Recent content by tetra

Cool! Thanks Dave.

Greetings, in a small project I'm doing, I need to have a small speaker literally touching the outside of a lithium-Ion battery. Will there be any negative results to these devices being in such close proximity? e.g. noise introduced into the speaker, or odd behavior induced upon the battery? If...

@zoki85 Thanks for replying to #1. I intuited the same. Do you have any idea about the second question? My thought is yes about #2 (asymmetrical sides) as well, and I think it has to do with the skin effect of the conductor. I'm not sure about the composite behavior though - or if a 'hollow'...

Where is all this coming from? just thinking about lasers and how light behaves. thank you all for your thoughtful and well articulated answers. sorry it was in the wrong room though... thanks

1.) if the laser was aimed at an observer 186,000 away, what would they see? if a one second pulse, would they see it one second after firing it? in other words, after I stopped firing it. 2.) assume all beams converge through a single point. aside from any interference that may occur, would...

Stuff I'm wondering about: * can/does a conductors' cross-section influence inductive efficiency and/or directionality? * consider a 'wire' made from a dielectric material, with a conductive material evaporatively deposited on it's surface. if this wire were asymmetrical in section, e.g. it...

Thought Experiment 1: I shoot a laser into space for one second. Just before I let off the trigger, the face of the beam is ~186,000 miles away. What happens to the beam when I let off? Does it instantly cease to exist? Does the tail compress into the stopped head and go poof :)? Does that...