Become a fan of Slashdot on Facebook


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Comment: I have two answers for you (Score 4, Interesting) 279

First, go plug your laptop in via ethernet in the awful location, and admire the glorious bandwidth.

Second, use your powerline adapters and/or some 802.11ac routers to get internet in the rest of your house. I'm almost certain there is no real need for you to use the full gigabit connection, so for now just don't worry about it. Of course this is not the answer you want, but it's the practical solution.

Comment: Re:Sounds like a scam, quite frankly (Score 1) 143

by sanpitch (#45178573) Attached to: D-Wave Quantum Computing Solution Raises More Questions

I think the search that you refer to is Grover's algorithm:'s_algorithm
Yes, Quantum computers have other known uses besides Shor's and Grover's algorithms. Specifically, they can simulate other quantum systems, and also do a few other things such as solving algorithms based on quantum walks. See

I have a similar question to yours. Do the D-Wave people claim any mapping of their hardware to a known quantum algorithm such as those at the last link above, or what?

Comment: Have someone next to you squeeze your arm (Score 5, Insightful) 189

by sanpitch (#43386481) Attached to: Ask Slashdot: How Can a Blind Singer 'See' the Choirmaster's Baton?

If you're singing in a choir, then you're standing next to someone else, who is likely sighted. Just have them give you the cue. It could be that they hold your upper arm, and slide it down to the elbow it as the choirmaster's baton drops. If the choirmaster gives a four-count before starting, then the helper's signal may be four squeezes on your arm, or four taps on your shoe. I don't imagine that it would take much training for a new person to help you with this, and it's much cheaper than some high-tech solution which may not work.

Comment: Beamforming+Cognitive Radio+more spectrum (Score 1) 250

by sanpitch (#30929850) Attached to: Has 2.4 GHz Reached Maximum Capacity?

A system with M antennas (.11n) can give roughly M times the throughput of a single-antenna system or can cancel roughly M-1 strong interferers. Even if it isn't here now, future systems will do a smart tradeoff between high throughput and interference cancellation, use spectrum sensing ('cognitive radio'), and add more spectrum to give very flexible systems.

Comment: Re:Dependencies among projects (Score 1) 154

by sanpitch (#29545337) Attached to: Google Project 10^100 Reaches Voting Phase

All these projects depend on the Make government more transparent. Without this one, the governments will limit all other projects. This is exactly the same reason why Lawrence Lessig is fighting corruption and not copyright problems. He was fighting people that couldn't hear him.

So, I vote for it.

Amen to that. I think the "community" projects share some ideas and could be combined to some degree. Start with "Transparent Govt" then move on to "Collect and organize the world's urban data," "Work toward socially conscious tax policies," and "Create real-world issue reporting system".

"Pay no attention to the man behind the curtain." -- The Wizard Of Oz