Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment: Re:Control unit runs at 100 Hz? (Score 2) 249

by bosef1 (#49600635) Attached to: Long Uptime Makes Boeing 787 Lose Electrical Power

That makes a lot of sense. A lot of aviation power systems run with 400 Hz AC current (the higher frequency lets them use smaller transformers). They could be dividing down the power signal to 100 Hz, and using that to increment a counter.

The other option is that many operating systems use 10 ms = 100 Hz for their internal interrupt timers. So it could just be a counter that is being incremented every interrupt cycle, and doesn't care what frequency of electricity is being used.
(cf. the jiffy http://en.wikipedia.org/wiki/Jiffy_(time) )

Comment: Something completely different... (Score 2) 667

by bosef1 (#49264453) Attached to: Why There Is No Such Thing as 'Proper English'

The article doesn't explain why there is no prescriptive body for the English Language; something that would be equivalent to the Acdemie fancaise. Instead it discusses how English lacks a prescriptive basis, and how it becomes incumbent upon the speaker to match their use of the language their audience and purpose for speaking.

Comment: Nothing could possi (Score 2) 164

by bosef1 (#49061275) Attached to: Researcher Developing Tattoo Removal Cream

So instead of having the tattoo ink spread out in a relatively benign part of my dermis, instead I'll concentrate it in my lymph nodes. It feels like this could cause problems. How does the body clear the ink from the lymph nodes? Is it broken down; or does it just stay there, possibly clogging the nodes, or acting as an irritant and maybe causing a long-term cancer risk.

Maybe we could also turn the research around. If there were ways to make less digestable or less "attractive" inks, or to pre-train the macrophages to ignore the ink particles, you could make longer-lasting tattoos that need less ink to apply and fewer touchups.

Comment: Re:The answer was in front of our faces. (Score 1) 273

by bosef1 (#48800877) Attached to: Silicon Valley's Quest To Extend Life 'Well Beyond 120'

And doesn't Keith Richards have his blood replaced every three years or so? So there should be a lot of used blood around anyway for... testing. Yeah, testing, that's what I'll call it...

I should want to cook Keith a simple meal, but I shouldn't want to cut into him, to wear the blood, to be born unto new worlds where his blood becomes my key...

I'll be in my bunk.

Comment: Re:Meaningless drivel (Score 3, Interesting) 100

by bosef1 (#48789881) Attached to: US Lawmakers Push For a Permanent Ban On Internet Access Taxes

I second that it doesn't seem like a reasonable thing to have the Federal government telling State governments how to tax Internet access. I also agree that it would be a dumb idea for the states to tax the Internet as a money-making device (there's not that much money in it unless you do some ridiculous tax like by the megabyte; it would be easier just to raise the income tax by 0.25% or something like that). I could see some states wanting to set up state-levied universal access fees, but then it would at the state level and better aligned with the individual needs of the states (yay laboratories of Democracy).

I also agree the AC that it is probably within the Fed's power to tell the States they can or cannot tax the Internet under the Commerce clause. But the Commerce clause is so abused it lets anyone do just about anything; and that's a whole other argument.

Comment: Re:Touchscreens Suck for Situation Awareness! (Score 1) 123

by bosef1 (#48650117) Attached to: "Infrared Curtain" Brings Touchscreen Technology To Cheap Cars

Aside from complete marketing "cool" factor, my guess would be that it a cheap touchscreen is (now) cheaper than all of discrete control knobs. You only need one cutout in the center console, and you don't need all the extra wires and switches and things. Also, it is easier to configure different virtual controls on the one touchscreen system for all the different vehicles, trim lines and vehicle configurations you make. The touchscreen may even be a little more reliable than the physical controls, assuming someone doesn't punch it.

I too appreciate the physical controls, and it's not clear that the touchscreen really adds anything to the experience besides the "cool" factor.

Comment: Re:Extra Credits (Score 2) 121

by bosef1 (#48638777) Attached to: Ask Slashdot: Resources For Kids Who Want To Make Games?

I second Extra Credits. They provide a lot of good analysis and breakdowns of why some games work well, and how others could be made to work better. Here's a link to the YouTube site:
https://www.youtube.com/user/ExtraCreditz

I also liked "Shut Up & Sit Down", who seem to do very good play reviews. They might be a little "mature" for an 11-year-old, so I would check the sit out first and make your own call.
http://www.shutupandsitdown.com/

We cannot command nature except by obeying her. -- Sir Francis Bacon

Working...