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Comment iPhad; hardware is sexy? (Score 2, Insightful) 174

Obviously, from a shiny perspective, the iPad is a sexy device; but Apple's true mastery is that of the lack of a user interface.

Fixed that for ya.

1. There is nothing sexy about a crippled CPU with no connectivity.

2. People can't handle choices. If you give them a device with only a few buttons, then it's like a microwave and they're happy.

Comment Re:pattern? (Score 2, Interesting) 220

What'll be different, I think, is that a lot less information will be lost in the demise of a "modern" culture simply due to the global (that's the key word here) communications network and data archival abilities we now possess. If the US went into oblivion, the world wouldn't have to re-invent the Ford Model-T or "Freedom Fries"; That data will be quite difficult to get rid of due to geographic redundancy.

Also, spoken langauges don't die off in short periods of time. Given the available compute power and potential advances in translation software, it should be relively easy to bring texts up to the new language. You won't need a giant rock and guys like Daniel Jackson spouting some Goa'uld nonsense.

Comment Re:[sigh] (Score 1) 457

False. From the infamous section 3.3.1:

Applications that link to Documented APIs through an intermediary translation or compatibility layer or tool are prohibited.

You cannot code in Objective C, C, or C++ unless you are using Apple's proprietary APIs.

What about that says you have to use Apple's API? It just says you can't use a 3rd party wrapper.

Comment Re:[sigh] (Score 2, Interesting) 457

Users are free to choose another device if they feel that strongly about the situation. My hunch is that /. won't accurately represent the marketplace, however.

One thing people tend to forget here on the dot is that Apple doesn't sell "computers" as we define it. They sell a style or rather a UI. It's like going to Casa Bonita; you go there for the scenery not the food.

As much as I hate Apple, it's their right to do what they want with the device. Especially considering that you have a choice of phones to choose from. Yes, Verizon+Droid is indeed a choice. Forgetting the touch UI issues with flash, it's just too slow and Apple wants their device to be as polished and native looking as possible for the "experience".

I'll put it in Star Trek terms: If you built your house to look like the bridge of Voyager, you'd be pissed if your [insert related person here] up and installed an ugly looking "crystal" SG-Atlantis control panel.

I still don't see why Apple aren't allowed to set the terms of participation in their program. If you sign up as an iphone/ipod/ipad developer, you know what you're getting into, and you know they can change their rules at any time. Don't come whining when you don't like it any more

Yes, absolutely. The same applies for Facebook app developers too. You're programming for a closed platform, controlled by a closed company.
If you can't handle that, develop for Android.

Comment Re:How many LEDs is that? How much power in LEDs? (Score 1) 174

Forward voltage to current is non-linear. It is exponential.You can approximate it linearly if you want, but you'll get error.
Fine, those charts show current handling, not luminous efficacy.
Try this chart for size:
http://www.ledsmagazine.com/features/4/8/1/MarlFig4

Still not convinced?
http://www.ledsmagazine.com/features/4/8/1
"The light output from an LED light source decreases with increasing LED die junction temperature. Higher LED die junction temperatures, resulting from increased power dissipation or changes in ambient temperature, can have a significant effect on light output."

If you want even more:
http://optodatabook.liteon.com/DataBookFiles/8426/LTST-C190CKT.pdf
Look at figure 5 on page 6. This is live charts for a real part used in real electronics.

Comment Re:How many LEDs is that? How much power in LEDs? (Score 2, Informative) 174

There is only one reason that I can think of for driving at that power: temperature. This doesn't really apply to switches because they're going to (hopefully) stay in air conditioned rooms, however: Once you get past 40C the effective brightness of the LED starts to approach 0 very rapidly. This is critical for equipment spec'd to run in industrial conditions. Because LEDs are so non-linear, designing a product with wide temp ranges with LEDs can be a real PITA. There is a good explanation here.

Comment How many LEDs is that? How much power in LEDs? (Score 5, Funny) 174

Lets see... That's 100,000 ports with 2 LEDs each (link, action/fdx/speed/poe) for a total of 200,000 LEDs. Lets say they use some of the cheapest SMD LEDs on the market. Well use digikey part number 160-1183-1-ND which is a cheap 0603 foot print green LED. At quantity 200,000 that comes out to $12,000 in cut-tape packaging or $9,450 if you buy 210,000 of them in 3,000-qty reels.

Lets say that all of the link LEDs are on 100% of the time and the the activity LED is on 50% of the time. That gives us 150,000 LEDs on at any given point in time. Our example LEDs use 20ma at 2.1V. So 150,000 LEDs at 20ma uses 3Ka. In total, 6.1Kw is burned by the green LEDs.

All that blinking... Damn. I want one NOW!!! More than a girl friend!

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