Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment: Re:Would a smaller plane do? (Score 1) 293

by Strider- (#48937217) Attached to: US Air Force Selects Boeing 747-8 To Replace Air Force One

This seems like an obvious question but why does one guy and his staff need a more than 400 passenger plane?

Technically speaking? He probably doesn't, but that doesn't really matter. Like it or not, the VC-25 is part of the image that the presidency presents to the rest of the world. If you want to present an image of strength and the supremacy of the American Ideal, showing up in a European aircraft is not the way to do it. Also, showing up in a smaller aircraft (787 or 777) doesn't help either. Like it or not, it's partially dick waving, and the 747-800i is really the only choice.

Comment: Re:"Broadband" is a stupid name (Score 1) 428

by Strider- (#48933745) Attached to: FCC Officially Approves Change In the Definition of Broadband

Same reason they call it a a DSL or cable modem, despite the fact that nothing is being modulated or demodulated.

Where did you get this idea? Both Cable and DSL modems are in fact modems. In the case of cable modems, the data is carried in a set of 6MHz channels (Same bandwidth as analog TV) at various frequencies on the cable. The data being sent over these channels is encoded with QAM (typically QAM-256) and contains a certain amount of Forward Error Correction (to compensate for noise in the line). Thus, your cable modem demodulates these carriers and sends the data out over the ethernet jack, and conversely modulates the outbound data from your system into a TDMA (IIRC) uplink.

With DSL, the spectrum on the phone line is divided into hundreds of subcarriers, and the data sent/received is divided over all of these subcarriers (thus allowing the system to compensate for weirdness that occurs on phone lines).

Comment: Re:"Broadband" is a stupid name (Score 4, Insightful) 428

by Strider- (#48933215) Attached to: FCC Officially Approves Change In the Definition of Broadband

Broadband is a description of the technology, not of bandwidth.

Well, to be pedantic, "Broadband" and "Bandwidth" are descriptors for how much spectrum a given signal occupies, and has very little to do with throughput. 802.11b occupies 6MHz of bandwidth to carry 11Mbps, while a QAM256 carrier on cable sends 36Mbps using 6MHz channels. Both of these are broadband, and both have the same bandwidth, but they have significantly different throughputs.

The correct term would really be data rate, or throughput, or something along those lines.

Comment: Re:Time to abandon normal phones? (Score 1) 217

Now Customer Owned and Maintained Equipment (COME) has let the jeanie out of the bottle and there is no way to put the jeanie back in the bottle. I you have a business trunk line and a DID even over VOIP, setting your own line display name is a normal administrative task.

Sure, but the telco should still sanity check the ANI provided to make sure it's a number permitted over that PRI (or whatever you're calling with). IE: if you order a PRI with a 100 block of DIDs, the telco should reject any number that's not within your block of DIDs. If you want outbound calls to match your toll free, fine, but you should have to register that with the telco to permit it.

Comment: Re:How is it misleading? (Score 1) 103

by Strider- (#48784897) Attached to: Canadian Government Steps In To Stop Misleading Infringement Notices

Non commercial Infringement is a civil dispute, smuggling is a crime.

Except that it wasn't a crime in Canada when he sold the seeds. Under Canadian law, the seeds themselves aren't controlled substances, so it's perfectly legal to buy and sell them. What Marc Emery did was not a crime in the location that he did it in.

Comment: Re:What floated by the Dragon's solar panels? (Score 1) 213

by Strider- (#48782663) Attached to: SpaceX Rocket Launch Succeeds, But Landing Test Doesn't

Probably a cover (either foil or tyvek, not sure what they use) that covers over the RCS jets while the rocket launches, then is discarded when the jet is first fired. A similar thing was occasionally seen on shuttle launches. These covers are there to keep crap (both bird, and rainwater etc...) out of the jets while the rocket is sitting on the pad.

Comment: Re: Minor setback (Score 1) 213

by Strider- (#48782643) Attached to: SpaceX Rocket Launch Succeeds, But Landing Test Doesn't

But what good would it do to keep an empty fuel tank in orbit ?

Especially one that's covered in foam that's off-gassing, and shedding small bits and pieces over time. Also, never mind the fact that the tanks were built as thin and as lightweight as possible, so had they been pressurized and converted into living spaces, they would have provided little to no shielding against space debris or radiation. Also, never mind the fact that by definition they were almost empty after launch, so you would still need to haul up all the fittings, equipment, furniture, etc... that you would need to stick inside them.

The reality is that other than the strong-back that held the shuttle and the SRBs together, the ETs were really just giant aluminum cans, and were about as useful as a spent aluminum can.

Comment: Re:Nonsense! (Score 1) 340

by Strider- (#48770769) Attached to: Researchers "Solve" Texas Hold'Em, Create Perfect Robotic Player

How do the creators of this thing say it's perfect?

They have computed every possible game of limit hold'em poker. Based on these computations, the bot will always pick the optimal hand for the given situation (or possibly fold). Yes, it may lose a hand here or there, but the point is that over the long term, given enough hands, it will always beat imperfect (read human) players.

Matter will be damaged in direct proportion to its value.

Working...