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the street lights always go off when my mom drives past them

2007-03-22 15:22:57 · 4 answers · asked by awester13@sbcglobal.net 1 in Science & Mathematics Physics

4 answers

I'm pretty sure it has nothing to do with your mom's kinetic energy. Some defective lights go off and on by themselves. There's one like that in my neighborhood, and it feels like it either goes on or off almost every time I walk by, but it goes on and off when I don't walk by too.

Many street lights have light sensors on them. I suppose if they were set too sensitive, and maybe if your mom's car's headlights aim a bit high, they could be turning off for that reason, but that's a stretch in my opinion.

2007-03-22 15:32:30 · answer #1 · answered by Phaedrus 3 · 0 0

Since kinetic energy is the energy of motion, I suppose throwing a rock might do it. The idea that this happens due to something like a person's aura or something is a myth. Lights do sometimes go off but that is generally due to a short or an overload in the light. Sorry, nothing too interesting - unless you mean that every light your mom passes goes out.

2007-03-22 15:34:12 · answer #2 · answered by finra 4 · 0 0

Street lights have a passive infrared switch that both determines that it is dark and reacts to the infrared emittd by passing traffic. All matter emits some IR energy, and the warmer the object, the brighter the IR signature. The switches can be tuned to react to people, engine blocks, animals or whatever.

2007-03-22 15:30:38 · answer #3 · answered by Matthew P 4 · 0 0

so a strategies as i understand, there's slightly cellular which reacts to the surrounding effortless in some fashions of highway effortless (or there is one for an entire highway). even by way of fact the effortless intensity is very virtually on the element the placement it considers there is dark adequate, a tiniest substitute can turn it over. this would top be led to by using your shadow, then. The circuitry makes use of a few concern stated as a Schmitt set off off to stay faraway from turning on decrease back in case of small fluctuations (the intensity decrease for turning off is placed slightly better that the decrease for turning on). This type is significantly better elementary and effective than utilising the lights centrally by using a computing gadget.

2016-12-15 06:48:07 · answer #4 · answered by goslin 4 · 0 0

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