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# verence

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## Achievements

500+ Comments Earned a silver medal
• No.(Well, maybe just in an emergency, for some short calls.)Take a phone battery - a common one like the iPhone 5s has a capacity of 1560mAh.Even a (very expensive - like 10US\$ apiece) lithium 9V battery has only 1000mAh (the fact that it has 9V instead of just 5V doesn't matter, those 4 volts get converted to heat by the regukator...) an alkaline battery is more like 500mAh and a zinc-carbon like 250 mAh...And don't forget that the regulator has no heat sink at all. Remember those 4V voltage difference? Multiply the current needed (and a charging smart phone may want like 2A) with thos 4V to get the power this teeny tiny regulator has to convert to heat. Any more than 200mW (or 50mA) - I'm just guessing here as the data sheet says nothing about the IC in mid air - will probably fry the c…

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No.(Well, maybe just in an emergency, for some short calls.)Take a phone battery - a common one like the iPhone 5s has a capacity of 1560mAh.Even a (very expensive - like 10US\$ apiece) lithium 9V battery has only 1000mAh (the fact that it has 9V instead of just 5V doesn't matter, those 4 volts get converted to heat by the regukator...) an alkaline battery is more like 500mAh and a zinc-carbon like 250 mAh...And don't forget that the regulator has no heat sink at all. Remember those 4V voltage difference? Multiply the current needed (and a charging smart phone may want like 2A) with thos 4V to get the power this teeny tiny regulator has to convert to heat. Any more than 200mW (or 50mA) - I'm just guessing here as the data sheet says nothing about the IC in mid air - will probably fry the chip.This circuit may be okay for small loads - a few 10s mA - but keep in mids that the data sheet states a minimal load of 10mA for a stable regulation...

• verence commented on 7q2's instructable How to Tie Your Shoelaces

Or do it like this guy.

• verence commented on Hafsah Aamer's instructable The Diameter Puzzle

Why so difficult? Fold the circle in half - done. Doesn't even need a pencil ;-)

• What are your tmp variables for? The are not used anyhow.Start your loop with the second element. The first one is already in small and large.for (int i = 1; i < arr.Length; i++)Why a second loop through all of the array to count the appearances of the smallest value? Do it in the first loop.if (small > arr[i]) { indexAmountSmallestNumber = 1; small = arr[i];}else if (small == arr[i] indexAmountSmallestNumber++;In that case, you'll have to initialize the indexAmountSmallestNumber to 1.Getting arr[i] four or more times can be costly. Get it once into a temporary variable and use that, or use a foreach loop.Remove your comments. They are less than helpful. For example://large == 4, arr[i] == 5Well, maybe the one time you checked it in the debugger. But will that help you to unders…

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