Critical Angle Lab

[griffallstar]

so critical angle is 43???????

[nat31391]

My apologies, but you'll have to crank it up for this vid =( i had a crappy mic 3 years ago, i was speaking right into the mic and it still wouldn't pick up my voice that well.

[megaelliott]

Stand closer to your mic.

[tombik00]

Im so scared