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Submission + - Detecting USB Power Adapters That Don't Meet Certification (hackaday.com)

szczys writes: The USB to mains adapter is an important part of electronics. It's the last line of defense between the device and line voltage. But it also defends the user against shock and guards against accidental fire. Bob recently took on the challenge of finding safe and reliable USB power adapters to ship with a product his company has developed.

USB power supplies are super cheap and omnipresent. They are the Tribble of my household. But they're not all created equal, and some of them may even be dangerous. I had to source USB power supplies for a product, and it wasn't easy. But the upside is that I got to tear them all apart and check out their designs.


Comment Re:installment plan... (Score 1) 107

I don't know why the articles are making this out to be so complicated.
  1. Take the price of the phone you want. e.g. iPhone 6s 64GB: $749.00
  2. Subtract the value of your trade in to get the amount you are going to pay. e.g. iPhone 5c: $749.00 - $200.00 = 549.00
  3. Divide in 24 equal, interest free payments. e.g. $549.00 / 24 = $22.87 a month

You might be forced to pay the entire sales tax upon purchase.

Comment Re:When you say "impossible," do you *mean* imposs (Score 5, Informative) 231

I think the statement reads oddly out of context because the case is about an iOS7 phone, where it's not 'impossible' (only burdensome) yet warning them that it will be impossible in the future. They're afraid that un-encrypting it now, just because it's not 'impossible' will mean that in the future they might be forced (by law) to make it possible, so they're arguing that they shouldn't have to do it, even now that it's only 'burdensome'.

Comment Dominican Republic (Score 4, Informative) 280

Just providing my own anecdote to the conversation. Seems like the entire* country of Dominican Republic is using WhatsApp. From what I recall, BlackBerry Messenger had become the IM app of choice. People saw it as "free SMS". Everyone wanted a BlackBerry, just for the messenger app. Long after RIM had lost most of it's marketshare here in the US, it was still going strong there. Eventually though, they couldn't ignore the iPhone anymore, and WhatsApp was one of the few IM apps that worked across the phones. Now, black berry is dead, and iPhones have iMessage, but WhatApp has momentum, and much better group messaging features. I personally don't know of anyone in the US that uses WhatsApp without there having been a need to communicate which someone internationally that has it. Stop looking for users in the US. That's not where the WhatApps users are.

Comment Re:Still Cheaper Than Ridiculously Expensive AT&am (Score 1) 182

Hardly. I just just checked prices (because I'm out of contract with AT&T and thinking of upgrading to a smart phone), and AT&T will charge me $130/mo for two iPhones while Sprint will charge me $128/mo for two Droid phones - and that's without the 4G tariff.

I don't see how you can price a comparable plan on AT&T for $130.
I have 4 phones on my family plan and everyone in my family would sure like an iPhone, but the value is just not there when you compare AT&T prices to Sprint.
You would have to find an AT&T plan that charges $40 for 2 lines since you need to add at least $90 in add-ons ($60 (2x$30) for iPhone data plan + $30 for family messaging) to match the Sprint plan.
The "Sprint Everything Data Family - with Any Mobile, AnytimeSM" get you, for $129/month:
    1500 anytime minutes
      free nights and weekends (7PM-7AM)
    'unlimited' pda internet
    Free anytime Mobile to ANY Mobile (this is huge!)
The closest similar AT&T plan would be the "Nation 1400 FamilyTalk w/Rollover® Minutes" plan, for a total $179/month and:
    nights and weekends are 9PM to 6AM
    free mobile to mobile only to other AT&T phones "from within your calling area".

Math

7 of the Best Free Linux Calculators 289

An anonymous reader writes "One of the basic utilities supplied with any operating system is a desktop calculator. These are often simple utilities that are perfectly adequate for basic use. They typically include trigonometric functions, logarithms, factorials, parentheses and a memory function. However, the calculators featured in this article are significantly more sophisticated with the ability to process difficult mathematical functions, to plot graphs in 2D and 3D, and much more. Occasionally, the calculator tool provided with an operating system did not engender any confidence. The classic example being the calculator shipped with Windows 3.1 which could not even reliably subtract two numbers. Rest assured, the calculators listed below are of precision quality."

Submission + - Palm Profile website outage diables Palm Pre. 1

luiss writes: "Palm Pre owners have to register and create a Palm Profile before they can activate your phone. The Palm Profile website has been down since sometime last night. If your phone happens to contact the site while it's down, it prompts you to "Restart" or "Erase All Data"! If you restart, it will not activate until you login to your Palm Profile, which is down. It does give you the option to make a 911 call or contact customer support. Customer support is not available. Palm Pre forums are slowly coming to life as Pre owners across the US start to wake up and finding their Pre has become a brick until further notice."

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