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Comment Survival rate under-estimated? (Score 4, Interesting) 239

If people who die in a wheel well always have their dead bodies discovered, while *some* of the people who survive a wheel-well journey don't -- they sneak out on the tarmac undetected -- then the survival rate of 25 percent must be an under-estimate, or at least is potentially an under-estimate.
NASA

Submission + - NASA considering moving GALEX astrophysics satellite to private ownership (spaceflightnow.com)

hogghogg writes: "The GALEX spacecraft (surveying the Universe in ultraviolet wavelengths at which the atmosphere is close to opaque) is coming to the end of its budget life, but it hasn't finished imaging the entire sky and is still (fairly) functional. A group at Caltech wants to keep it running, so NASA is considering transfer of ownership under the Stevenson-Wydler Technology Innovation Act which "allows the transfer of government-owned excess research equipment to educational institutions and non-profit organizations". Many NASA missions are terminated for budget reasons at the end of a prescribed period, even while the hardware is still highly functional. Although this is the first-ever transfer from NASA of a functioning satellite, maybe this is just the start for a class of privately run astronomical and Earth-observing facilities in space?"

Comment Re:Not really planets (Score 1) 181

Tch, they're not really planets, right? I mean, if they're not orbiting a star, then they can't have "cleared the neighborhood of their orbit". Yet one more reason the IAU's current definition is so idiotic. (Besides the fact that it suggests that Mercury is more like Jupiter than it is like Ceres.)

Yes, they are planets most likely, because they probably formed around a star and then got kicked out dynamically. This is expected generically in models of how solar systems form and evolve (in particular we think it happened multiple times in our own Solar System).

Comment generically expected; great if found (Score 4, Interesting) 181

Free-floating planets are generically expected: Essentially all models for how solar systems like ours (and the others we now know) involve dynamical interactions that would kick out planets at high velocity, leaving them unbound. Astronomers have expected to find these for decades, but have been unable to do so because a planet not warmed by a nearby star gets cold fast (hundreds of thousands to millions of years) and therefore invisible even in the infrared. This result is very important if correct, because gravitational lensing is an emission-insensitive way to find the planets. And yes, IAAA! (ps As for whether they are "spacecraft": I love that idea, but the "people" onboard probably wouldn't give the planet an impulse themselves (way, way, espensivo), they would make use of a free-floater passing by and hitch the ride.)

Comment Re:Poor solution (Score 5, Insightful) 470

Why adjust for solar time?

We adjust for solar time because UTC is an astronomical timescale, not a "count of seconds since a specific time." If "computer people" want a timescale that ignores leap seconds, they can use an atomic timescale like TAI (or GPS time, which is a constant offset from TAI). But choosing to standardize the internet on UTC and then complaining it is too hard to do the programming right is a little like buying a house next door to a turkey farm and complaining about the smell.

The Internet

Journal Journal: shouldn't we be paying for internet by the megabyte? 2

In the latest in a set of one-sided discussions with customers about how to deal with bandwidth diversity among users, some ISPs are deciding to put a hard limit on total download volume. Isn't a market in bytes the best way to encourage users and the sites from which they download to be conservative in their bandwidth use? In such a system, each megabyte would cost something, perhaps something that is a f
Security

Apple Closes iSight Security Hole 213

Gruber Duckie writes "Apple's security update 2006-008, posted yesterday, is a little more interesting than it sounds. According to information (and a demo!) posted at Macslash the "information leak" mentioned in Apple's advisory actually makes it possible for a web site to send whatever your (isight) web cam sees up to the server. I'm glad they fixed this quickly."
Biotech

Journal Journal: horse surgeon rocks

One thing I have learned in the last few weeks is that if I ever have a multi-million dollar race horse break his leg on the track, I am going to take him to this guy.
Robotics

Journal Journal: the human-robot love association?

Sherry Turkle, writing in the London Review of Books (paid subscription only; sorry), discusses the emotional connections between humans and robot-like machines, including furbys, tamagotchis, and therapeutic robots (for the lonely or isolated). She suggests that these relationships can plausibly approach something like "love" but that in the end they will probably modify our concept of what love is. Nice quotation, in re tamagotchi: "nur
Education

Journal Journal: do kids write programs any more? 1104

I keep finding myself in conversations with tertiary educators in the hard sciences (physics, astronomy, chemistry, etc) who note that even the geeks—those who voluntarily choose to major in hard sciences—enter university never having programmed a computer. When I was in grade six, the Commodore PET came out, and I jumped at the opportunity to learn how to program it! Now, evidently, most high school computer classes are about Word (tm) and Excel (tm). Is this a bad thing? Should

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