know. Yes, sixty miles an hour is theoretically possible, but it’s high power consumption.