Let's see. Sound travels at 340 m/s. To cover a distance of 2.5m, it would take 0.0074s or 7.4 ms. Maybe the balloon collapses faster than that?
Well, I just wasted one blue balloon. Fourteen more to go.
 |
| Blue balloon pop |
Monday, January 23, 2012
Sound trigger for high speed flash photography, part 5
So, it's easier said than done. My balloon pop test shows that my circuit is too slow or that sound does not travel fast enough--the microphone was positioned about 2.5 metres away. The flash gun was positioned about a metre away.
Let's see. Sound travels at 340 m/s. To cover a distance of 2.5m, it would take 0.0074s or 7.4 ms. Maybe the balloon collapses faster than that?
Well, I just wasted one blue balloon. Fourteen more to go.
Let's see. Sound travels at 340 m/s. To cover a distance of 2.5m, it would take 0.0074s or 7.4 ms. Maybe the balloon collapses faster than that?
Well, I just wasted one blue balloon. Fourteen more to go.
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