Why C-3PO Has One Red Arm
We got to see a few minutes of some old friends in The Force Awakens: R2D2 and C-3PO. But the golden droid had a red arm! What’s up with that? We were told the answer would be revealed in a Marvel comic book months ago, but it was delayed. The explanation came out today, a one-shot issue called Star Wars: C-3PO #1. If you want to go buy the comic, you’ll want to skip the rest of this post. Otherwise, here’s the reason that C-3PO has one red arm in the movie The Force Awakens.
You can read more about the story at Gizmodo. In fact, they tell the whole plot of the comic.
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Comments (1)
Its impossible to be electrocuted by a computer, unless you're going for a Darwing Award :) ... in that case you deserved it.
First, the wirings are always insulated, and touching them is not a risk. I've done it.
Second, no personal computer I've heard of uses 380 VOLTS. It might have been 380 WATTS, which is quite different from 380V. Actually 380W is a quite common value for PSUs, specially for older computers.
The currents in the Power supply Unit (aka PSU) are rather high, but the voltages are low (12V max). A working PSU can give you a shocking experience (pun intended!), but not enough to kill. You either have low voltage and high current or high voltage and low current.
Touching the electronic circuits in the computer (like motherboard) will not kill you, and the motherboard will be damaged before you even feel the shock (I've been there!!). Voltages in the motherboard vary from -12V to +12V, so, if he was extremely unlucky, the most voltage he could get from the motherboard would be 24V.
In a 110V shock, studies show that you need at least 4 mA to even starting feeling the "tingling". A real shock starts at 300mA. An average size adult man needs at least 5A to die from a 110V shock. anything below that might not kill you, but might give you varying consequences, from brain and heart damage to severe burns.