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Comment Questions questions questions (Score 4, Interesting) 103

For the sake of discussion, let's assume this report showed a problem orders of magnitude worse, and we were on the verge of Kessler syndrome conditions. What technologies exist today to combat the problem? (Yes, I know, no government today would unilaterally scrub space without a quid pro quo...)

If there are 19,000 trackable chunks of debris, how many untrackable (and just as deadly) small particles are there? I know that particle densities are minute. If we launched an array of satellites with Aerogel paneling, is it reasonable to expect a significant improvement in "air" quality up there?

What about that heat-ray device recently pulled our of Afghanistan? Can we launch one of those to spray microwaves tangentially to the Earth's surface? Would the heat applied to a paint-chip sized debris particle be enough to change the orbit? It doesn't take too much delta-v to alter the eccentricity of a paint fleck enough to burn up in orbit, does it?

(Less coffee, more sleep next time, methinks)

Comment Red light Cameras != Speed Cameras (Score 1) 567

I live in Phoenix, AZ where speed cameras were recently deactivated after two years of controversy. The same vendor, Redflex, was snapping pictures if you were driving 11+ mph over the limit.

However, Tempe and Scottsdale still have red-light cameras. I have no issue with red-light cameras, so long as common sense is used when reviewing tickets. TFA:

Although most were still violations of state law, they were considered very close calls or were due to such reasons as vehicles stopping a short distance over the stop bar that did not pose a traffic hazard, vehicles moving out of the way of an emergency vehicle, plates that were unidentifiable and weather related issues.

Speeders going 11-over when the rest of traffic drives 8-over aren't a public safety risk; red-light runners coming perpendicular to broadside traffic and kids in crosswalks are.

Sounds like a sudden outbreak of common sense. Ticket those red-light runners. I paid my ticket for getting there after the yellow; fair and square.

Google

Submission + - Google Voice Offering Invites

kevind23 writes: "I checked my email this evening to find that Google Voice, which has caught the attention of Slashdot several times, is now offering free registrations on an invite-only basis. Unfortunately, unlike Gmail, current users cannot send invitations to their friends (or other interested parties). Google Voice is currently available in the United States, with free domestic calling and SMS, as well as cheap international rates."

Comment Re:I beg to differ (Score 1) 81

I seem to remember a recent article describing the smell of space (http://spaceflight.nasa.gov/station/crew/exp6/spacechronicles4.html). The senses are completely bombarded with input which our brain ignores, for example the feel of your tongue on your teeth right now, or the weight of your shirt. Remove the background input, and the brain will interpret what is left and reported.

If space can have a smell, it can most certainly have a taste. It just might not be raspberry-flavored in our neck of the Milky Way.

User Journal

Journal Journal: ./ Journal #1

Journal Entry #1: I've not changed my /. sigfile in over 2 years. What's it to you?

Comment Re:EFF star anything (Score 1) 213

You, sir, may be trolling for some epic battle of 'teh flames' but your points are valid. Star Wars had the makings of an epic tale, if only G-Lucas could have contrived a coherent delivery. In its current form, it's been nothing more than the wet dream of a DND Magic Missile D20...with blasters and midichlori-something-or-others in the end.

Comment Re:If you can watch it on a computer (Score 3, Interesting) 225

Fortuantely for the parent, there is no -1, Wrong moderation option.

The cable companies do not encrypt the digital stream unless the channel is on a pay tier, or the content provider mandates it. My employer had been carrying ESPN HD, Discovery HD, History HD, and a few other national channels in the clear for almost a year. Contract renegotiations have come up, and those channels now must be encrypted for us to retain the rights to carry them. As a result, the cable co looks like the bad guy when we must tell our subs that they now must lease a converter box or CableCard to decrypt the channels we previously could send in the clear.

In regards to being forced into using the company's cable box, the FCC has mandated this to be illegal. Simply go down to your local electronics store and pickup a CableCard enabled converter...which according to the FCC, should be available nationwide. Oh wait...no manufacturer has started making them in the last 3 years. Go FCC! There's always TiVo, I suppose...
Math

Submission + - Should Wikipedia Allow Mathematical Proofs? (wikipedia.org) 4

Beetle B. writes: "An argument has arisen over whether Wikipedia should allow pages that provide proofs for mathematical theorems (such as this one).

On the one hand, Wikipedia is a useful source of information and people can benefit from these proofs. On the other hand, how does one choose which proofs to include and which not to? Should Wikipedia just become a textbook that teaches mathematics? Should it just state the bare results of theorems and not provide proofs (except as external links)? Or should they take an intermediate approach and formulate a criterion for which proofs to include and which to exclude?"

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