12 Hour Circuit

I really didnt spend much time on making the circuit.  It’s just a couple LEDs soldered to a battery with a 1k resistor. I figured that a good test of the circuit would be if I slept wearing it.  The body moves around a lot when sleeping, and the wear of the sheets and clothing against the circuit would be an ultimate test.  I simply stuck the LEDs through a pocket in my pjs and went to sleep.  In the morning, the circuit had fallen off and was lost in my sheets.  It broke at a point where the resistor and LEDs were soldered together, and this was due to the leads on the resistor being quite thin contrasted with the bulk of solder and the thicker LED leads.

Making the (extremely very simple) circuit

Attached by sticking the LED leads through the fabric of my sleeping shirt

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